NCERT CLASS 11 | TOPIC : CELL AND CELL THEORY | QB-1 | NEET BIOLOGY ONLINE TEST ~ KALVISOLAI.NET

NCERT CLASS 11 | TOPIC : CELL AND CELL THEORY | QB-1 | NEET BIOLOGY ONLINE TEST

It contains 100 important questions. Choose the most correct answer. Then check your answer. Try again if there are errors. Regards : kalvisolai.net

1 ➤ 1. Which of the following organisms are not composed of cells?

(a) Amoeba (b) Paramecium (c) Euglena (d) None of these

2 ➤ 2. Unicellular organisms are not capable of

(a) Independent existence (b) Performing essential functions of life (c) Both (a) and (b) (d) None of these

3 ➤ 3. Who was the fi rst one to see a live cell?

(a) Robert Hook (b) Leeuwenhoek (c) Robert Brown (d) None of these

4 ➤ 4. Who was the German botanist to study the diff erent cells forming plant tissues?

(a) Schleiden (b) Schwann (c) Rudolf Virchow (d) None of these

5 ➤ 5. In which year Matthias Schleiden examined a large number of plants and observed that all plants are composed of diff erent kinds of cells which form the tissues of the plant?

(a) 1638 (b) 1738 (c) 1838 (d) 1938

6 ➤ 6. In which year Schwann studied diff erent types of animal cells?

(a) 1839 (b) 1739 (c) 1639 (d) 1938

7 ➤ 7. The cell has a thin outer layer which is known as ‘Plasma membrane’. Who reported this?

(a) Schleiden (b) Schwann (c) Virchow (d) Robert Hooke

8 ➤ 8. ‘Cell wall is a unique structure of plant cells’. Who concluded this?

(a) Schleiden (b) Schwann (c) Both (a) and (b) (d) None of these

9 ➤ 9. Who proposed the hypothesis that the bodies of animals and plants are composed of cells and product of cells?

(a) Schleiden (b) Schwann (c) Both (a) and (b) (d) None of these

10 ➤ 10. Who formulated the cell theory?

(a) Schleiden (b) Schwann (c) Both (a) and (b) (d) None of these

11 ➤ 11. ‘Omnis cellula e cellula’ was given in the year _________

12 ➤ 12. Who was the one to describe that cells divided and new cells are formed from pre-existing cells?

(a) Schleiden (b) Schwann (c) Virchow (d) All of these

13 ➤ 13. Which of the following statement is not a part of final cell theory?

a) Cell has a thin outer layer called plasma membrane. (b) All living organisms are made up of cells and products of cells (c) All cells arise from pre-existing cells. (d) All of these

14 ➤ 14. What is the outer covering of typical plant cell?

(a) Cell wall externally (b) Plasma membrane externally (c) Cell wall internally (d) Cell wall externally, plasma membrane internally

15 ➤ 15. Identify the A, B, C and D in the given figure.

(a) A–WBC, B–Mesophyll cell, C–RBC, D–Columnar Epithelial cells (b) A–Columnar epithelial cells, B–Mesophyll cell, C–WBC, D–RBC (c) A–Mesophyll cell, B–WBC, C–Columnar epithelial cells, D–WBC (d) A–RBC, B–Columnar epithelial cells, C–Mesophyll Cell, D–WBC

16 ➤ 16. In each cheek cell, there is a dense membrane bound structure which contains chromosome. This structure is

(a) Endoplasmic reticulum (b) Golgi bodies (c) Nucleus (d) Mitochondria

17 ➤ 17. What does a nucleus of a typical animal cell contain?

(a) Chromosomes (b) Genes (c) DNA (d) All of these Prokaryotic and Eukaryotic Cells

18 ➤ 18. The cell containing membrane bound nucleus can be called

(a) Eukaryotic (b) Prokaryotic (c) Both (a) and (b) (d) None of these

19 ➤ 19. Identify the figure given below.

(a) Tracheid (b) Nerve Cell (c) Lipid bilayer (d) None of these

20 ➤ 20. If volume of the cell is filled with semi-fluid matrix called cytoplasm, what kind of cell is it?

(a) Eukaryotic (b) Prokaryotic (c) Both (a) and (b) (d) None of these

21 ➤ 21. Identify the given below figure.

(a) A tracheid (b) A vessel (c) A parenchyma cell (d) A sieve cell

22 ➤ 22. What is the main arena of cellular activities in eukaryotic cells?

