Cell: The Unit of Life

NPP PRACTICE PAPER 13

Topic: Previous Year Questions (2021 – 1988)

BY:- Baibhav Kumar [NEET BIOLOGY EXPERT]

KUMARLIVE

The Perfect 360 Equation = NPP + NOTES + NCERT (3N Factor)

1. Which of the following is an incorrect statement ?

a. Mature sieve tube elements possess a conspicuous nucleus and usual cytoplasmic organelles

b. Microbodies are present both in plant and animal cells

c. The perinuclear space forms a barrier between the materials present inside the nucleus and that of the cytoplasm

d. Nuclear pores act as passages for proteins and RNA molecules in both directions between nucleus and cytoplasm

(NEET 2021)

2.When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as :

a. Metacentric

b. Telocentric

c. Sub – metacentric

d. Acrocentric

(NEET 2021)

3. Match List – I with List – II

(NEET 2021)

List – I List – II

a. Cristae (i) Primary constriction in chromosome

b. Thylakoids (ii) Disc – shaped sacs in Golgi apparatus

c. Centromere (iii) Infoldings in mitochondria

d. Cisternae (iv) Flattened membranous sacs in stroma of plastids

Choose the correct from the options given below.

A B C D

1. IV III II I

2. I IV III II

3. III IV I II

4. II III IV I

4. The organelles that are included in the endomembrane system are :

a. Endoplasmic reticulum, Mitochondria, Ribosomes and Lysosomes

b. Endoplasmic reticulum, Golgi complex, Lysosomes and Vacuoles

c. Golgi complex, Mitochondria, Ribosomes and Lysosomes

d. Golgi complex, Endoplasmic reticulum, Mitochondria and Lysosomes

(NEET 2021)

1. The concept of “Omnis cellula-e-cellula” regarding cell division was first proposed by

a. Aristotle

b. Rudolf Virchow

c. Theodore Schwann

d. Schleiden

(NEET 2020)

2. Which of the following statements about inclusion bodies is incorrect ?

a. They are not bound by any membrane

b. These are involved in ingestion of food particles

c. They life free in the cytoplasm

d. These represent reserve material in cytoplasm

(NEET 2020)

3. Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells ?

a. Endoplasmic reticulum

b. Peroxisomes

c. Golgi bodies

d. Polysomes

(NEET 2020)

1.Which of the following statements is not correct ?

a) Lysosomes are formed by the process of packaging in the endoplasmic reticulum

b) Lysosomes have numerous hydrolytic enzymes

c) The hydrolytic enzymes of lysosomes are active under acidic pH

d) Lysosomes are membrane – bound structures

(NEET 2019)

2.The concept of “Omnis cellula-e- cellula “ regarding cell division was first proposed by

a) Aristotle

b) Rudolf Virchow

c) Theodore Schwann

d) Schlieden

(NEET 2019)

3.Which of the following statements regarding mitochondria is incorrect ?

a) Mitochondrial matrix contains single circular DNA molecule and ribosomes

b) Outer membrane is permeable to monomers of carbohydrates, fasts and proteins

c) Enzymes of electron transport are embedded in outer membrane

d) Inner membrane is convoluted with infoldings

(NEET 2019)

4.The shorter and longer arms of a submetacentric chromosome are referred to as

a) m-arm and n-arm respectively

b) s-arm and i-arm respectively

c) p-arm and q-arm respectively

d) q-arm and p-arm respectively

(NEET 2019)

5.Which of the following pairs of organelles does not contain DNA?

a) Nuclear envelope and Mitochondria

b) Mitochondria and Lysosomes

c) Chloroplast and Vacuoles

d) Lysosomes and Vacuoles

(NEET 2019)

6.Match the column I with Column II

Column I Column II

(A). Golgi apparatus (i) Synthesis of protein

(B) Lysosomes (ii) Trap waste and excretory products

(C) Vacuoles (iii) Formation of glycoproteins and glycolipids

(D) Ribosomes (iv) Digesting biomolecules

A B C D

a. Iii Iv Ii I

b. Iv Iii I Ii

c. Iii Ii Iv I

d. I Ii Iv Iii

(Odisha NEET 2019)

