NEET Biology Locomotion and Movement Question Bank

done Self Evaluation Test - Locomotion and Movement Total Questions - 108

• question_answer1)
  What is sarcomere?
  A)
  Part between two H-lines done clear
  B)
  Part between two A-band done clear
  C)
  Part between two I-bands done clear
  D)
  Part between two Z-lines done clear
  View Solution play_arrow

• question_answer2)
  Which one of the following is a skull bone?
  A)
  Atlas                                         done clear
  B)
  Coracoid done clear
  C)
  Arytenoid       done clear
  D)
                     Pterygoid done clear
  View Solution play_arrow

• question_answer3)
  During muscle contraction:
  A)
  ATP is broken down                    done clear
  B)
  ATP is formed done clear
  C)
  GTP is broken down                    done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer4)
  Which is a part of pectoral girdle?
  A)
  Glenoid cavity   done clear
  B)
                     Sternum done clear
  C)
  Ilium                                         done clear
  D)
  Acetabulum done clear
  View Solution play_arrow

• question_answer5)
  Which of the following is striped muscle but not voluntary in action?  
  A)
  Cardiac muscle                           done clear
  B)
  Abdominal done clear
  C)
  Shank                                       done clear
  D)
  Wrist muscles done clear
  View Solution play_arrow

• question_answer6)
  Which of the following are involved in muscle contraction?
  A)
  \[C{{a}^{2+}}andM{{g}^{2+}}\]     done clear
  B)
                     \[C{{a}^{2+}}andN{{a}^{+}}\]     done clear
  C)
  \[N{{a}^{+}}and{{K}^{+}}\]            done clear
  D)
  \[M{{g}^{2+}}and{{K}^{+}}\] done clear
  View Solution play_arrow

• question_answer7)
  Part of the body having a single pair of bones is:
  A)
  Pelvic girdle     done clear
  B)
                     External ear done clear
  C)
  Wrist                                         done clear
  D)
  Lower jaw done clear
  View Solution play_arrow

• question_answer8)
  Cardiac muscles are different from that of skeletal muscles as the former are:
  A)
  Striated but involuntary. done clear
  B)
  Non-striated and involuntary. done clear
  C)
  Smooth or unstriated. done clear
  D)
  Voluntary in action. done clear
  View Solution play_arrow

• question_answer9)
  Which of the following joint is found between sternum and the ribs in humans?
  A)
  Angular joint                              done clear
  B)
  Fibrous joint done clear
  C)
  Cartilaginous joint done clear
  D)
                     Gliding joint done clear
  View Solution play_arrow

• question_answer10)
  Which of the following sets of antagonistic muscles is incorrect?      
  A)
  Flexor        -   Relaxor done clear
  B)
  Abductor   -   Adductor done clear
  C)
  Pronator    -   Supinator done clear
  D)
  Levator     -   Depressor done clear
  View Solution play_arrow

• question_answer11)
  Which one yields ATP, required for muscle contraction?                 
  A)
  Myoglobin           done clear
  B)
     Creatine phosphate done clear
  C)
  Creatinine phosphate done clear
  D)
  Myosin done clear
  View Solution play_arrow

• question_answer12)
  Ankle joint is:
  A)
  Pivot joint       done clear
  B)
                     Ball and socket joint done clear
  C)
  Hinge joint                                 done clear
  D)
  Gliding joint done clear
  View Solution play_arrow

• question_answer13)
  Which of the following is not exclusively supplied with involuntary muscles?
  A)
  Muscles of iris done clear
  B)
  Muscles of the ducts of gland done clear
  C)
  Muscles of urethra done clear
  D)
  Muscular coats of blood vessel done clear
  View Solution play_arrow

• question_answer14)
  ATPase activity is found in:
  A)
  Myosin filament done clear
  B)
                     Actin filament done clear
  C)
  Both [a] and [b] done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer15)
  Biceps are attached with:
  A)
  Radius                                       done clear
  B)
  Ulna done clear
  C)
  Femur                                       done clear
  D)
  Humerus done clear
  View Solution play_arrow

• question_answer16)
  Example of an imperfect joint is:
  A)
  Suture                                       done clear
  B)
  Pubic symphysis done clear
  C)
  Elbow joint     done clear
  D)
                     Ball and socket joint done clear
  View Solution play_arrow

• question_answer17)
  Elbow joint is:
  A)
  Ball and socket joint done clear
  B)
  Hinge joint done clear
  C)
  Suture joint                                done clear
  D)
  Gliding joint done clear
  View Solution play_arrow

• question_answer18)
  Which set clearly identify striated muscles?
  A)
  Cylindrical, syncytial and unbranched done clear
  B)
  Spindle, unbranched and uninucleated done clear
  C)
  Cylindrical, striped and nucleated done clear
  D)
  Cylindrical, striped and branched done clear
  View Solution play_arrow