(a) Nucleus (b) Cytoplasm (c) Plasma membrane (d) All of these

23 ➤ 23. In an eukaryotic cell, where does the various chemical reactions occur to keep the cell in living state?

(a) Nucleus (b) Cytoplasm (c) Mitochondria (d) All of these

24 ➤ 24. How many of the following organelles are found in prokaryotic cells? ER, Golgi complex, Lysosome, Mitochondria, Microbodies, Vacuoles

(a) 1 (b) 3 (c) 4 (d) 0

25 ➤ 25. Where are the ribosomes found in prokaryotic cells?

(a) Cytoplasm (b) Mitochondria (c) Chloroplast (d) All of these

26 ➤ 26. Where are ribosomes found in eukaryotic cells?

(a) Cytoplasm (b) Mitochondria (c) Chloroplast (d) All of these

27 ➤ 27. How many of the following are membrane bound organelles? Lysosomes, Ribosomes, Mitochondria, Vacuoles

(a) 2 (b) 3 (c) 4 (d) 0

28 ➤ 28. Which of the following organelle is exclusively found in animal cells?

(a) Mitochondria (b) Chloroplast (c) Vacuole (d) Centriole

29 ➤ 29. Which of the following is incorrect?

(a) Smallest cell → Mycoplasma (b) Smallest cell → Bacteria (c) Largest single cell → Ostrich’s egg (d) None of these

30 ➤ 30. What is the length of mycoplasm cell?

(a) 300 mm (b) 0.3 μm (c) 3000 cm (d) All of these

31 ➤ 31. What could be the length of bacterial cell?

(a) 3 to 5 mm (b) 3 to 5 μm (c) 3.5 cm (d) None of these

32 ➤ 32. Diameter of an RBC is

(a) 7 μm (b) 700 mm (c) 6 μm (d) 6000 mm

33 ➤ 33. The longest cells in human body are

(a) Muscle cells (b) Cardiac muscle cells (c) Neurons (d) None of these

34 ➤ 34. Which of the following is incorrect matching?

(a) Round and biconcave – RBC (b) Amoeboid – WBC (c) Elongated – Tracheid (d) Long and narrow - Nerve cells

35 ➤ 35. Identify the A, B, C, D and E in this figure.

(a) A–Rough endoplasmic reticulum, B–Smooth endoplasmic reticulum, C–Nuclear envelope, D–Microtubule, E–Nucleolus (b) A–Smooth endoplasmic reticulum, B–Rough endoplasmic reticulum, C–Microtubule, D–Nuclear envelope, E–Nucleolus (c) A–Nucleolus, B–Microtubule, C–Smooth endoplasmic reticulum, D–Nuclear envelope, E–Rough endoplasmic reticulum (d) A–Rough endoplasmic reticulum, B–Nucleolus, C–Microtubule, D–Smooth endoplasmic reticulum, E–Microtubule

36 ➤ 36. Which of the following cells are round and oval?

(a) RBCs (b) WBCs (c) Columnar cells (d) Mesophyll cells

37 ➤ 37. Which of the following are long and narrow cells?

(a) Nerve cells (b) WBC (c) Columnar epithelial cells (d) Tracheid

38 ➤ 38. Which of the following represent prokaryotic cell?

(a) Blue Green algae (b) PPLO (c) Bacteria (d) All of these

39 ➤ 39. Identify the A, B, C, D and E in this figure.

(a) A–Smooth endoplasmic reticulum, B–Centriole, C–Golgi apparatus, D–Rough endoplasmic reticulum, E–Ribosomes (b) A–Centriole, B–Smooth endoplasmic reticulum, C–Golgi apparatus, D–Ribosomes, E–Rough endoplasmic reticulum (c) A–Rough endoplasmic reticulum, B–Smooth endoplasmic reticulum, C–Ribosomes, D–Centriole, E–Golgi apparatus, (d) A–Centriole, B–Rough endoplasmic reticulum, C–Golgi apparatus, D–Smooth endoplasmic reticulum, E–Ribosomes

40 ➤ 40. What is true for a prokaryotic cell?

(a) They are smaller in size (b) Multiply much rapidly than eukaryotes (c) Greatly vary in shape and size (d) All of these

41 ➤ 41. What is the size of a typical eukaryotic cell?

(a) 1-2 μm (b) 10-20 μm (c) 10-20 mm (d) 1-2 mm

42 ➤ 42. How much is the size of typical bacteria?

