NEET Biology Cell - The Unit Of Life Question Bank

done Plasma Membrane Total Questions - 56

• question_answer1)
  Plasma membrane is made up of [MP PMT 1997, 2001; CBSE PMT 2002]
  A)
  A protein layer between two lipid layers done clear
  B)
  A lipid layer between two protein layers done clear
  C)
  A protein, a lipid and a cellulose layer done clear
  D)
  Bimolecular lipid layer surrounded by protein layers done clear
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• question_answer2)
  For cell membrane, name "plasmalemma'' was given by
  A)
  Porter done clear
  B)
  Nageli done clear
  C)
  Cramer done clear
  D)
  J. Q. Plowe done clear
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• question_answer3)
  Which pair of structures are usually found in both plant and animal cells
  A)
  Cell membrane and nucleolus done clear
  B)
  Cell membrane and cell wall done clear
  C)
  Nucleolus and chloroplast done clear
  D)
  Nucleus and cell wall done clear
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• question_answer4)
  Beet root if kept in cold water anthocyanin does not come out due to plasma membrane [BHU 2003]
  A)
  Differentially permeable done clear
  B)
  Impermeable to anthocyanins done clear
  C)
  Permeable to anthocyanins done clear
  D)
  Dead done clear
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• question_answer5)
  Which of the following layer is present nearest to plasma membrane in plant cell [AFMC 2002]
  A)
  Secondary wall done clear
  B)
  Middle lamella done clear
  C)
  Primary wall done clear
  D)
  Tonoplast done clear
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• question_answer6)
  According to Robertson, thickness of lipid zone in the cell membrane ranges from
  A)
  \[\text{10-20}\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  B)
  \[\text{25-35}\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  C)
  \[\text{50-60}\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  D)
  \[\text{35-50}\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  View Solution play_arrow

• question_answer7)
  Lipid molecule in plasma membrane are arranged in [CPMT 2002]
  A)
  Scattered done clear
  B)
  Series done clear
  C)
  Alternate done clear
  D)
  Head parallel done clear
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• question_answer8)
  Phospholipids are [Pb. PMT 2000]
  A)
  Amphipathic done clear
  B)
  Amphibolic done clear
  C)
  Hydrophobic done clear
  D)
  None of these done clear
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• question_answer9)
  Ion carriers are located in [KCET 2000]
  A)
  Nucleus done clear
  B)
  Cell wall done clear
  C)
  Cellular space done clear
  D)
  Plasma membranes done clear
  View Solution play_arrow

• question_answer10)
  The plasma membrane is composed of [MP PMT 1996]
  A)
  Proteins done clear
  B)
  Lipids done clear
  C)
  Carbohydrates done clear
  D)
  Both proteins and lipids done clear
  View Solution play_arrow

• question_answer11)
  Desmosomes are concerned with [CBSE PMT 1995]
  A)
  Cell division done clear
  B)
  Cellular excretion done clear
  C)
  Cytolysis done clear
  D)
  Cell adherence done clear
  View Solution play_arrow

• question_answer12)
  The secretory material is discharged by the golgi vesicles, from the surface of cell membrane by
  A)
  Pinocytosis done clear
  B)
  Endocytosis done clear
  C)
  Reverse pinocytosis done clear
  D)
  Dissolving the cell membrane done clear
  View Solution play_arrow

• question_answer13)
  According to the 'Unit membrane model' the thickness of the cell membrane is about [MP PMT 1994]
  A)
  200 nm done clear
  B)
  7.5 nm done clear
  C)
  150 nm done clear
  D)
  1.0 nm done clear
  View Solution play_arrow

• question_answer14)
  Which of the following does not require carrier molecules during transport through cell membranes [BHU 1994]
  A)
  Simple diffusion done clear
  B)
  Facilitated diffusion done clear
  C)
  Na+ -K+ transport done clear
  D)
  Active transport of sugars and amino acids done clear
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• question_answer15)
  Which of the following structures controls the transport of the material into and out of living cells [NCERT 1978; BHU 1999]
  A)
  Centrosome done clear
  B)
  Cell membrane done clear
  C)
  Cell wall done clear
  D)
  Ribosome done clear
  View Solution play_arrow

