NEET Biology The Living World / जीव जगत Question Bank

done Understanding Life Total Questions - 73

• question_answer1)
  Which of the following are characteristics of living things
  A)
             They reproduce done clear
  B)
             They acquire energy done clear
  C)
             They respond to stimuli done clear
  D)
             All of the above done clear
  View Solution play_arrow

• question_answer2)
  Organisms which display properties of both living and nonliving                                  [AFMC 2000]
  A)
             Viruses                                      done clear
  B)
             Diatoms done clear
  C)
             Lichens done clear
  D)
             Bacteria done clear
  View Solution play_arrow

• question_answer3)
  The highest level of organization among the following is
  A)
             Ecosystems done clear
  B)
             Iandscapes done clear
  C)
             Populations done clear
  D)
             communities done clear
  View Solution play_arrow

• question_answer4)
  The lowest level of organization among the following is
  A)
             Populations done clear
  B)
             Landscapes done clear
  C)
             Ecosystems done clear
  D)
             Communities done clear
  View Solution play_arrow

• question_answer5)
  The smallest unit of an element that retains all the properties of the element is           
  A)
             Atom done clear
  B)
             Molecule done clear
  C)
             Electron done clear
  D)
             Compound done clear
  View Solution play_arrow

• question_answer6)
  In atoms, protons and neutrons are present
  A)
             Outside the nucleus                 done clear
  B)
             Only in the nucleus done clear
  C)
             In the electron shells done clear
  D)
             Inside and outside nucleus done clear
  View Solution play_arrow

• question_answer7)
  Which of these particles determine the chemical properties of an atom        
  A)
             Protons done clear
  B)
             Neutrons done clear
  C)
             Electrons done clear
  D)
             None of these done clear
  View Solution play_arrow

• question_answer8)
  Which of the following substances does not play a role in normal human physiology
  A)
             Calcium done clear
  B)
             Silver done clear
  C)
             Phosphorus done clear
  D)
             Sulphur done clear
  View Solution play_arrow

• question_answer9)
  The ionization of a sodium atom to produce \[N{{a}^{+}}\] is an example of         
  A)
             Oxidation done clear
  B)
             Reduction done clear
  C)
             Catabolism done clear
  D)
             Anabolism done clear
  View Solution play_arrow

• question_answer10)
  Which of the following is a trace element required only in small amounts by most living things
  A)
             Oxygen done clear
  B)
             Iron done clear
  C)
             Nitrogen done clear
  D)
             Hydrogen done clear
  View Solution play_arrow

• question_answer11)
  Your body contains the smallest amount of which of the following
  A)
             Carbon done clear
  B)
             Nitrogen done clear
  C)
             Oxygen done clear
  D)
             Phosphorus done clear
  View Solution play_arrow

• question_answer12)
  Role of molybdenum is                      [JIPMER 2002; AFMC 2002]
  A)
             Nitrogen fixation done clear
  B)
             Carbon assimilation done clear
  C)
             Flowering induction done clear
  D)
             Chromosome contraction done clear
  View Solution play_arrow

• question_answer13)
  Atoms combine in chemical reactions to form
  A)
             Elements done clear
  B)
             Energy done clear
  C)
             Compounds done clear
  D)
             Specific heat done clear
  View Solution play_arrow

• question_answer14)
  Atoms share electrons unequally in a/an......bond                             
  A)
             Ionic done clear
  B)
             Hydrogen done clear
  C)
             Nonpolar covalent done clear
  D)
             Polar covalent done clear
  View Solution play_arrow

• question_answer15)
  Maximum energy is required to break     
  A)
             Ionic bonds done clear
  B)
             Covalent bonds done clear
  C)
             Hydrogen bonds                      done clear
  D)
             Vander Waals done clear
  View Solution play_arrow

• question_answer16)
  What type of energy is present in a covalent bond                            
  A)
             Heat energy done clear
  B)
             Light energy done clear
  C)
             Potential energy done clear
  D)
             Kinetic energy done clear
  View Solution play_arrow

• question_answer17)
  Where are hydrogen bonds important to life
  A)
             In ionic substance done clear
  B)
             Between water molecules done clear
  C)
             Between hydrogen atoms done clear
  D)
             All of the above done clear
  View Solution play_arrow

• question_answer18)
  A solution that resists changes in pH is a/an                                       
  A)
             Buffer done clear
  B)
             Catalyst done clear
  C)
             Reducing agent done clear
  D)
             Oxidizing agent done clear
  View Solution play_arrow

• question_answer19)
  Of the following choices, the pH of the least acidic solution is          
  A)
             6.0 done clear
  B)
             4.5 done clear
  C)
             2.3 done clear
  D)
             1.0 done clear
  View Solution play_arrow