7.Which of the following is true for nucleolus?

a) Larger nucleoli are present in dividing cells

b) It is a membrane-bound structure

c) It takes part in spindle formation

d) It is a site for active ribosomal RNA synthesis

(NEET 2018)

8.The Golgi complex participates in

a) Fatty acid breakdown

b) Formation of secretory vesicles

c) Respiration in bacteria

d) Activation of amino acid

(NEET 2018)

9.Which of the following events does not occur in rough endoplasmic reticulum ?

a) Protein folding

b) Protein glycosylation

c) Cleavage of single peptide

d) Phospholipid synthesis

(NEET 2018)

10. Select the incorrect match

a) Lamp brush chromosomes – diplotene bivalents

b) Allosomes – Sex chromosomes

c) Sub-metacentric chromosomes – L-shaped chromosomes

d) Polytene chromosomes – Oocytes of amphibians

(NEET 2018)

11.Which of the following cell organelles is responsible for extracting energy from carbohydrates to from ATP ?

a) Ribosome

b) Chloroplast

c) Mitochondrion

d) Lysosome

(NEET 2017)

12.Select the mismatch

a) Gas Vacuoles – Green bacteria

b) Large central vacuoles – Animal cells

c) Protists – Eukaryotes

d) Methanogens – Prokaryotes

(NEET –II 2016)

13. Select the wrong statement

a) Bacterial cell wall is made up of peptidoglycan

b) Pili and fimbriae are mainly involved in motility of bacterial cells

c) Cyanobacteria lack flagellated cells

d) Mycoplasma is a wall-less microorganisms

(NEET-II 2016)

14.A cell organelle containing hydrolytic enzymes is

a) Lysosome

b) Microsome

c) Ribosome

d) Mesosome

(NEET- II 2016)

15.Mitochondira and chloroplast are

A. Semi-autonomous organelles

B. Formed by division of pre-existing organelles and the contain DNA but lack protein synthesizing machinery

Which one of the following options is correct ?

a) (A) is true but (B) is false

b) Both (A) and (B) are false

c) Both (A) and (B) are correct

d) (B) is true but (A) is false

(NEET- I 2016)

16.Microtubules are the constituents of

a) Centrioles, spindle fibres and chromatin

b) Centrosome, nucleosome and centrioles

c) Cilia, flagella and peroxisomes

d) Spindle fibres, centrioles and cilia

(NEET –I 2016)

17.Which one of the following cell organelles is enclosed by a single membrane ?

a) Lysosomes

b) Nuclei

c) Mitochondria

d) Chloroplasts

(NEET –I 2016)

18.Water soluble pigments found in plant cell vacuoles are

a) Carotenoids

b) Anthocyanins

c) Xanthophyll's

d) Chlorophylls

(NEET-I 2016)

19.Match the columns and identify the correct option

Column I Column II

A. Thylakoid (i) disc-shaped sacs in Golgi apparatus

B. Cristae (ii) Condensed structure of DNA

C. Cisternae (iii) Flat membranous sacs in stroma

D. Chromatin (iv) Infoldings in mitochondria

A B C D

a. Iii I Iv Ii

b. Iii Iv Ii I

c. Iv Iii I Ii

d. Iii Iv I Ii

( 2015)

20. Which of the following structures is not found in a prokaryotic cell ?

a) Mesosome

b) Plasma membrane

c) Nuclear envelope

d) Ribosome

( 2015)

21. Cellular organelles with membranes are

a) Endoplasmic reticulum, ribosomes and nuclei

b) Lysosomes, Golgi apparatus and mitochondria

c) Nuclei, ribosomes and mitochondria

d) Chromosomes, ribosomes and endoplasmic reticulum

(2015)

22.Which of the following are not membrane bound ?

