BIOLOGY

Topics – Organization Of Cell ( Cell – A unit Of Life) Max. Marks- 360

1. The cell has a thin outer layer which is known as 6.What is the main arena of cellular activities in
‘Plasma membrane’. Who reported this? eukaryotic cells?
(a) Schleiden (b) Schwann (a) Nucleus (b) Cytoplasm
(c) Virchow (d) Robert Hooke (c) Plasma membrane (d) All of these
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2. What is the outer covering of typical plant cell? 7. Where are the ribosomes found in prokaryotic cells?
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(a) Cell wall externally (a) Cytoplasm (b) Mitochondria

(b) Plasma membrane externally (c) Chloroplast (d) All of these
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(c) Cell wall internally 8. Which of the following organelle is exclusively found
(d) Cell wall externally, plasma membrane internally in animal cells?
3. Identify the A, B, C and D in the given figure (a) Mitochondria (b) Chloroplast
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(c) Vacuole (d) Centriole

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9. Which of the following is incorrect?

(a) Smallest cell → Mycoplasma
(b) Smallest cell → Bacteria
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(c) Largest single cell → Ostrich’s egg

(d) None of these
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(a) A–WBC, B–Mesophyll cell, C–RBC, D–Columnar

Epithelial cells 10. Which of the following cells are round and oval?
(b) A–Columnar epithelial cells, B–Mesophyll cell, (a) RBCs (b) WBCs
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C–WBC, D–RBC (c) Columnar cells (d) Mesophyll cells

(c) A–Mesophyll cell, B–WBC, C–Columnar 11. Which of the following are long and narrow cells?
epithelial cells, D–WBC (a) Nerve cells (b) WBC
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(d) A–RBC, B–Columnar epithelial cells, C– (c) Columnar epithelial cells (d) Tracheid
Mesophyll Cell, D–WBC 12. Which of the following represent prokaryotic cell?
4. In each cheek cell, there is a dense membrane bound
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(a) Blue-green algae (b) PPLO

structure which contains chromosome. This structure is (c) Bacteria (d) All of these
(a) Endoplasmic reticulum (b) Golgi bodies 13. What is a genomic DNA of bacteria?
(c) Nucleus (d) Mitochondria (a) Circular DNA
5. . Identify the figure given below. (b) Single stranded DNA
(c) Both (a) and (b)
(d) ds DNA, linear
14. Where is the genetic material located in
prokaryotes?
(a) Nucleus
(a) Tracheid (b) Nerve Cell (b) Enveloped by nuclear membrane
(c) Lipid bilayer (d) None of these (c) Naked in cytoplasm
(d) None of these
15. Which is the common organelles that are found in 26. Folding of inner membrane of mitochondria are
both eukaryotes and prokaryote? called
(a) Lysosome (b) Ribosome (a) Cristae (b) Grana
(c) Vacuole (d) Mitochondria (c) Calcium oxalate crystals (d) Sacs
16. What is a specialized differentiated form of cell 27. Choose the wrong option (s) -
membrane? (a) Mitochondria and chloroplast are energy
(a) Plasmid (b) Nucleosome transducers.
(c) Mesosome (d) All of these (b) The functions of mitochondria, chloroplast and
17. A loose sheath of glycocalyx layer is called peroxisome are not coordinated with ER, GB,
(a) Plasma membrane (b) Capsule lysosome and vacuoles, so they are a part of the
(c) Slime layer (d) Cell wall endomembranous system.
18. What is a thick, tough, layer of glycocalyx known (c) Internal compartmentalization causes the
as? division of labour within eukaryotic cells that greatly
(a) Slime layer (b) Capsule increases overall cellular function.
(c) Cell wall (d) Cell envelope (d) All
19. Which of the following is not the function of cell 28. Lamellae of chloroplast are known as :
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wall? (a) Granum (b) Frets

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(a) Interaction with outside world (c) Thylakoids (d) Stroma lamellae
(b) Provide structural support and shape 29. Functional unit of chloroplast is
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(c) Prevent from bursting and collapsing (a) Stroma (b) Quantasome
(d) Exchange of nutrition takes place through it (c) Oxysomes (d) Peroxysomes
20. Which of the following helps in respiration, 30. Which one of the following cell organelles found
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secretion process, and increase the surface area for only in plants?
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enzymatic content? (a) Golgi complex (b) Mitochondria