• question_answer16)
  Every living cell has a [DPMT 1981]
  A)
  Membrane done clear
  B)
  Food vacuole done clear
  C)
  Chloroplast done clear
  D)
  Cell wall done clear
  View Solution play_arrow

• question_answer17)
  When a cell engulfs or surrounds a particle and forms a vesicle around it, the phenomenon is known as [AMU 1990]
  A)
  Exocytosis done clear
  B)
  Phagocytosis done clear
  C)
  Endocytosis done clear
  D)
  None of these done clear
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• question_answer18)
  The main difference between pinocytosis and phagocytosis is
  A)
  Taking in of fluid substances and engulfing of food material and foreign bodies done clear
  B)
  Taking in of small and large particles respectively done clear
  C)
  Taking in of small amount of liquid and large volume of liquids done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer19)
  Who proposed the concept of unit membrane for tripartite structure
  A)
  Davson and Deniell done clear
  B)
  Robertson done clear
  C)
  Sanger and Singer done clear
  D)
  Scifriz done clear
  View Solution play_arrow

• question_answer20)
  Which one of the following is present outside the plasma membrane but inside the cell wall
  A)
  Sphaerosome done clear
  B)
  Peroxisome done clear
  C)
  Lomasome done clear
  D)
  Golgi body done clear
  View Solution play_arrow

• question_answer21)
  Which one enzyme of plasma membrane gets inactivated in the absence of lipids
  A)
  ATPase done clear
  B)
  Alkaline phosphatase done clear
  C)
  Acid phosphomonoesterase done clear
  D)
  RNAase done clear
  View Solution play_arrow

• question_answer22)
  Which one of the following is not present in plasma membrane
  A)
  Phospholipids done clear
  B)
  Albumins done clear
  C)
  Oligosaccharides done clear
  D)
  Spectrins done clear
  View Solution play_arrow

• question_answer23)
  Thickness of bimolecular lipid layer is generally
  A)
  \[\text{20 }\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  B)
  \[\text{30 }\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  C)
  \[\text{40 }\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  D)
  \[\text{60 }\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  View Solution play_arrow

• question_answer24)
  Bulk drinking of fluid by cells is termed as [CBSE PMT 1993; CPMT 2000]
  A)
  Phagocytosis done clear
  B)
  Pinocytosis done clear
  C)
  Cyclosis done clear
  D)
  Osmosis done clear
  View Solution play_arrow

• question_answer25)
  Size of molecules that can pass through plasma membrane is [AMU 1991]
  A)
  \[\text{1-15 }\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  B)
  \[\text{8-10 }\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  C)
  \[\text{10-13}\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  D)
  \[\text{15-75}\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  View Solution play_arrow

• question_answer26)
  The process of cell eating is called [KCET 2000]
  A)
  Pinocytosis done clear
  B)
  Phagocytosis done clear
  C)
  Endocytosis done clear
  D)
  Exocytosis done clear
  View Solution play_arrow

• question_answer27)
  Which one statement regarding plasma membrane is correct
  A)
  Its outer and inner layer are electron dense while middle layer is electron transparent done clear
  B)
  Its outer and middle layer are electron transparent while inner layer is electron dense done clear
  C)
  Its outer and inner layer are electron transparent while middle one is electron dense done clear
  D)
  All layers are electron dense done clear
  View Solution play_arrow

• question_answer28)
  One of the fundamental characteristic of cell membrane is [DPMT 1993]
  A)
  Amino acid regulation done clear
  B)
  Fat regulation done clear
  C)
  Glucose regulation done clear
  D)
  Ion regulation done clear
  View Solution play_arrow