a) Lysosomes

b) Mesosomes

c) Vacuoles

d) Ribosomes

(2015)

23.DNA is not present in

a) Nucleus

b) Mitochondria

c) Chloroplast

d) Ribosomes

( 2015 Cancelled )

24. Nuclear envelope is a derivative of

a) Microtubules

b) Rough endoplasmic reticulum

c) Smooth endoplasmic reticulum

d) Membrane of Golgi complex

(Cancelled 2015)

25.The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are

a) Stroma lamellae

b) Stroma

c) Cristae

d) Grana

(Cancelled 2015)

26. Select the correct matching in the following pairs .

a) Rough ER – Synthesis of glycogen

b) Rough ER – Oxidation of fatty acids

c) Smooth ER – Oxidation of phospholipids

d) Smooth ER- Synthesis of lipids

(Cancelled 2015)

27. The chromosomes in which centromere is situated close to one end are

a) Telocentric

b) Sub-metacentric

c) Metacentric

d) Acrocentric

(Cancelled 2015)

28.Which one of the following is not an inclusion body found in prokaryotes ?

a) Glycogen granule

b) Polysome

c) Phosphate granule

d) Cyanophycean granule

(Cancelled 2015)

29.The solid linear cytoskeletal; elements having a diameter of 6nm and made up of a single type of monomer are known as a) Microtubules

b) Microfilaments

c) Intermediate filaments

d) Lamins

( 2014)

30. The osmotic expansion of a cell kept in water is chiefly regulated by

a) Mitochondria

b) Vacuoles

c) Plastids

d) Ribosomes

( 2014)

31. Match the following and select the correct answer

A Centriole (i) Infoldings in mitochondria

B Chlorophyll (ii) Thylakoids

C Cristae (iii) Nucleic acids

D Ribozymes (iv) Basal body of cilia or flagella

A B C D

a. Iv Ii I Iii

b. I Ii Iv Iii

c. I Iii Ii Iv

d. Iv Iii I ii

(2014)

32. The Golgi complex plays a major role

a) As energy transferring organelles

b) In post translational modification of proteins and glycosylation of lipids

c) In trapping the light and transforming it into chemical energy

d) In digesting proteins and carbohydrates

(NEET 2013)

33. Which one of the following organelle in the figure correctly matches with its function ?

a) Golgi apparatus, formation of glycolipids

b) Rough endoplasmic reticulum, protein synthesis

c) Rough endoplasmic reticulum, formation of glycoproteins

d) Golgi apparatus, protein synthesis

(NEET 2013)

34.A major site for synthesis of lipids is

a) Symplast

b) Nucleoplasm

c) RER

d) SER

(NEET 2013)

35. The term ‘glycocalyx’ is used for

a) A layer present between cell wall and membrane of bacteria

b) Cell wall of bacteria

c) Bacterial cell glycol-engineered to possess N-glycosylated proteins

d) A layer surrounding the cell wall of bacteria

Karnataka NEET 2013

36. Which of the following types of plastid does not contain stored food material ?

a) Chromoplasts

b) Elaioplasts

c) Aleuroplasts

d) Amyloplasts

(Karnataka NEET 2013)

37. Select the alternative giving correct identification and function of the organelle ‘A’ in the diagram

a) Mitochondria – Produce cellular energy in the form of ATP

b) Golgi body – Provides packaging material

c) Lysosomes – Secrete hydrolytic enzymes

d) Endoplasmic reticulum – Synthesis of lipids

(Karnataka NEET 2013)

38. Select the correct statement from the following regarding cell membrane.

a) Na+ and K+ ions move across cell membrane by passive transport

b) Proteins make up 60 to 70 % of the cell membrane

c) Lipids are arranged in a bilayer with polar heads towards the inner part

d) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson

( 2012)

39. What is true about ribosomes ?

a) The prokaryotic ribosomes are 80S, where “S” stands for sedimentation coefficient

b) These are composed of ribonucleic acid and proteins

c) These are found only in eukaryotic cells

d) These are self-splicing introns of some RNAs.