• question_answer19)
  The joint  between incus and stapes is;
  A)
  Hinge joint      done clear
  B)
                     Gliding joint done clear
  C)
  Pivot joint       done clear
  D)
                     Ball and socket joint done clear
  View Solution play_arrow

• question_answer20)
  Which is a high energy compound in muscles?
  A)
  Glucose                                     done clear
  B)
  Starch done clear
  C)
  Glycogen       done clear
  D)
                     Creatine phosphate done clear
  View Solution play_arrow

• question_answer21)
  Muscles must have something rigid to pull against if they are to cause movement. In case of humans, the rigidity is supplied by ____; in the case of earthworms, the rigidity come from???.
  A)
  A hydrostatic skeleton; an endoskeleton. done clear
  B)
  Opposing muscles; an exoskeleton. done clear
  C)
  An exoskeleton; an endoskeleton; done clear
  D)
  An endoskeleton; a hydrostatic skeleton. done clear
  View Solution play_arrow

• question_answer22)
  Sutures present between various bones of skull are:
  A)
  Cartilaginous joints                      done clear
  B)
  Synovial joints done clear
  C)
  Hinge joints                                done clear
  D)
  Fibrous joints done clear
  View Solution play_arrow

• question_answer23)
  Astragalus and calcaneum are part of:
  A)
  Forelimb        done clear
  B)
                     Hindlimb done clear
  C)
  Scapula         done clear
  D)
                     Clavicle done clear
  View Solution play_arrow

• question_answer24)
  The lactic acid generated during muscle contraction is converted to glycogen  in:
  A)
  Muscle                                       done clear
  B)
  Kidney done clear
  C)
  Pancreas        done clear
  D)
                     Liver done clear
  View Solution play_arrow

• question_answer25)
  Hinge joints:
  A)
  Are synovial joints done clear
  B)
  Permit movement in one direction done clear
  C)
  Are found in knee done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer26)
  In mammals, the number of cervical vertebrae is:
  A)
  7                                              done clear
  B)
  9 done clear
  C)
  1                                              done clear
  D)
  12 done clear
  View Solution play_arrow

• question_answer27)
  Joint between atlas and axis is:
  A)
  Pivot joint       done clear
  B)
                     Saddle joint done clear
  C)
  Angular joint    done clear
  D)
                     Hinge joint done clear
  View Solution play_arrow

• question_answer28)
  Muscles are arranged in pairs, ______.
  A)
  Enabling them to perform opposing movements. done clear
  B)
  Doubling their strength. done clear
  C)
  So they can take turns contracting and resting. done clear
  D)
  So if one is injured, the other can take over. done clear
  View Solution play_arrow

• question_answer29)
  The strength of contraction of an entire skeletal muscle is dependent on the:  
  A)
  Number of muscle fibres that contract simultaneously. done clear
  B)
  Frequency of contraction of each muscle fibre done clear
  C)
  Number of active cross bridges in each muscle fibre. done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer30)
  Part of the body having a single pair of bones is:
  A)
  Pelvic girdle,    done clear
  B)
                     External ear done clear
  C)
  Wrist                                         done clear
  D)
  Lower jaw done clear
  View Solution play_arrow

• question_answer31)
  The functional unit of contractile system of a striated muscle is:
  A)
  Sarcomere      done clear
  B)
                     Z-band done clear
  C)
  Sarcosome      done clear
  D)
                     Myofibril done clear
  View Solution play_arrow

• question_answer32)
  During muscle contraction: 
  A)
  Size of A-bands remains the same. done clear
  B)
  Size of H-zone becomes smaller. done clear
  C)
  Size of I-bands decreases. done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer33)
  Quadriceps and gastrocnemius muscles lie in:
  A)
  Legs                                          done clear
  B)
  Hands done clear
  C)
  Wrist                                         done clear
  D)
  Shoulder done clear
  View Solution play_arrow

• question_answer34)
  Pneumatic bones are .found in:
  A)
  House lizard     done clear
  B)
                     Pigeon done clear
  C)
  Flying fish      done clear
  D)
                     Frog's tadpole done clear
  View Solution play_arrow

• question_answer35)
  Intercostal muscles occur in:
  A)
  Abdomen       done clear
  B)
                     Thigh done clear
  C)
  Ribs                                          done clear
  D)
  Diaphragm done clear
  View Solution play_arrow

• question_answer36)
  Which of the following would you not expect to find in both a skeletal muscle cell and a cardiac muscle cell?
  A)
  Actin filaments done clear
  B)
  Myosin binding sites done clear
  C)
  Potassium channels that close slowly after an action potential. done clear
  D)
  Large numbers of mitochondria done clear
  View Solution play_arrow