• question_answer29)
  According to mosaic model, plasma membrane is made up of [CBSE PMT 1988; DPMT 1982]
  A)
  Cellulose and hemicellulose done clear
  B)
  Phospholipid and integrate protein done clear
  C)
  Phospholipid, extrinsic and intrinsic protein done clear
  D)
  Phospholipid and hemicellulose done clear
  View Solution play_arrow

• question_answer30)
  Nature of plasma membrane is
  A)
  Permeable done clear
  B)
  Semipermeable done clear
  C)
  Impermeable done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer31)
  Singer and Nicholson's model of plasma membrane differs from Robertson's model in the [AIIMS 1984]
  A)
  Number of lipid layers done clear
  B)
  Arrangement of lipid layers done clear
  C)
  Arrangement of proteins done clear
  D)
  Absence of protein in Singer and Nicholson's model done clear
  View Solution play_arrow

• question_answer32)
  Desmosomes or Tonofibrils are
  A)
  Small particles done clear
  B)
  Another name of golgi complex done clear
  C)
  Formed in cytoplasm by the union of plasma membrane done clear
  D)
  Ribosomes done clear
  View Solution play_arrow

• question_answer33)
  Which is the latest model that is proposed to explain the structure of plasma membrane [DPMT 1981; BHU 2001; CBSE PMT 2002; BVP 2003]
  A)
  Fluid mosaic model done clear
  B)
  Molecular model done clear
  C)
  Unit membrane model done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer34)
  Kavanau's lipid pillar model cannot explain
  A)
  Passive transport done clear
  B)
  Active transport done clear
  C)
  Phagocytosis done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer35)
  Cell membrane carbohydrates participate in
  A)
  Transporting substances across the membrane done clear
  B)
  Cell to cell recognization done clear
  C)
  Attaching the membrane to cytoskeleton done clear
  D)
  Cell adhesion done clear
  View Solution play_arrow

• question_answer36)
  Unit membrane is made of [DPMT 1992]
  A)
  Lipoproteins done clear
  B)
  Cellulose done clear
  C)
  Phospholipids done clear
  D)
  Phosphoproteins done clear
  View Solution play_arrow

• question_answer37)
  Membrane proteins are held in the bilayer mainly by
  A)
  Hydrophobic attraction done clear
  B)
  Hydrophilic attraction done clear
  C)
  Covalent bonds done clear
  D)
  Ionic bonds done clear
  View Solution play_arrow

• question_answer38)
  Thickness of plasma membrane is [MP PMT 2003]
  A)
  \[\text{10}\overset{\text{o}}{\mathop{\text{A}}}\,\,\,\text{to}\,\,\text{30}\overset{\text{o}}{\mathop{\text{A}}}\,\]  done clear
  B)
  \[\text{30}\overset{\text{o}}{\mathop{\text{A}}}\,\,\,\text{to}\,\,\text{50}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  C)
  \[\text{50}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\,\,\text{to}\,\,\text{70}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  D)
  \[\text{70}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\,\,\text{to}\,\,\text{100}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  View Solution play_arrow

• question_answer39)
  Who proposed "fluid mosaic model" for plasma membrane [RPMT 1999; BHU 2000, 01; Orissa JEE 2004; Pb. PMT 2004]
  A)
  C. Cramer and C. Naegeli done clear
  B)
  Singer and Nicholson done clear
  C)
  Denielli and Davson done clear
  D)
  J. D. Robertson done clear
  View Solution play_arrow

• question_answer40)
  Which of the following constituent of biological membrane [CPMT 1987; MP PMT 2002, 03; AIEEE 2004]
  A)
  Phosphoprotein done clear
  B)
  Protein and Phospholipid done clear
  C)
  Phospholipids done clear
  D)
  Cellulose done clear
  View Solution play_arrow