( 2012)

40.Which one of the following does not differ in E. Coli andChlamydomonas ?

a) Ribosomes

b) Chromosomal organization

c) Cell wall

d) Cell membrane

( 2012)

41. Which one of the following cellular parts is correctly described ?

a) Thylakoids – flattened membranous sacs forming the grana of chloroplasts

b) Centrioles – sites for active RNA synthesis

c) Ribosomes – those on chloroplasts are larger (80S) while those in the cytoplasm are smaller (70s)

d) Lysosomes – optimally active at a pH of about 8.5

(Mains 2019)

42. Which one of the following structures is an organelle within an organelle ?

a) Ribosome

b) Peroxisome

c) ER

d) Mesosome

(Mains 2012)

43. Peptide synthesis inside a cell takes place in

a) Chloroplast

b) Mitochondria

c) Chromoplast

d) Ribosomes

( 2011)

44. Important site for formation of glycoproteins and glycolipids is

a) Vacuole

b) Golgi apparatus

c) Plastid

d) Lysosome

( 2011)

45. Which one of the following is not considered as a part of the endomembrane system?

a) Golgi complex

b) Peroxisome

c) Vacuole

d) Lysosome

(Mains 2011)

46. The figure below shows the structures of a mitochondrion with its four parts labelled A, B, C and D. select the part correctly matched with its function.

a) D (outer membrane) – gives rise to inner membrane by splitting

b) B (inner membrane) – Forms infoldings molecule and ribosomes

c) C (crista) – possesses single circular DNA molecule and ribosomes

d) A (matrix) – major site for respiratory chain enzymes

(Mains 2011)

47. The plasma membrane consists mainly of

a) Phosphides embedded in a protein bilayer

b) Proteins embedded in a phospholipid bilayer

c) Proteins embedded in a polymer of glucose molecules

d) Proteins embedded in a carbohydrate bilayer

(2010)

48. The main area of various types of actives of a cells is

a) Plasma membrane

b) Mitochondrion

c) Cytoplasm

d) Nucleus

( 2010)

49. Which one of the following has its own DNA ?

a) Mitochondria

b) Dictyosome

c) Lysosome

d) Peroxisome

(2010)

50. Which one of the following structures between two adjacent cells is an effective transport pathway ?

a) Plasmodesmata

b) Plastoquinone's

c) Endoplasmic reticulum

d) Plasmalemma

( 2010)

51.An elaborate network of filamentous proteinaceousstructures present in the cytoplasm which helps in the maintenance of cell shape is called a) Thylakoid

b) Endoplasmic reticulum

c) Plasmalemma

d) Cytoskeleton

(Mains 2010)

52. Identify they components labelled A, B C and D in the diagram below from the list (i) to (vii) given along with

Components :I. Cristate of mitochondriaII. Inner membrane of mitochondriaIII. Cytoplasm IV. Smooth endoplasmic reticulumV. Rough endoplasmic reticulum VI. Mitochondrial matrix VII. Cell vacuole VIII. Nucleus

The correct components are :

A B C D

(a) V Iv Viii Iii

(b) I Iv Viii Iv

(c) Vi V Iv Vii

(d) V I Iii ii

(Mains 2010)

53. Middle lamella is composed mainly of

a) Mauramic acid

b) Calcium pectate

c) phosphoglycerides

d) Hemicellulose

( 2009)

54. Cytoskeleton is made up of

a) Calleose deposits

b) Cellulosic microfibrils

c) Proteinaceous filaments

d) Calcium carbonate granules

(2009)

55. Plasmodesmata are

a) Locomotory structures

b) Membranes connecting the nucleus with plasmalemma

c) Connections between adjacent cells

d) Lignified cemented layers between cells

(2009)

56.In germinating seeds, fatty acids are degraded exclusively in the

a) Peroxisomes

b) Mitochondria

c) Proplastids

d) Glyoxysomes

(2008)