• question_answer37)
  Striated muscle fibres are found in;
  A)
  Urinary bladder done clear
  B)
                     Lungs done clear
  C)
  Gallbladder    done clear
  D)
                     Leg muscles done clear
  View Solution play_arrow

• question_answer38)
  Which of the following animal has no skeleton?
  A)
  Sponge                                      done clear
  B)
  Butterfly done clear
  C)
  Jellyfish                                     done clear
  D)
  Starfish done clear
  View Solution play_arrow

• question_answer39)
  Which of the following muscle bends a part over another?
  A)
  Flexor                                        done clear
  B)
  Extensor done clear
  C)
  Abductor       done clear
  D)
                     Adductor done clear
  View Solution play_arrow

• question_answer40)
  Sliding filament theory of muscle contraction was given by:
  A)
  Amon and Hill done clear
  B)
  Huxley and Pullman done clear
  C)
  Huxley and Huxley done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer41)
  A deltoid ridge occurs in:
  A)
  Radius                                       done clear
  B)
  Ulna done clear
  C)
  Femur                                       done clear
  D)
  Humerus done clear
  View Solution play_arrow

• question_answer42)
  Multi-unit smooth muscles are found in the wall of:
  A)
  Large blood vessels                     done clear
  B)
  Intestine done clear
  C)
  Stomach                                    done clear
  D)
  Urinary bladder done clear
  View Solution play_arrow

• question_answer43)
  Phalangeal formula of hand of man is:
  A)
  1, 2, 2, 2, 2     done clear
  B)
                     2, 1, 1, 1, 1 done clear
  C)
  2, 3, 3, 3, 3     done clear
  D)
                     2, 3, 3, 2, 2 done clear
  View Solution play_arrow

• question_answer44)
  Sprain is pulling of:
  A)
  Bone                                         done clear
  B)
  Ligament of muscles done clear
  C)
  Cartilage                                    done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer45)
  Foramen magnum occurs on:
  A)
  Lateral side of skull done clear
  B)
  Posterior side of skull done clear
  C)
  Anterior side of skull done clear
  D)
  Neural canal done clear
  View Solution play_arrow

• question_answer46)
  Creatine phosphate is present in:
  A)
  Nervous tissue done clear
  B)
  Connective tissue done clear
  C)
  Muscles of vertebrates done clear
  D)
  Muscles of invertebrates done clear
  View Solution play_arrow

• question_answer47)
  Joint between bones of human skull is:
  A)
  Hinge joint                                 done clear
  B)
  Synovial joint done clear
  C)
  Cartilaginous joint                       done clear
  D)
  Fibrous joint done clear
  View Solution play_arrow

• question_answer48)
  In the given figure of pelvic girdle of man, structure marked as 1, 2, 3, 4 and 5 represents:
  A)
  1-Pubis, 2-Acetabulum, 3-llium, 4-Ischium, 5-Pubic symphysis done clear
  B)
  1-Ilium, 2-Acetabulum, 3-Pubis, 4-Ischium, 5-Pubic symphysis done clear
  C)
  1-Ischium, 2-Acetabulum, 3-Pubis, 4-Ilium, 5-Pubic symphysis done clear
  D)
  1-Ilium, 2-Pubis, 3-Acetabulum, 4-Pubic symphysis, 5-Ischium done clear
  View Solution play_arrow

• question_answer49)
  Red muscle fibres are rich in:
  A)
  Golgi bodies    done clear
  B)
                     Mitochondria done clear
  C)
  Lysosomes      done clear
  D)
                     Ribosomes done clear
  View Solution play_arrow

• question_answer50)
  A person is suffering from an age related disorder "X". X is characterised by decreased bone mass and increased chances of fractures. Identify X and its common cause.
  A)
  Tetany, Increased levels of estrogen done clear
  B)
  Osteoporosis, Decreased levels of estrogen done clear
  C)
  Myasthenia gravis, Decreased levels of estrogen done clear
  D)
  Muscular dystrophy, increased levels of Estrogen done clear
  View Solution play_arrow

• question_answer51)
  In the given diagram of skull, what does "1" represent?
  A)
  Frontal bone    done clear
  B)
                     Temporal bone done clear
  C)
  Occipital bone                            done clear
  D)
  Parietal bone done clear
  View Solution play_arrow

• question_answer52)
  Long uninucleate muscles are found in:
  A)
  Diaphragm      done clear
  B)
                     Alimentary canal done clear
  C)
  Tongue                                      done clear
  D)
  Eye done clear
  View Solution play_arrow