(a) 1-2 μm (b) 10-20 μm (c) 10-20 mm (d) 1-2 mm

43 ➤ 43. How much is the size of viruses?

(a) 0.02-0.2 μm (b) 0.2-0.4 μm (c) 0.02-0.04 μm (d) None

44 ➤ 44. What is a genomic DNA of bacteria?

(a) Circular DNA (b) Single stranded DNA (c) Both (a) and (b) (d) ds DNA, linear

45 ➤ 45. Where is

the genetic material located in prokaryotes? (a) Nucleus (b) Enveloped by nuclear membrane (c) Naked in cytoplasm (d) None of these

46 ➤ 46. What are plasmids?

(a) Naked genomic DNA (b) Smaller DNA than genomic DNA (c) Enveloped DNA (d) None of these

47 ➤ 47. Resistance to antibiotics is conferred by

(a) Plasmid DNA (b) Chromosome (c) Both (a) and (b) (d) None of these

48 ➤ 48. Which is the common organelles that are found in both eukaryotes and prokaryote?

(a) Lysosome (b) Ribosome (c) Vacuole (d) Mitochondria

49 ➤ 49. What is a specialized differentiated form of cell membrane?

(a) Plasmid (b) Nucleosome (c) Mesosome (d) All of these

50 ➤ 50. Infoldings of cell membrane in prokaryotic is called

(a) Mesosomes (b) Lysosomes (c) Both (a) and (b) (d) None of these

51 ➤ 51. What is external to cell wall in a prokaryotic cell?

(a) Glycocalyx layer (b) Plasma membrane (c) Both (a) and (b) (d) None of these

52 ➤ 52. Select the incorrect statement:

(a) Glycocalyx differs in composition and thickness among different bacteria. (b) All organism are made of cells or aggregates of cells. (c) ER helps in synthesis of proteins, lipoproteins and glycogen. (d) Cells of all living organisms have nuclues.

53 ➤ 53. What is external to the plasma membrane in a prokaryotic cell like bacteria?

(a) Glycocalyx layer (b) Cell wall (c) Both (a) and (b) (d) None of these

54 ➤ 54. What is external to glycocalyx layer in prokaryotic cell like bacteria?

(a) Cell wall (b) Plasma membrane (c) Both (d) None of these

55 ➤ 55. What is external to plasma membrane and internal to glycocalyx layer?

(a) Capsule (b) Cell wall (c) Cellular matrix (d) None of these

56 ➤ 56. What is the basis of classification of bacteria’s into gram +ve or gram -ve?

(a) Cell wall (b) Glycocalyx layer (c) Plasma membrane (d) All of these

57 ➤ 57. A bacterial cell was taken and gram staining was done and observed that it did not take up gram stain such a bacteria is known as

(a) Gram positive (b) Gram negative (c) Non-effective to gram stain (d) None of these

58 ➤ 58. Which of the following statement is not true?

(a) Response to gram stain is due to the cell envelop. (b) The cell envelope act as a single protective unit. (c) The glycocalyx layer is similar in all the bacteria. (d) None of these

59 ➤ 59. A loose sheath of glycocalyx layer is called

(a) Plasma membrane (b) Capsule (c) Slime layer (d) Cell wall

60 ➤ 60. What is a thick, tough, layer of glycocalyx known as?

(a) Slime layer (b) Capsule (c) Cell wall (d) Cell envelope

61 ➤ 61. Which of the following is not the function of cell wall?

(a) Interaction with outside world (b) Provide structural support and shape (c) Prevent from bursting and collapsing (d) Exchange of nutrition takes place through it

62 ➤ 62. Which of the following is a form of mesosome?

(a) Vesicles (b) Tubules (c) Lamellae (d) All of these

63 ➤ 63. Which of the following is a function of mesosome?

(a) Cell wall formation (b) DNA replication and its distribution to daughter cells (c) Both (a) and (b) (d) None of these

64 ➤ 64. Which of the following helps in respiration, secretion process,and increase the surface area for enzymatic content?

(a) Plasma membrane (b) Cell wall (c) Mesosomes (d) Glycocalyx layer

65 ➤ 65. In which organisms the pigment containing chromatophores are found?

(a) Algae (b) Cyanobacteria (c) Green algae (d) Amoeba

66 ➤ 66. A thin, filamentous extension of cell wall required for a bacterial motility is called _________.

(a) Hook (b) Flagella (c) Tail (d) Mesosome

67 ➤ 67. Which of the following is not a part of bacteria flagellum?