(a) Plasma membrane (b) Cell wall (c) Plastids (d) Ribosomes
(c) Mesosomes (d) Glycocalyx layer 31. The cell organelle involved in glycosylation of
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21. The cells are held together by a Calcium-pectate protein is

layer called: (a) ribosome (b) peroxisome
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(a) Primary cell wall (b) Secondary cell wall (c) endoplasmic reticulum (d) mitochondria
(c) Middle lamella (d) Tertiary cell wall 32. The Ribosomes are made up of
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22. The strength and rigidity of a cell wall is due to the (a) DNA + Protein (b) RNA + Protein
substance known as (c) DNA + RNA (d) None of these
(a) Suberin (b) Cellulose 33. Peroxisomes are rich in
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(c) Lignin (d) Pectin (a) DNA (b) RNA

23. The most important function of endoplasmic (c) Catalytic enzymes (d) Oxidative enzymes
reticulum is
34. Which of the following statements regarding cilia is
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(a) Protein synthesis

not correct ?
(b Nourishing the nucleus (a) Cilia contain an outer of nine doublet
(c) Secretion of materials microtubules surrounding two single microtubules.
(d) To give shape to the cell
(b) The organized beating of cilia is controlled by
24. Which of the following is a part of endomembrane fluxes Ca 2 + across the membrane.
system of eukaryotic cell? (c) Cilia are hair-like cellular appendages.
(a) Peroxisomes (b) Chloroplasts (d) Microtubules of cilia are composed of tubulin.
(c) Mitochondria (d) Golgi complexes
35. Which one does not occur in cell vacuoles
25. Which of the following organelles is directly (a) Hydrolytic enzymes (b) Latex
connected to the outer membrane of the nucleus in a
(c) Anthocyanins (d) DNA
eukaryotic cell?
(a) Mitochondrion (b) Lysosome
(c) Golgi apparatus (d) Endoplasmic reticulum
36. The function of centrosome is 45. Which is not the function of cell wall?
(a) Inhibition of cell division I. Provides shape to the cell
(b) Initiates cell division II. Protects the cell from mechanical damage and
(c) To increase protein synthesis infection
(d) None of these III. Helps in cell to cell interaction
IV. Provides barrier to undesirable macromolecules
37. Which of the following pair lack the unit V. Imbibes water.
membrane? (a) Only V
(a) Nucleus & E.R. (b) Only IV
(b) Mitochondria & chloroplast (c) Only II, IV and V
(c) Ribosome & nucleolus (d) None
(d) Golgi body & lysosome
46. It is the smallest cell
38. Chromosome with centromere at one end (a) Bacteria
(a) Metacentric (b) Mycoplasma
(b) Sub-metacentric (c) Yeast
(c) Telocentric (d) Blue-green algae
(d) Acrocentric 47. Prokaryotic cells have which architectural regions?
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39. Hereditary characters are due to (a) Cell

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(a) Chromosomes (b) Gene (b) Appendages

(c) Blood (d) Placenta (c) Nucleus
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(d) all of the above

40. Part of chromosome which joins with spindle
48. The association of more than one ribosome with a
fibres is
single molecule of mRNA complex is called as
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(a) Chromatid (b) Chromonema

(a) Polypeptide
(c) Chromomere (d) Centromere
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(b) Polysome
41. If the cell wall of a cell is removed, the (c) Polymer
remaining part is called (d) Polysaccharide
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(a) etioplast (b) aleuroplast 49. Which structure possesses flagellin protein?
(c) amyloplast (d) protoplast (a) Flagellum
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42. Important site for formation of glycoproteins (b) Muscles fiber

and glycolipids is (c) Pilli
(a) vacuole (d) all of the above
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(b) golgi apparatus 50. The cells involved in large amounts of lipid
(c) plastid synthesis do not possess this organelle on the
(d) lysosome endoplasmic reticulum
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(a) Mitochondrion
43. In mitochondria, proteins accumulate in the
(b) Golgi apparatus
(a) outer membrane (c) lysosome
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(b) inner membrane (d) Ribosomes