• question_answer53)
  Match the name of bone given in column-I with their numbers given in column-II. ______

  	column-I		column-II
  B.	Wrist bones	II.	2 pairs
  C.	False ribs	III.	12
  A.	Thoracic	I.	8
  D.	Metatarsal	IV.	3 pairs
  E.	Skull(cranial & facial)	V.	26
  		VI.	5
  		VII.	22

  A)
  A-I;     B-VI;    C-II;     D-V;    E-III done clear
  B)
  A-III;   B-I;      C-IV;    D-VI;   E-VII done clear
  C)
  A-I;     B-VII;   C-III;    D-V;    E-II done clear
  D)
  A-II;    B-V;     C-VII;   D-I;     E-IV done clear
  View Solution play_arrow

• question_answer54)
  Obturator foramen occurs in:
  A)
  Pelvic girdle     done clear
  B)
                     Pectoral girdle done clear
  C)
  Cranium                                    done clear
  D)
  Vertebrae done clear
  View Solution play_arrow

• question_answer55)
  Which of the following match is incorrect?
  A)
  8th, 9th and 10th pairs of ribs - Do not articulate directly with the sternum but join the sixth rib with the help of hyaline cartilage. done clear
  B)
  Glenoid cavity - Articulates with the head of the humerus to form the shoulder joint. done clear
  C)
  Fibrous joint - Flat skull bones which fuse end-to-end with the help of dense fibrous connective tissues in the form of sutures to form the cranium. done clear
  D)
  Increase in \[C{{a}^{++}}\] level - Leads to the binding of calcium with a subunit of troponin on actin filaments and thereby remove the masking of active sites for myosin. done clear
  View Solution play_arrow

• question_answer56)
  In the given diagram of right pectoral girdle and upper arm few structure marked as 1, 2, 3, 4, 5, 6 and 7. Identify the marked structures from the options given below.
  A)
  \[{{1.1}^{st}}\] Vertebra, 2-Scapula, 3-Humerus, 4-Radius, 5-Ulna, 6-Carpals, 7-Metacarpals done clear
  B)
  1-Scapula, 2-Clavicle, 3-Humerus, 4-Radius, 5-Ulna, 6-Carpals, 7-Metacarpal done clear
  C)
  1-Ilium, 2-Scapula, 3-Humerus, 4-Radius, 5-Ulna, 6-Carpals, 7-Metacarpals done clear
  D)
  1-Clavicle, 2-Scapula, 3-Humerus, 4-Radius, 5-Ulna, 6-Carpals, 7-Metacarpals done clear
  View Solution play_arrow

• question_answer57)
  Upon preventing acetylcholine from diffusing across a neuromuscular junction, which of the following will not occur? 
  A)
  No action potential will be produced in the affected muscle fibres. done clear
  B)
  The endoplasmic reticulum releases calcium ions (\[C{{a}^{2++}}\]) into the cytoplasm. done clear
  C)
  Myosin will not bind to actin in the affected muscle fibre. done clear
  D)
  The affected muscle fibre will fail to contract. done clear
  View Solution play_arrow

• question_answer58)
  In human beings, the second cervical vertebra helps in rotatory movements of head through knob-like process called:
  A)
  Prezygapophysis  done clear
  B)
                    Olecranon process done clear
  C)
  Odontoid process                        done clear
  D)
  Metaphysis done clear
  View Solution play_arrow

• question_answer59)
  Latissimus dorsi muscles are:
  A)
  Muscles of fore arm done clear
  B)
  Muscles of lower jaw done clear
  C)
  Muscles of the chest done clear
  D)
  Muscles of the shoulder done clear
  View Solution play_arrow

• question_answer60)
  The condition in which a number of nuclei are present in a muscle fibre is called:
  A)
  Coenocytic                                 done clear
  B)
  Syncytial done clear
  C)
  Polykaryon      done clear
  D)
                     Endoduplication done clear
  View Solution play_arrow

• question_answer61)
  A stronger muscle contraction occurs when the brain _______.
  A)
  Send signals to larger number of motor units to contract. done clear
  B)
  Activates muscle cells more quickly. done clear
  C)
  Activates the motor units of the muscle one at a time. done clear
  D)
  Sends nerve impulses to the muscle one at a time instead of in bursts. done clear
  View Solution play_arrow

• question_answer62)
  The vertebral column is connected to the pelvic girdle in the:
  A)
  Coccygeal region done clear
  B)
                     Sacral region done clear
  C)
  Lumbar region                            done clear
  D)
  cervical region done clear
  View Solution play_arrow

• question_answer63)
  Which pair does not possess corresponding bones?
  A)
  Carpals, and tarsals done clear
  B)
  Atlas and coccyx done clear
  C)
  Pectoral girdle and pelvic girdle done clear
  D)
  Humerus and femur done clear
  View Solution play_arrow