57. Vacuole in a plant cell

a) Lacks membrane and contains are

b) Lacks membrane and contains water and excretory substances

c) Is membrane-bound and contains storage proteins and lipids

d) Is membrane-bound and contains water and excretory substances

(2008)

58. The two sub-units of ribosome remain united at a critical ion level of

a) Magnesium

b) Calcium

c) Copper

d) Manganese

(2008)

59. Keeping in view the ‘fluid mosaic model’ for the structure of cell membrane, which one of the following statement is correct with respect to the movements of lipids and proteins from one lipid monolayer to the other (described as flip- flop movement) ?

a) While proteins can flip-flop, lipids can not

b) Neither lipids, nor proteins can flip-flop

c) Both lipids and proteins can flip- flop

d) While lipids can rarely flip-flop, proteins cannot

(2008)

60. Which one of the following is not a constituent of cell membrane ?

a) Glycolipids

b) Proline

c) Phospholipids

d) Cholesterol

(2007)

61. Select the wrong statement from the following

a) Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane

b) Both chloroplasts and mitochondria contain DNA

c) The chloroplasts are generally much larger than mitochondria

d) Both chloroplasts and mitochondria contain an inner and outer membrane

(2007)

62. Biological organization starts with

a) Cellular level

b) Organismic level

c) Atomic level

d) Submicroscopic molecular level

(2007)

63. Which of the following statements regarding mitochondrial membrane is not correct ?

a) The outer membrane resembles a sieve

b) The outer membrane is permeable to all kinds of molecules

c) The enzymes of the electron transfer chain are embedded in the outer membrane

d) The inner membrane is highly convoluted forming a series of infoldings

(2006)

64. Which of the following statements regarding cilia is not correct ?

a) Cilia contain an outer ring of nine doublet microtubules surrounding two singlet microtubules

b) The organized beating of cilia is controlled by fluxes of Ca2+ across the membrane

c) Cilia are hair like cellular appendages

d) Microtubules of cilia are composed of tubulin

(2006)

65. A major breakthrough in the studies of cells came with the development of electron microscope. This is because

a) The electron microscope is more powerful than the light microscope as it uses a beam of electrons which has wavelength much longer than that of photons

b) The resolving power of the electron microscope is much higher than that of the light microscope

c) The resolving power of the electron microscope is 200-350 nm as compared to 0.1 – 0.2 nm for the light microscope

d) Electron beam can pass through thick materials, whereas light microscopy requires thin sections

(2006)

66. Chlorophyll in chloroplasts is located in

a) Grana

b) Pyrenoid

c) Stroma

d) Both grana and stroma

(2005)

67. A student wishes to study the cell structure under a light microscope having 10X eyepiece and 45X objective. He should illuminate the object by which one of the following colours of light so as to get the best possible resolution ?

a) Blue

b) Green

c) Yellow

d) Red

(2005)

68. According to widely accepted “fluid mosaic model” cell membranes ae semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, modified in several respects. In this regard, which of the following statements is incorrect ?

a) Proteins in cell membranes can travel within the lipid bilayer

b) Proteins can also undergo flip-flop movements in the lipid bilayer

c) Proteins can remain confined within certain domains of the membrane

d) Many proteins remain completely embedded within the lipid bilayer

(2005)

69. Centromere is required for

a) Movement of chromosomes towards poles

b) Cytoplasmic cleavage

c) Crossing over

d) Transcription

(2005)

70. Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on

a) Membrane potential

b) Accumulation of Na+ ions

c) Accumulation of K+ ions

d) Proton gradient

(2005)

71. The main organelle involved in modification and outing of newly synthesized proteins to their destinations is

a) Chloroplast

b) Mitochondria

c) Lysosome

d) Endoplasmic reticulum

(2005)

72. The telomeres of eukaryotic chromosomes consist of short sequences of

a) Thymine rich repeats

b) Cytosine rich repeats

c) Adenine rich repeats

d) Guanine rich repeats

(2004)