• question_answer41)
  Which one of the following activator remains attached with ATP in plasma membrane
  A)
  \[\text{M}{{\text{g}}^{++}}\] done clear
  B)
  \[C{{a}^{++}}\] done clear
  C)
  \[{{K}^{+}}\] done clear
  D)
  \[N{{a}^{+}}\] done clear
  View Solution play_arrow

• question_answer42)
  Pinocytosis and phagocytosis are absent in
  A)
  Prokaryotic cells done clear
  B)
  Eukaryotic animal cells done clear
  C)
  Eukaryotic plant cells done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer43)
  Biological membranes are composed of
  A)
  40% proteins and 60% lipids done clear
  B)
  50% proteins and 50% lipids done clear
  C)
  70% proteins and 30% lipids done clear
  D)
  60% proteins and 40% lipids done clear
  View Solution play_arrow

• question_answer44)
  Active transport is affected by
  A)
  Cold done clear
  B)
  Cynide done clear
  C)
  Absence of\[{{O}_{2}}\] done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer45)
  In Danielli and Davson's model polar end is represented by
  A)
  Circular done clear
  B)
  Rod done clear
  C)
  Thread done clear
  D)
  Ribbon done clear
  View Solution play_arrow

• question_answer46)
  Ephagy refers to
  A)
  Removal of metabolic waste by exocytosis done clear
  B)
  Removal of metabolic waste by endocytosis done clear
  C)
  Exudation of secretory products done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer47)
  Pinocytosis and phagocytosis are concerned with
  A)
  Cell wall done clear
  B)
  Protoplasm done clear
  C)
  Nucleus done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer48)
  Carbohydrates are present in the plasmalemma in the form of [BHU 1986, 91]
  A)
  Starch done clear
  B)
  Cellulose done clear
  C)
  Hemicellulose done clear
  D)
  Phospholipids (glycolipids) and phosphoproteins (glycoproteins) done clear
  View Solution play_arrow

• question_answer49)
  Lomasomes are found in [BVP 2000]
  A)
  Algal cell done clear
  B)
  Fungal cell done clear
  C)
  Yeast done clear
  D)
  E. coli done clear
  View Solution play_arrow

• question_answer50)
  Desmosome is modification of [MP PMT 2004]
  A)
  Plasma membrane done clear
  B)
  Nucleous done clear
  C)
  Golgi bodies done clear
  D)
  ER-Nucleus complex done clear
  View Solution play_arrow

• question_answer51)
  Single membrane bound organelles are [DPMT 2004]
  A)
  Lysosome done clear
  B)
  Sphaerosome done clear
  C)
  Glyoxysome done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer52)
  The non-membranous organelles are [DPMT 2004]
  A)
  Centrioles done clear
  B)
  Ribosomes done clear
  C)
  Nucleolus done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer53)
  Plasma membrane helps in [J&K CET 2005]
  A)
  Transportation of only water in and out of cell done clear
  B)
  Protein sythesis done clear
  C)
  Osmoregulation done clear
  D)
  Nucleic acid synthesis done clear
  View Solution play_arrow

• question_answer54)
  Which of the following controls permeability [Orissa JEE 2005]
  A)
  Cell membrane done clear
  B)
  Cell wall done clear
  C)
  Protoplasm done clear
  D)
  Cytoplasm done clear
  View Solution play_arrow

• question_answer55)
  According to widely accepted "Fluid mosaic model" cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements is incorrect [CBSE PMT 2005]
  A)
  Proteins in cell membranes can travel with in the lipid bilayer done clear
  B)
  Proteins can also undergo flip-flap movements in the lipid bilayer done clear
  C)
  Proteins can remain confined within certain domains of the membrane done clear
  D)
  Many proteins remain completely embedded within the lipid bilayer done clear
  View Solution play_arrow

• question_answer56)
  Membrane protein [AMU 2005]
  A)
  Works as recipient for informal moelcules done clear
  B)
  Works as recipient for transportation done clear
  C)
  Helps in cell recognisation done clear
  D)
  Does all the above works done clear
  View Solution play_arrow