• question_answer20)
  The most abundant compound in living cells is                                 
  A)
             Carbon done clear
  B)
             Water done clear
  C)
             Hydrogen done clear
  D)
             Oxygen done clear
  View Solution play_arrow

• question_answer21)
  A water molecule shows                    
  A)
             Polarity done clear
  B)
             Solvency done clear
  C)
             Heat resistance done clear
  D)
             All of these done clear
  View Solution play_arrow

• question_answer22)
  Hydrolysis is a...............reaction
  A)
             Cleavage done clear
  B)
             Electron transfer done clear
  C)
             Condensation done clear
  D)
             Rearrangement done clear
  View Solution play_arrow

• question_answer23)
  The smallest particle of water is                
  A)
             An atom done clear
  B)
             A crystal done clear
  C)
             A molecule done clear
  D)
             An element done clear
  View Solution play_arrow

• question_answer24)
  The most immediate source of energy  for living cells is generally in the form of         
  A)
             Lipids done clear
  B)
             Proteins done clear
  C)
             Vitamins done clear
  D)
             Carbohydrates done clear
  View Solution play_arrow

• question_answer25)
  Which one is hexose sugar                                          [BCECE 2001]
  A)
             Mannose done clear
  B)
             Galactose done clear
  C)
             Both  and done clear
  D)
             Cellulose done clear
  View Solution play_arrow

• question_answer26)
  Maltose, lactose and soucrose are             [BHU 2001]
  A)
             Disaccharides done clear
  B)
             Trisaccharides done clear
  C)
             Monosaccharides done clear
  D)
             Polysaccharides done clear
  View Solution play_arrow

• question_answer27)
  Glycogen is most structurally similar to   
  A)
             Glucose done clear
  B)
             Starch done clear
  C)
             Maltose done clear
  D)
             Cellulose done clear
  View Solution play_arrow

• question_answer28)
  Which of the following is produced only by plants                            
  A)
             Starch done clear
  B)
             Glycogen done clear
  C)
             Cholesterol done clear
  D)
             Triglycerides done clear
  View Solution play_arrow

• question_answer29)
  Chitin is found in                                                        [JKCMEE 2002]
  A)
             Mollusca done clear
  B)
             Coelenterata done clear
  C)
             Arthropoda done clear
  D)
             Echinodermata done clear
  View Solution play_arrow

• question_answer30)
  Chitin is a structural polysaccharide and is polymerised form                         [AMU 2001]
  A)
             Glucose done clear
  B)
             Ribose done clear
  C)
             Deoxyribose done clear
  D)
             None of these done clear
  View Solution play_arrow

• question_answer31)
  Which one of the following is an example of glycoprotein                                              [AMU 2001]
  A)
             Mucin done clear
  B)
             Lecithin done clear
  C)
             Casein done clear
  D)
             Haemoglobin done clear
  View Solution play_arrow

• question_answer32)
  Among the energy values or nutrients, 9.3 calories is that of                                           [JIPMER 2002]
  A)
             Fats done clear
  B)
             Proteins done clear
  C)
             Vitamins done clear
  D)
             Carbohydrates done clear
  View Solution play_arrow

• question_answer33)
  Lipids are generally
  A)
             A high energy source done clear
  B)
             Hydrophobic done clear
  C)
             Composed of fatty acids done clear
  D)
             All of the above done clear
  View Solution play_arrow

• question_answer34)
  Predominant form of lipid present in biomembranes                                       [AMU 2001]
  A)
             Free fatty acids done clear
  B)
             Cholesterol done clear
  C)
             Triacylglycerols done clear
  D)
             Phospholipids done clear
  View Solution play_arrow

• question_answer35)
  The basis of life is                                                           [AFMC 2002]
  A)
             Lipid done clear
  B)
             Protein done clear
  C)
             Nucleic acid done clear
  D)
             Nucleoprotein done clear
  View Solution play_arrow

• question_answer36)
  Nucleoside is                                                                 [BCECE 2001]
  A)
             Sugar + base done clear
  B)
             Phosphoric acid + base done clear
  C)
             Polymer of nucleic acid           done clear
  D)
             Phosphoric acid + sugar + base done clear
  View Solution play_arrow

• question_answer37)
  Nucleotides are                                   
  A)
             Building blocks of DNA done clear
  B)
             Source of immediate energy done clear
  C)
             Readily present in cell membrane done clear
  D)
             Small enclosures inside the nucleus done clear
  View Solution play_arrow

• question_answer38)
  Nucleotides include                           
  A)
             RNA subunits done clear
  B)
             ATP done clear
  C)
             DNA subunits done clear
  D)
             All of the above done clear
  View Solution play_arrow