73. In chloroplasts, chlorophyll is present in the

a) Outer membrane

b) Inner membrane

c) Thylakoids

d) Stroma

(2004)

74. Cellular totipotency is demonstrated by

a) Only gymnosperm cells

b) All plant cells

c) All eukaryotic cells

d) Only bacterial cells

(2003)

75. Ribosomes are produced in

a) Nucleolus

b) Cytoplasm

c) Mitochondria

d) Golgi body

(2002)

76. In fluid mosaic model of plasma membrane

a) Upper layer is non-polar and hydrophilic

b) Upper layer is polar and hydrophobic

c) Phospholipids form a bimolecular layer in middle part

d) Proteins form a middle layer

(2002)

77. Element necessary for the middle lamella is

a) Ca

b) Zn

c) K

d) Cu

(2001)

78. Microtubules are absent in

a) Mitochondria

b) Flagella

c) Spindle fibres

d) Centrioles

(2001)

79. Lysosome contains

a) Oxidative enzymes

b) Hydrolytic enzymes

c) Reductive enzymes

d) Anabolic enzymes

(2000)

80. Which of the following ribosomes are engaged in protein synthesis in animal cell ?

a) Ribosomes which occur on nuclear membrane and ER

b) Ribosomes of only cytosol

c) Ribosomes of only nucleolus and cytosol

d) Ribosomes of only mitochondria and cytosol

(2000)

81. Function of telomeres in nucleus is

a) Poleward movement

b) To initiate the RNA synthesis

c) To seal the ends of chromosomes

d) To recognize the homologous chromosome

(2000)

82. Which cell organelle is concerned with glycosylation of protein ?

a) Ribosome

b) Peroxisome

c) Endoplasmic reticulum

d) Mitochondria

(2000)

83. Which of the following organelles has single membrane ?

a) Mitochondria

b) Spherosomes

c) Nucleus

d) Cell wall

(1999)

84. The proteins are synthesized at

a) Centrosomes

b) Glogi bodies

c) Ribosomes

d) Mitochondria

(1999)

85. Which of the following structures will not be common to mitotic cell of a higher plant ?

a) Centriole

b) Spindle fibre

c) Cell plate

d) Centromere

(1997)

86. The mechanism of ATP formation both in chloroplast and mitochondria is explained by

a) Chemiosmotic theory

b) Munch’s hypothesis (mass flow model)

c) Relay pump theory of Godlewski

d) Cholondy- Wont’s model

(1997)

87. Protein synthesis in an animal cell, takes place

a) In the cytoplasm as well as endoplasmic reticulum

b) Only on ribose attached to nucleon

c) Only in the cytoplasm

d) In the nucleolus as well in the cytoplasm

(1997)

88. Lysosomes are rich in

a) Nucleic acids

b) Hydrolytic enzymes

c) Carbohydrates

d) Hormones

(1996)

89. The prokaryotic flagella possess

a) Helically arranged protein molecule

b) “9 + 2” membrane enclosed fibre

c) Unit membrane enclosed fibre

d) Protein membrane enclosed fibre

(1995)

90. The desmosomes are concerned with

a) Cell division

b) Cell adherence

c) Cytolysis

d) Cellular excretion

(1995)

91. Which of the following organelles contain enzymes that have digestive action ?

a) Ribosomes

b) Polysomes

c) Plastids

d) Lysosomes

(1994)

92. In mitochondria, cristae act as sites for

a) Protein synthesis

b) Phosphorylation of flavoproteins

c) Breakdown of macromolecules

d) Oxidation – reduction reaction

(1994)

93. Centromere is required for

a) Replication of DNA

b) Chromosome segregation

c) Poleward movement of chromosomes

d) Cytoplasmic cleavage

(1994)

94. Which one of the following organelles is located near the nucleus and contains a collection of flattened membrane bound cisternae ?a) Nucleolus

b) Mitochondrion

c) Centriole

d) Golgi apparatus

(1994)