(c) intermembrane space 51. In mitochondria, it contains F-particles
(d) matrix (a) Cristae
44. Which one of the following is not considered as (b) Matrix
a part of the endomembrane system ? (c) Outer layer
(a) Golgi complex (d) all
(b) Peroxisome 52. The materials essential for the dark reaction are
(c) Vacuole located in
(d) Lysosome (a) Circular-DNA
(b) Stroma
(c) Thylakoids
(d) Ribosomes
53. The area of the cytoplasm without any cytoplasm is 62. Select the Correct option from Column-I and
called as Column-II
(a) Vacuoles Column-I Column-II
(b) Chloroplast P. Microfilaments i. Glycocalyx
(c) Cytoplasmic Gap Q. Microtubules ii. Actin
(d) Mitochondria R. Flagella iii. Tubulin
54. In some bacteria, the outermost layer is a loose S. Outermost layer of bacteria iv. Flagellin
sheath layer called as
(a) Slime layer (a) (P – ii) (Q – iii) (R – iv) (S – i)
(b) Capsule (b) (P – ii) (Q – ii) (R – iv) (S – i)
(c) Cell membrane (c) (P – ii) (Q – iii) (R – i) (S – iii)
(d) Glycocalyx (d) (P – iv) (Q – i) (R – iii) (S – ii)
55. Which organelle is responsible for the degradation
of worn-out cells? 63. Which of the following sentences is false?
(a) Golgi apparatus (a) Lysosomes possess a double-layer structure
(b) Vacuoles (b) Lysosome is a suicidal bag
(c) Endoplasmic Reticulum (c) Lysosome digests all macromolecules
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(d) Lysosome (d) Lysosomes possess hydrolase enzymes

64. Aldolase enzyme related with which organelles?
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56. Each granum possesses how many thylakoids?

(a) 90-93 (a) Chloroplast
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(b) 19-89 (b) Cell-matrix

(c) 02-100 (c) Nucleus
(d) 19-38 (d) Mitochondria
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57. In the peripheral region of centriole nine triplets 65. Where does ETC occur?
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are arranged at which angles? (a) Outer membrane of mitochondria

(a) 60 (b) Matrix of mitochondria
(b) 40 (c) Inner membrane of mitochondria
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(c) 30 (d) None

(d) 90 66. The cytoskeleton is made up of
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58. Like a zygote any cell of the body is capable of (a) microparticles of CaCO3
producing a new individual is known as (b) Cellulose
(a) Totipotency (c) Callose
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(b) Differentiation (d) Proteinous fiber

(c) Growth 67. A microtubule is composed of what type of
(d) Reproduction protein?
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59. Which organelle is associated with the formation of (a) Myosin

basal granules, cilia, and flagella? (b) Tubulin
(a) Golgi apparatus (c) Actin
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(b) Mitochondria (d) Durable protein

(c) Lysosome 68. Directions: In the following questions, a statement
(d) Centrosome of Assertion (A) is followed by a statement of Reason (R).
60. Which structure serves as a protective layer
against attack by phagocytes and by viruses? Assertion : Specialization of cells is useful for organism.
(a) Capsule
(b) Appendages Reason ; It increases the operational efficiency of an
(c) Mesosome organism.
(d) Mitochondria (a) If both Assertion and Reason are true and Reason is
61. Select Correct option the correct explanation of Assertion.
(a) Lysosome – Suicidal bag (b) If both Assertion and Reason are true but Reason is
(b) Ribosome – Lipid synthesis not the correct explanation of Assertion.
(c) Mitochondria – Grana (c) If Assertion is true but Reason is false.
(d) SER – Prokaryotic Cell (d) If both Assertion and Reason are false.
69. Which of the following is correct statement : 79. Match Column I with Column II
(a).Cells of all living organisms have a nucleus. Column I Column II
(b). Both animal and plant cells have well-defined cell A. Endoplasmic 1. Stack of cisternae
walls. reticulum
(c).In prokaryotes, there are no membrane-bound B. Spherosome 2. Store oils or fats
organelles. C. Dictyosomes 3. Synthesis and storage of
(d). Cells are formed de novo from abiotic materials. lipids
70. Which of the following statements are true about D. Peroxisome 4. Photorespiration
Eukaryotes ? E. Elaioplasts 5. Detoxification of drugs
I. They are cells with a nucleus. (a) A → (5); B → (3); C → (1); D → (4); E → (2)
II. They are found both in humans and multicellular (b) A → (5); B → (3): C → (2); D → (4); E → (1)
organisms. (c) A → (2); B → (3); C → (1); D → (4); E → (5)
III. Endoplasmic reticulum is present in Eukaryotes. (d) A → (3); B → (3); C → (1); D → (5); E → (2)
IV. They have chemically complexed cell wall 80. Directions: In the following questions, a statement
(a) I, II and III (b) I, III and IV of Assertion (A) is followed by a statement of Reason (R).
(c) I, II and IV (d) all are correct
71. Which one of the following is not a constituent of Assertion : Mitochondria and chloroplasts are semi
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cell membrane? autonomous organelles.