• question_answer39)
  RNA differs from DNA in having               [Pb. PMT 2000]
  A)
             Uracil done clear
  B)
             Adenine done clear
  C)
             Cytosine done clear
  D)
             Thymine done clear
  View Solution play_arrow

• question_answer40)
  Energy is utilized by cells for             
  A)
             Reproduction done clear
  B)
             Growth done clear
  C)
             Biochemical activities done clear
  D)
             All of these done clear
  View Solution play_arrow

• question_answer41)
  Which of the cellular activities require energy                                     
  A)
             Growth done clear
  B)
             Muscle contraction done clear
  C)
             Active transport done clear
  D)
             All of these done clear
  View Solution play_arrow

• question_answer42)
  There is an exchange of materials and energy between living organisms and their surrounding. Such a system is called
  A)
             Open system done clear
  B)
             Closed system done clear
  C)
             Isolated system done clear
  D)
             All of these done clear
  View Solution play_arrow

• question_answer43)
  The process in which excess energy is lost by light waves is called                                [JIPMER 2002]
  A)
             Photolysis done clear
  B)
             Fluorescence done clear
  C)
             Photo-oxidation done clear
  D)
             Photophosphorylation done clear
  View Solution play_arrow

• question_answer44)
  Free energy liberated during oxidation per mole of palmitic acid is \[\Delta G\] (cal/mole)         
  A)
             ? 4600 done clear
  B)
             ? 326,000 done clear
  C)
             ? 686,000 done clear
  D)
             ? 2,338,000 done clear
  View Solution play_arrow

• question_answer45)
  In the organisms which show bioluminescence, the chemical energy of cell is converted into    [AFMC 2002]
  A)
             Light energy done clear
  B)
             Thermal energy done clear
  C)
             Radiant energy done clear
  D)
             Mechanical energy done clear
  View Solution play_arrow

• question_answer46)
  The energy transformation in the nervous system is                                                         [Kerala PMT 2002]
  A)
             Chemical to radiant done clear
  B)
             Chemical to electrical done clear
  C)
             Chemical to mechanical done clear
  D)
             Mechanical to radiant done clear
  View Solution play_arrow

• question_answer47)
  The total solar energy converted to biomass on earth amounts                                      [Assam CEE 2001]
  A)
             2% done clear
  B)
             0.2% done clear
  C)
             0.02%                                       done clear
  D)
             20% done clear
  View Solution play_arrow

• question_answer48)
  A coconut high in a palm tree has........owing to its location             
  A)
             Free energy done clear
  B)
             Kinetic energy done clear
  C)
             Activation energy done clear
  D)
             Potential energy done clear
  View Solution play_arrow

• question_answer49)
  The amount of usable energy that is available for doing work in a system is
  A)
             Mechanical energy done clear
  B)
             Free energy done clear
  C)
             Spontaneous energy done clear
  D)
             Light energy done clear
  View Solution play_arrow

• question_answer50)
  The total heat content of as system is        [KCET 2002]
  A)
             Entropy done clear
  B)
             Free energy done clear
  C)
             Enthalpy done clear
  D)
             Kinetic energy done clear
  View Solution play_arrow

• question_answer51)
  According to the first law of thermodynamics, the total amount of energy in the universe          
  A)
             Is constant done clear
  B)
             Varies up and down done clear
  C)
             Is always increasing done clear
  D)
             Is always decreasing done clear
  View Solution play_arrow

• question_answer52)
  What is predicted by the second law of thermodynamics
  A)
             Energy is always decreasing done clear
  B)
             Disorder cannot be created or destroyed done clear
  C)
             All potential energy exists as chemical energy done clear
  D)
             Systems always tend toward greater states of disorder done clear
  View Solution play_arrow

• question_answer53)
  Metabolism comprises                       
  A)
             Digestion of food done clear
  B)
             Elimination of wastes done clear
  C)
             Exchange of gases done clear
  D)
             Various energy exchanges in cell done clear
  View Solution play_arrow

• question_answer54)
  All  the synthesis reactions in the body form a division of metabolism called              
  A)
             Anabolism done clear
  B)
             Catabolism done clear
  C)
             Chemical reaction done clear
  D)
             None of these done clear
  View Solution play_arrow

• question_answer55)
    Anabolism is                                                                      [BHU 2000]
  A)
             Endergonic process done clear
  B)
             Exergonic process done clear
  C)
             Bidirectional process done clear
  D)
             Destructive process done clear
  View Solution play_arrow

• question_answer56)
  In ATP, the high energy bond is the one which links                                       [KCET 2002]
  A)
             Adenine with ribose done clear
  B)
             Ribose with phosphate done clear
  C)
             Adenine with phosphate done clear
  D)
             Phosphate to phosphate done clear
  View Solution play_arrow