95. The inner membrane of the mitochondria is, usually, highly convoluted forming a series of infoldings known as

a) Thylakoids

b) Lamellae

c) Cristae

d) Grana

(1994)

96. Besides giving out secretory vesicles, the Golgi apparatus is also concerned with the formation of

a) Thylakoids

b) Lamellae

c) Cristae

d) Grana

(1994)

97. Active and passive transports across cell membrane differ in

a) Passive transport is nonselective

b) Passive transport is along the concentration gradient while active transport is due to metabolic energy

c) Active transport is more rapid

d) Passive transport is confined to anions while active transport in confined to conations

(1993)

98. Balbiani rings (puffs) are sites of

a) DNA replication

b) RNA and protein synthesis

c) Synthesis of polysaccharides

d) Synthesis of lipids

(1993)

99. In plant cells, peroxisomes are associated with

a) Photorespiration

b) Phototropism

c) Photoperiodism

d) Photosynthesis

(1993)

100. Membranous bag with hydrolytic enzymes which is used for controlling intracellular digestion of macromolecules is

a) Endoplasmic reticulum

b) Nucleosome

c) Lysosome

d) Phagosome

(1993)

101. Golgi apparatus is absent in

a) Higher plants

b) Yeast

c) Bacteria and blue-green algae

d) None

(1993)

102. Cell recognition and adhesion occur due to biochemicals of cell membranes named

a) Proteins

b) Lipids

c) Proteins and lipids

d) Glycoproteins and glycolipids

(1993)

103. In salivary gland chromosomes/polytene chromosomes, pairing is

a) Absent

b) Occasional

c) Formed between non-homologous chromosomes

d) Formed between homologous chromosomes

(1993)

104. Which is correct about cell theory in view of current status of our knowledge about cell structure ?

a) It needs modification due to discovery of subcellular structures like chloroplasts and mitochondria

b) Modified cell theory means that all laving being are composed of cells capable of reproducing

c) Cell theory does not hold good because all living beings (e.g., viruses) do not have cellular organization

d) Cell theory means that all living objects consists of cells whether or not capable of reproducing

(1993)

105. Names of Schleiden and Schwann are associated with

a) Protoplasm as the physical basis of life

b) Cell theory

c) Theory of cell lineage

d) Nucleus functions as control centre of cell

(1993)

106. All types of plastids possess essentially the same structure because they

a) Perform the same function

b) Store food materials like starch, fat and protein

c) Occur in aerial parts

d) Can transform from one form to another

(1992)

107. Experiments of Acetabularia by Hammerling proved the role of

a) Cytoplasm in controlling differentiation

b) Nucleus in heredity

c) Chromosomes in heredity

d) Nucleo-cytoplasmic ratio

(1992)

108. Which one is apparato reticolare?

a) Golgi apparatus

b) Endoplasmic reticulum

c) Microfilaments

d) Microtubules

(1992)

109. An outer covering membrane is absent over

a) Nucleolus

b) Lysosome

c) Mitochondrion

d) Plastid

(1992)

110. All plastids have similar structure because they can

a) Store starch, lipids and proteins

b) Get transformed from one type to another

c) Perform same function

d) Be present together

(1992)

111. Oxysomes or F0 – F1 particles occur on

a) Thylakoids

b) Mitochondrial surface

c) Inner mitochondrial membrane

d) Chloroplast surface

(1992)

112. Ribosomes are the centre for

a) Respiration

b) Photosynthesis

c) Protein synthesis

d) Fat synthesis

(1992)

113. Angstrom (A°) is equal to

a) 0.01 mm

b) 0.001 mm

c) 0.0001 mm

d) 0.00001 mm

(1992)

114. Electron microscope has a high resolution power. This is due to

a) Electromagnetic lenses

b) Very low wavelength of electron beam

c) low wavelength of light source used

d) High numerical aperture of glass lenses used

(1992, 1990)

115. Addition of new cell wall particles amongst the existing ones is

a) Deposition

b) Apposition

c) Intussusception

d) Aggregation

(1991)