• question_answer64)
  The joint where synovial capsule and synovial fluid are lacking is:
  A)
  Carpals done clear
  B)
  Pubic symphysis in females done clear
  C)
  Finger' and toes in males done clear
  D)
  Femur and pelvis in females done clear
  View Solution play_arrow

• question_answer65)
  Which one of the following shortens when a muscle fibre- contracts?
  A)
  Thick filament   done clear
  B)
                     Sarcomere done clear
  C)
  Myosin molecule done clear
  D)
                     thin filament done clear
  View Solution play_arrow

• question_answer66)
  The number of 'true ribs' in a man is:
  A)
  12 pair           done clear
  B)
                     7 pair done clear
  C)
  3 pair                                        done clear
  D)
  2 pair done clear
  View Solution play_arrow

• question_answer67)
  Muscle contraction is triggered:
  A)
  When high levels of oxygen and sugar are released by the sarcolemma. done clear
  B)
  When a surplus of ATP is released by a nerve motor unit. done clear
  C)
  By release of a neurotransmitter at a synapse that directly causes actin and myosin to slide. done clear
  D)
  By the nerve releasing a neurotransmitter, which triggers a flow of calcium that attaches to actin filaments and exposes the myosin binding sites. done clear
  View Solution play_arrow

• question_answer68)
  A cricket player is chasing a fast ball in the field. Which one of the following groups of bones are directly contributing in this movement?
  A)
  Femur, malleus, tibia, metatarsals done clear
  B)
  Pelvis, ulna, patella, tarsals done clear
  C)
  Sternum, femur, tibia, fibula done clear
  D)
  Tarsals, femur, metatarsals, tibia done clear
  View Solution play_arrow

• question_answer69)
  Which of the following muscles draw the lower jaw, tongue and the head backward?
  A)
  Proctor                                      done clear
  B)
  Retractor done clear
  C)
  Abductor       done clear
  D)
                     All of these done clear
  View Solution play_arrow

• question_answer70)
  An example of gliding j joint is:
  A)
  Humerus and glenoid cavity done clear
  B)
  Femur and tibio-fibula done clear
  C)
  Occipital condyle and odontoid process done clear
  D)
  Zygapophyses of adjacent vertebrae done clear
  View Solution play_arrow

• question_answer71)
  Which of the following human skeletal parts are correctly matched with their respective category?

  	Pairs of skeletal parts	Category
  [A]	Humerus and ulna	Appendicular skeleton
  [B]	Malleus and stapes	Ear ossicles
  [C]	Sternum and ribs	Axial skeleton
  [D]	Clavicle and glenoid cavity	Pelvic girdle

  A)
  A and B only                             done clear
  B)
  A, B and C only done clear
  C)
  A, B, and D only done clear
  D)
                     All of these done clear
  View Solution play_arrow

• question_answer72)
  A motor unit is best described as:
  A)
  all the nerve fibres and muscle fibres in a single muscle bundle. done clear
  B)
  one muscle fibre and its single nerve fibre. done clear
  C)
  a single motor neuron and all the muscle fibres that it innervates. done clear
  D)
  the neuron that provides the CNS with information on the state of contraction of the muscle. done clear
  View Solution play_arrow

• question_answer73)
  Children sing a song that goes 'head, shoulders, knees, and toes...' If they sang the names of the bones, it would be (in order)
  A)
  Hyoid, sternum, patella, and tarsals. done clear
  B)
  Cranial, clavicle, tibia, and carpals. done clear
  C)
  Cranial, scapula, patella, and phalanges. done clear
  D)
  Clavicle, carpals, phalanges, and tarsals. done clear
  View Solution play_arrow

• question_answer74)
  Synovial fluid is found in:
  A)
  Cranial cavity done clear
  B)
  Spinal cavity done clear
  C)
  Immovable joints done clear
  D)
  Freely movable joints done clear
  View Solution play_arrow

• question_answer75)
  The given diagram shows a human skeleton. Which of the following correctly identifies the bones marked as 1, 2, 3 & 4?                 
  A)

  1	2	3	4
  Tibia	Fibula	Radius	Ulna

    done clear
  B)

  Radius

  Ulna

  Tibia

  Fibula

    done clear
  C)

  Ulna

  Radius

  Tibia

  Fibula

    done clear
  D)

  Fibula

  Tibia

  Radius

  Ulna

    done clear
  View Solution play_arrow

• question_answer76)
  Which of the following is incorrect?
  A)
  Cardiac muscle is striated. done clear
  B)
  Smooth muscle does not contain actin. done clear
  C)
  Skeletal muscle is considered voluntary. done clear
  D)
  Smooth muscle is found in the iris of the eye and the walls of the bladder. done clear
  View Solution play_arrow