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(a) Glycolipids (b) Proline

(c) Phospholipids (d) Cholesterol Reason ; They are formed by division of pre-existing
organelles as well as contain DNA but lack protein
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72. Which of the following cell organelle is considered synthesizing machinery.

to be rich in catabolic enzymes?
(a) Endoplasmic reticulum (b) Lysosome (a) If both Assertion and Reason are true and Reason is
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(c) Golgi body (d) Mitochondria the correct explanation of Assertion.

73. Cellulose is the major component of cell walls of
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(b) If both Assertion and Reason are true but Reason is

(a) Pythium (b) Xanthomonas not the correct explanation of Assertion.
(c) Pseudomonas (d) Saccharomyces (c) If Assertion is true but Reason is false.
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74. Peptide synthesis inside a cell takes place in: (d) If both Assertion and Reason are false
(a) chloroplast (b) mitochondria 81. Which of the following enzymes is absent in
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(c) chromoplast (d) ribosomes lysosome ?

75. Ribosomal RNA is actively synthesized in (a) Lipases and proteases (b) carbohydrase
(a) Lysosomes (b) Nucleolus (c) Polymerases (d) Nuclease
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(c) Nucleoplasm (d) Ribosomes 82. The term “nuclear envelope” is more correct than
76. Which one of the following has its own DNA? the term “nuclear membrane” because
(a) Mitochondria (b) Dictyosome (a) The enclosure has pores which membranes do not
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(c) Lysosome (d) Peroxisome (b) The enclosure is made up of two membranes
77. Which one of the following combination is (c) The chemical composition is inconsistent with cellular
membranes
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mismatched?
(d) None of the above. The two terms are perfect
(a) Glycocalyx - may be capsule or slime layer
synonyms.
(b) Pili - Reproduction
(c) Cell wall - Protective, determines shape, prevents 83. Which one of the following does not differ in E. coli
from and chlamydomonas.
bursting (a) Cell wall
(d) Flagella, Pili and Fimbriae - Surface structures of (b) Cell membrane
bacterial (c) Ribosomes
cell (d) Chromosomal organization
78. Which one of the following structures is an 84. The two sub-units of ribosomes remain united ate a
organelle within an organelle? critical ion level
(a) Ribosome (b) Peroxisome (a) Calcium
(c) ER (d) Mesosome (b) Copper
(c) Manganese
(d) Magnesium
85. The cytoplasmic connections from cell to cell are 88. Structure which provides the shape to
known as chromosomes is called -
(a) middle lamella (b) plasmodesmata (a) Centromere
(c) cell membrane system (d) endoplasmic reticulum (b) Centriole
86. The most abundant lipid in the cell membrane is - (c) Satellite
(a) Cutin (d) Chromomere
(b) Cholesterol 89. Which one of the following is not considered as a
(c) Steroid part of the endomembrane system ?
(d) Phospholipid (a) Golgi complex
87. An organelle with an internal cross section showing (b) Peroxisome
characteristic "9 + 2" morphology is the - (c) Vacuole
(a) Microtubule (d) Lysosome
(b) Microfilament 90. Which is not a true organelle?
(c) Cilium or flagellum (a) Lysosome
(d) Cytoskeleton (b) Mitochondrion
(c) Chloroplast
( d) Ribosome
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AC
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