• question_answer57)
  High energy phosphate bond is present in                   [AMU 2001]
  A)
             ADP done clear
  B)
             Adenosine done clear
  C)
             AMP done clear
  D)
             Cyclic AMP done clear
  View Solution play_arrow

• question_answer58)
  Maintenance of internal favourable conditions, despite changes in external environment is [AFMC 1999; AMU 2000; DPMT 2001; Kerala PMT 2001, 03]
  A)
             Entropy done clear
  B)
             Steady state done clear
  C)
             Enthalpy done clear
  D)
             Homeostasis done clear
  View Solution play_arrow

• question_answer59)
  Plants differ from animals in having [St. Johns MC 2002]
  A)
             Definite lifespan done clear
  B)
             Localized growth done clear
  C)
             Indefinite lifespan done clear
  D)
             Localized growth and indefinite lifespan done clear
  View Solution play_arrow

• question_answer60)
  Which of the following is a unifying concept of biology
  A)
             Diversity done clear
  B)
             Circulation done clear
  C)
             Movement done clear
  D)
             Evolution done clear
  View Solution play_arrow

• question_answer61)
  Cause of mimicry is                                                [CBSE PMT 2002]
  A)
             Isolation done clear
  B)
             Attack done clear
  C)
             Protection done clear
  D)
             Both (b) and (c) done clear
  View Solution play_arrow

• question_answer62)
  Melanin protects from                                            [CBSE PMT 2002]
  A)
             UV rays done clear
  B)
             X-rays done clear
  C)
             Visible rays done clear
  D)
             Infrared rays done clear
  View Solution play_arrow

• question_answer63)
  Reproduction of immature or larval stage of animals caused by the acceleration of maturation is called
  A)
             Cladogenesis done clear
  B)
             Paedogenesis done clear
  C)
             Morphogenesis done clear
  D)
             Parthenogenesis done clear
  View Solution play_arrow

• question_answer64)
  Bones of birds are                              
  A)
             Hollow done clear
  B)
             Penumatic done clear
  C)
             Both (a) and (b) done clear
  D)
             None done clear
  View Solution play_arrow

• question_answer65)
  Which is not aerial adaptation of birds     [RPMT 2001]
  A)
             Gizzard done clear
  B)
             Single ovary done clear
  C)
             Pneumatic bone done clear
  D)
             Keeled sternum done clear
  View Solution play_arrow

• question_answer66)
  Which of the following is the main adaptation for a plant to survive in xerophytic condition    [Haryana PMT 2000]
  A)
             Spines done clear
  B)
             No stomata done clear
  C)
             Stipular leaves done clear
  D)
             None of the above done clear
  View Solution play_arrow

• question_answer67)
  Some plants having pleasant odour and attractive colours for                                        [Haryana PMT 2000]
  A)
             Hydrophily done clear
  B)
             Anemophily done clear
  C)
             Entomophily done clear
  D)
             Any of the above done clear
  View Solution play_arrow

• question_answer68)
  Which of the following chemical characteristics is not common to all living beings                         [Manipal 2003]
  A)
             Type of protein present in the body done clear
  B)
             Similar triple code for amino acids done clear
  C)
             Energy is stored by high phosphate bonds done clear
  D)
             Ribosomes are the sites of protien synthesis done clear
  View Solution play_arrow

• question_answer69)
  The most abundant element present in the plants is                                                        [CBSE PMT 2004]
  A)
             Iron done clear
  B)
             Carbon done clear
  C)
             Nitrogen done clear
  D)
             Manganese done clear
  View Solution play_arrow

• question_answer70)
  Carbohydrates, the most abundant biomolecules on earth, are produced by                                               [CBSE PMT 2005]
  A)
             Some bacteria, algae and green plant cells done clear
  B)
             Fungi, algae and green plant cells done clear
  C)
             All bacteria, fungi and algae done clear
  D)
             Viruses, fungi and bacteria done clear
  View Solution play_arrow

• question_answer71)
  In ATP high energy bond is present  [CPMT 2005]
  A)
             Between nucleoside and phosphate group done clear
  B)
             Between sugar and phosphate group done clear
  C)
             Between base and phosphate group done clear
  D)
             None of these done clear
  View Solution play_arrow

• question_answer72)
  The type of linkage present in carbohydrates is          [CPMT 2005]
  A)
             Peptide done clear
  B)
             Glycosidic done clear
  C)
             Amide done clear
  D)
             Phosphate bonds done clear
  View Solution play_arrow

• question_answer73)
  Animals spending winter in dormant conditions is referred as under                                           [J & K 2005]
  A)
             Hibernation done clear
  B)
             Aestivation done clear
  C)
             Mimicry done clear
  D)
             Camouflage done clear
  View Solution play_arrow