• question_answer77)
  Smallest bone in the human body is:
  A)
  Stapes                                       done clear
  B)
  Malleus done clear
  C)
  Patella                                       done clear
  D)
  Navicular bone done clear
  View Solution play_arrow

• question_answer78)
  Lower jaw of man is made up of:
  A)
  1 bone done clear
  B)
  2 bones done clear
  C)
  No bones, only muscles done clear
  D)
  3 bones done clear
  View Solution play_arrow

• question_answer79)
  The action potential that triggers a muscle contraction, travels deep within the muscle cell by means of:          
  A)
  Sarcoplasmic reticulum   done clear
  B)
  Transverse tubules done clear
  C)
  Synapse done clear
  D)
  Motor end plates done clear
  View Solution play_arrow

• question_answer80)
  Which of the following does not reveal in the detailed analysis of a cilium from the human respiratory tract?
  A)
  Tubulin                                      done clear
  B)
  Plasmagel done clear
  C)
  Microtubules    done clear
  D)
                     Axoneme done clear
  View Solution play_arrow

• question_answer81)
  Spinal cord passes through:
  A)
  Foramen of Monro                      done clear
  B)
  Foramen ovale done clear
  C)
  Obturator foramen                      done clear
  D)
  Foramen magnum done clear
  View Solution play_arrow

• question_answer82)
  In mammals, the lower jaw is made of:
  A)
  Maxilla                                      done clear
  B)
  Dentary done clear
  C)
  Mandible                                   done clear
  D)
  Ethmoid done clear
  View Solution play_arrow

• question_answer83)
  Before stimulating the release of calcium ions that causes muscle contraction in skeletal muscle, an action potential must pass through the:
  A)
  Sarcoplasmic reticulum done clear
  B)
  T-tubules and Sarcoplasmic reticulum done clear
  C)
  Plasma membrane and T-tubules done clear
  D)
  Plasma membrane, T-tubules and Sarcoplasmic reticulum done clear
  View Solution play_arrow

• question_answer84)
  Which of the following statements about the molecular arrangement of actin and myosin in myofibrils is incorrect?    

  (i) Each actin (thin filament) is made of 2F (filamentous) actins.

  (ii) F-actin is the polymer of G (globular) actin.

  (iii) 2F-actins are twisted into a-helix.

  (iv) Two strands of tropomyosin (protein) lie in the grooves of F-actin.

  (v) Troponin molecules (complex proteins) are distributed at regular intervals on the tropomysin.

  (vi) Troponin forms the head of the myosin molecule.

  (vii) The myosin is a polymerised protein.

  A)
  (i), (iii), (vii)                                done clear
  B)
  (ii), (iv) and (v) done clear
  C)
  Only (vi)                                    done clear
  D)
  Only (iii) done clear
  View Solution play_arrow

• question_answer85)
  Patella bone is derived from:
  A)
  Cartilage        done clear
  B)
  Areolar tissue done clear
  C)
  Tendon                                      done clear
  D)
  Ligament done clear
  View Solution play_arrow

• question_answer86)
  In humans, coccyx is formed by the fusion of:
  A)
  3 vertebra                                  done clear
  B)
  4 vertebra done clear
  C)
  5 vertebra       done clear
  D)
                     6 vertebra done clear
  View Solution play_arrow

• question_answer87)
  The intercalated discs of__ muscle__.
  A)
  Smooth; provide strong mechanical adhesion and rapid electrical communication done clear
  B)
  Skeletal; are the basis for all voluntary muscle action done clear
  C)
  Skeletal; make possible both fast twitches and slow twitches. done clear
  D)
  Cardiac; provide strong mechanical adhesion and rapid electrical communication. done clear
  View Solution play_arrow

• question_answer88)
  Choose the letter from the figure that most appropriately corresponds to the structure.

  (i) A-band

  (ii) I-band

  (iii) Sarcomere

  (iv) H-zone

  (v) Myosin

  (vi) Actin, Troponin, Tropomyosin

  (vii) Z-line

  A)
  (i) - E, (ii) - D, (iii) - F, (iv) - G, (v) - B, (vi) -C, (vii)-A done clear
  B)
  (i) - E, (ii) - D, (iii) - C, (iv) - G, (v) - B, (vi) -A, (vii)-F done clear
  C)
  (i) - E, (ii) - D, (iii) - F, (iv) - G, (v) - C, (vi) -A, (vii)-B done clear
  D)
  (i) - E, (ii) - D, (iii) - F, (iv) - A, (v) - B, (vi) -C, (vii)-G done clear
  View Solution play_arrow

• question_answer89)
  Sigmoid notch is found in:
  A)
  Tibio-fibula                                done clear
  B)
  Femur done clear
  C)
  Radio-ulna      done clear
  D)
                     Humerus done clear
  View Solution play_arrow

• question_answer90)
  Which of the following statements about the striated muscles is incorrect?