116. Cell wall shows

a) Complete permeability

b) Semi permeability

c) Differential permeability

d) Impermeability

(1991)

117. Ribosomes were discovered by

a) Golgi

b) Porter

c) de Robertis

d) Palade

(1991)

118. Fluid mosaic model of cell membrane was put forward by

a) Danielli and Davson

b) Singer and Nicolson

c) Graner and Allard

d) Watson and Crick

(1991)

119. Resolution power is the ability to

a) Distinguish two close points

b) Distinguish two close objects

c) Distinguish amongst organelles

d) Magnify image

(1991)

120. hammerling’s experiments of Acetabularia involved exchanging

a) Cytoplasm

b) Nucleus

c) Rhizoid and stalk

d) Gametes

(1990)

121. The latest model for plasma membrane is

a) Lamellar model

b) Unit membrane model

c) Fluid mosaic model

d) Molecular lipid model

(1990)

122. Magnification of compound microscope is not connected with

a) Numerical aperture

b) Focal length of objective

c) Focal length of eye piece

d) Tube length

(1990)

123. A bivalent consists of

a) Two chromatids and one centromere

b) Two chromatids and two centromeres

c) Four chromatids and two centromeres

d) Four chromatids and four centromeres

(1990)

124. Nucleoproteins are synthesized in

a) Nucleoplasm

b) Nuclear envelope

c) Nucleolus

d) Cytoplasm

(1989)

125. Polyribosomes are aggregates of

a) Ribosomes and rRNA

b) Only rRNA

c) Peroxisomes

d) Several ribosomes held together by string of mRNA

(1989)

126. Plasma membrane is made of

a) Proteins and carbohydrates

b) Proteins and lipids

c) Proteins, lipids and carbohydrates

d) Proteins, some nucleic acid and lipids

(1989)

127. Organelles can be separated from cell homogenate through

a) Chromatography

b) X-rays diffraction

c) Differential centrifugation

d) Auto – radiography

(1989)

128. Acetabularia used in Hammerling’s nucleocytoplasmic experiments is

a) Unicellular fungus

b) Multicellular fungus

c) Unicellular uninucleate green alga

d) Unicellular multinucleate green algae

(1988)

129. According to fluid mosaic model, plasma membrane is composed of

a) Phospholipids and oligosaccharides

b) Phospholipids and hemicellulose

c) Phospholipids and integral proteins

d) Phospholipids, extrinsic proteins and intrinsic proteins

(1988)

2021 1.A 2. A 3. C 4. B Answer key

2020 1.B 2. B 3. C Answer key

1. A 2. B 3. C 4. C 5. D 6. A 7. D 8. B 9. D 10. D

11. C 12. B 13. B 14. A 15. A 16. D 1 A 18. B 19. D 20. C

21. B 22. D 23. D 24. B 25. D 26. D 27. D 28. B 29. B 30. B

31. A 32. B 33. B 34. D 35. D 36. A 37. A 38. D 39. B 40. D

41. A 42. A 43. D 44. B 45. B 46. B 47. B 48. C 49. A 50. A

51. D 52. A 53. B 54. C 55. C 56. D 57. D 58. A 59. D 60. B

61. A 62. D 63. C 64. B 65. B 66. A 67. A 68. B 69. A 70. D

71. D 72. D 73. C 74. B 75. A 76. C 77. A 78. A 79. B 80. A

81. C 82. C 83. B 84. C 85. A 86. A 87. D 88. B 89. A 90. B

91. D 92. D 93. C 94. D 95. C 96. A 97. B 98. B 99. A 100. C

101. C 102. D 103. D 104. C 105. B 106. D 107. B 108. A 109. A 110. B

111. C 112. C 113. C 114. B 115. C 116. A 117. D 118. B 119. B 120. C

121. C 122. A 123. C 124. D 125. D 126. C 127. C 128. C 129. D

ANSWER KEY

"Success is walking from failure to failure with no loss of enthusiasm."