  (i) In the centre of each I-band, is an elastic fibre (Z-line) which bisects it.

  (ii) Thin filaments are firmly attached to the Z-line.

  (iii) M-line is a fibrous membrane in the middle of A-bands.

  (iv) A sarcomere comprises one full A-bands and 2 half I-bands.

  A)
  All of these      done clear
  B)
                     Only (iv) done clear
  C)
  (i) and (ii)       done clear
  D)
                     None of these done clear
  View Solution play_arrow

• question_answer91)
  In the given diagramatic representation of muscle contraction, identify the process marked as 1, 2, 3, 4 and 5.              
  A)
  1-Cross bridge, 2-Cross bridge formation, 3-Breakmg of cross bridge, 4-Sliding (rotation), 5-ATP done clear
  B)
  1-Cross bridge, 2-Cross bridge formation, 3-Sliding / rotation, 4-Breaking of cross bridge, 5-ATP done clear
  C)
  1-Cross bridge, 2-Breaking of cross bridge, 3-Sliding/rotation, 4-Cross bridge formation, 5-AMP done clear
  D)
  1-Cross bridge, 2-Cross bridge formation, 3-Sliding/rotation, 4-ADP, 5-Breaking of cross bridge. done clear
  View Solution play_arrow

• question_answer92)
  Zygomatic arch in Rabbit is formed by:
  A)
  Premaxilla, Maxilla and Palatine done clear
  B)
  Maxilla, Jugal and Squamosal done clear
  C)
  Periotic, Maxilla & Premaxilla done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer93)
  Lower jaw in mammals articulates with a bone called:
  A)
  Jugal                                         done clear
  B)
  Alisphenoid done clear
  C)
  Sqamosal                                  done clear
  D)
  Parietal done clear
  View Solution play_arrow

• question_answer94)
  The given figure shows the diagrammatic cross sectional view of a muscle with their parts marked as 1, 2, 3 and 4. Which part is held together by a common collagenous connective tissue layer?   
  A)
  1                                              done clear
  B)
  2 done clear
  C)
  3                                              done clear
  D)
  4 done clear
  View Solution play_arrow

• question_answer95)
  Put the following phrases in proper order to describe what occurs at the neuromuscular junction to trigger muscle contraction.

  (i) Receptor sites on sarcolemma.

  (ii) Nerve impulse

  (iii) Release of \[C{{a}^{+2}}\] from sarcoplasmic reticulum.

  (iv) The neurotransmitter acetylcholine is released.

  (v) Sarcomere shorten.

  (vi) Synaptic cleft.

  (vii) Spread of impulses over sarcolemma on T-tubules.

  A)
  (ii), (iv), (i), (vi), (vii), (iii), (v) done clear
  B)
  (ii), (iv), (vi), (i), (vii), (iii), (v) done clear
  C)
  (i), (ii), (iii), (iv), (v), (vi), (vii) done clear
  D)
  (vii), (vi), (v), (iv), (iii), (ii), (i) done clear
  View Solution play_arrow

• question_answer96)
  Just as, there are pseudopodia in Amoeba, there are:
  A)
  Teeth in rabbit done clear
  B)
  Suckers upon scolex of tapeworm done clear
  C)
  Legs in cockroach done clear
  D)
  Spicules in Leucosolenia done clear
  View Solution play_arrow

• question_answer97)
  Which of the following statement is not the feature of red muscle fibres?
  A)
  They have plenty of mitochondria. done clear
  B)
  They have high content of myoglobin. done clear
  C)
  They have high amount of sarcoplasmic reticulum. done clear
  D)
  They are called aerobic muscles. done clear
  View Solution play_arrow

• question_answer98)
  Consider the diagram given below and identify the parts labelled as 1,2,3,4, and 5 respectively.
  A)
  Femur, Ilium, Tibia, Pubis and Sacrum done clear
  B)
  Pubis, Tibia, Femur, Ilium and Sacrum done clear
  C)
  Ilium, Femur, Tibia, Pubis and Sacrum done clear
  D)
  Pubis, Femur, Tibia, Ilium and Sacrum done clear
  View Solution play_arrow

• question_answer99)
  A student was given sample of two muscles marked as 1 and 2. When he compared the muscles he found that muscle 1 contains large amount of myoglobin and utilise large amount of stored oxygen for ATP production whereas muscle 2 contains few myoglobin, mitochondria and high sarcoplasmic reticulum. Identify the correct statement regarding the muscle 1 and 2 from the option given below.
  A)
  Both the muscles are called aerobic muscles. done clear
  B)
  Both the muscles are called red fibres and depend on aerobic process for energy. done clear
  C)
  Muscle 1 is called white fibres and whereas muscle 2 depends on aerobic process for energy. done clear
  D)
  Muscle 1 is called red fibres and aerobic muscles whereas muscle 2 is called white fibres and depend on anaerobic process for energy. done clear
  View Solution play_arrow

• question_answer100)
  Locomotory organs in starfishes are:-
  A)
  Parapodia        done clear
  B)
                     Pseudopodia done clear
  C)
  Suckers                                      done clear
  D)
  Tubefeet done clear
  View Solution play_arrow

• question_answer101)
  Match the column-I with column-II and select the correct option.

  	Column-I		Column-II
  A.	Striated appearance of myofibril	I.	Distribution pattern of actin and myosin
  B.	Store house of calcium ions	II.	Sarcoplasmic reticulum
  C.	Energy released from ATP hydrolysis	III.	Helps myosin head to bind to exposed active sites on actin to form a cross bridge
  D.	Globular head of meromyosin	IV.	Active AT Pase enzyme has binding sites for ATP and active sites for actin.

  A)
  A-I;     B-II;      C-III;    D-IV done clear
  B)
  A-III;   B-I;      C-IV;    D-II done clear
  C)
  A-II;    B-I;      C-III;     D-IV done clear
  D)
  A-III;   B-IV;   C-II;      D-I done clear
  View Solution play_arrow

• question_answer102)
  The vertebra which bears the whole weight of the skull is:
  A)
  Atlas                                         done clear
  B)
  Axis done clear
  C)
  Cervical         done clear
  D)
                     Sacral done clear
  View Solution play_arrow

• question_answer103)
  Which of the following statement is incorrect?
  A)
  All movements lead to locomotion. done clear
  B)
  Ciliary movement help in passage of ova through female reproductive tract. done clear
  C)
  Microfilaments are involved in amoeboid movement. done clear
  D)
  In Paramoecium, the cilia help in movement of food through cytopharynx and in locomotion as well. done clear
  View Solution play_arrow

• question_answer104)
  Match column-I with column-II and select the correct answer using the codes given below.

  	Column-I		Column-II
  A.	Cranium/Brainbx	I.	29
  B.	Skull(cranial and facial bones)	II.	8
  C.	Face	III.	14
  D.	Hind limb	IV.	12 pairs
  E.	Ribs	V.	30

  A)
  A-I;     B-II;    C-III;     D-V;    E-IV done clear
  B)
  A-II;    B-I;     C-III;     D-V;    E-IV done clear
  C)
  A-I;     B-II;    C-III;     D-IV;   E-V done clear
  D)
  A-V;   B-IV;   C-III;     D-II;     A-I done clear
  View Solution play_arrow

• question_answer105)
  In the larynx of rabbit, which one of the following is the biggest cartilage?
  A)
  Arytenoid cartilage                      done clear
  B)
  Cricoid cartilage  done clear
  C)
  Thyroid cartilage done clear
  D)
                     Tracheal cartilage done clear
  View Solution play_arrow

• question_answer106)
  Which of the following bones are not found in the human appendicular skeleton?
  A)
  Finger bones                               done clear
  B)
  Upper arm bone done clear
  C)
  Jaw bone                                   done clear
  D)
  Ankle bones done clear
  View Solution play_arrow

• question_answer107)
  Match column-I with column-II and select the correct answer using the codes given below.

  	Column-I		Column-II
  A.	Atlas and Axis	I.	Cartilaginous joint
  B.	Two parietal bones	II.	Fibrous joint
  C.	Two pubic bones	III.	Saddle joint
  D.	First carpal and first metacarpal	IV.	Pivot joint

  A)
  A-II;   B-I                                   done clear
  B)
  B-II;   C-III done clear
  C)
  C-II;    D-III                                done clear
  D)
  D-III;   A-IV done clear
  View Solution play_arrow

• question_answer108)
  Match column-I with column-II and select the correct answer using the codes given below.

  	Column-I		Column-II
  A.	Ribs are attached to the sternum ventrally and to the vertebrae dorsally.	I.	True ribs
  B.	Ribs are attached to sternum through coastal cartilage (hyaline) of 7th rib	II.	False ribs
  C.	Ribs are not attached to sternum	III.	Floating ribs

  A)
  A-I;    B-II;    C-III done clear
  B)
  A-I;    B-III;   C-II done clear
  C)
  A-II;    B-I;     C-III done clear
  D)
  A-III;   B-II;    C-I  done clear
  View Solution play_arrow