(a) Filament (b) Hook (c) Basal body (d) None

68 ➤ 68. Of all the parts of flagellum, which one is the longest?

(a) Filament (b) Hook (c) Basal body (b) Fimbriae

69 ➤ 69. Which of the following surface structure of bacteria does not take part in motility?

(a) Flagella (b) Pilli (c) Fimbriae (d) Both (b) and (c)

70 ➤ 70. Which is the elongated tubular structure made of special protein on the surface of bacterial cell?

(a) Flagella (b) Fimbriae (c) Pilli (d) All of these

71 ➤ 71. What is the small bristle like structures or fibres sprouting out of the cell?

(a) Flagella (b) Fimbriae (c) Pilli (d) All of thes

72 ➤ 72. In prokaryotes, the ribosomes are associated with which structure of cell?

(a) Cell wall (b) Mesosome (c) Lysosomes (d) Plasma membrane

73 ➤ 73. What is the size of ribosomes?

(a) 10-20 μm (b) 15-20 nm (c) 10-20 nm (d) 15-20 cm

74 ➤ 74. In 70S prokaryotic ribosomes, what are the sub units present in them?

(a) 50S and 20S (b) 50S and 30S (c) 40S and 30S (d) 60S and 30S

75 ➤ 75. A polysome is a chained structure of which organelle?

(a) Lysosome (b) Mesosome (c) Ribosome (d) All of these

76 ➤ 76. In polyribosome, the ribosomes attach to which RNA?

(a) m-RNA (b) t-RNA (c) r-RNA (d) All of these

77 ➤ 77. In what form, the reserve material in prokaryotic cells are stored in cytoplasm?

(a) Lysosome (b) Mesosome (c) Ribosome (d) Inclusion bodies

78 ➤ 78. Which of the following are not inclusion bodies?

(a) Phosphate granules (b) Cyanophycean granules (c) Glycogen granules (d) Glucose granules

79 ➤ 79. Gas vacuoles are found in

(a) Blue-green bacteria (b) Purple bacteria (c) Green photosynthetic bacteria (d) All of these

80 ➤ 80. Which of the following does not belong to eukaryote?

(a) Protists (b) Bacteria (c) Fungi (d) All of these

81 ➤ 81. In eukaryotic cells, why there is an extensive compartmentalization of cytoplasm?

(a) Due to the presence of fibres (b) Due to the presence of so many organelles (c) Due to the presence of membranous organelles (d) All of these

82 ➤ 82. The chemical studies on cell membrane that was deduced to its possible structure was mostly done on which cells?

(a) WBC (b) Human erythrocytes (c) Platelets (d) Cheek cells

83 ➤ 83. In plasma membrane, the lipids have their polar heads facing

(a) Outer side (b) Inner side (c) In the middle (d) Stable facing nowhere

84 ➤ 84. The lipid component of plasma membrane will be mainly constituted of

(a) Glycolipids (b) Glycogen (c) Phosphoglycerides (d) All of these

85 ➤ 85. Identify the A, B, C and D in this figure.

(a) A–Lipid bilayer, B–Protein, C–Sugar, D–Cholesterol (b) A–Protein, B–Lipid bilayer, C–Cholesterol, D–Sugar (c) A–Protein, B–Sugar, C–Lipid bilayer, D–Cholesterol (d) A–Cholesterol, B–Protein, C–Sugar, D–Lipid bilayer

86 ➤ 86. Which of the following are not the component of plasma membrane?

(a) Sugar (b) Protein (c) Cholesterol (d) None of these

87 ➤ 87. What is the percentage of proteins and lipids in an RBC membrane respectively?

(a) 52%, 40% (b) 50%, 40% (c) 50%, 42% (d) 52%, 42%

88 ➤ 88. Which of the following membrane proteins lie on the surface of the cell?

(a) Integral proteins (b) Peripheral proteins (c) Both (a) and (b) (d) Glycoproteins

89 ➤ 89. Which of the following membrane proteins are partially or totally buried in cell membrane?

(a) Integral proteins (b) Peripheral proteins (c) Both (a) and (b) (d) Glycoproteins

90 ➤ 90. The fluid mosaic model was given by Singer and Nicolson in the year _________

91 ➤ 91. The ability of proteins to move laterally within the membrane is measured as

(a) Mobility (b) Flexibility (c) Fluidity (d) None of these

92 ➤ 92. For what reason, the fluid nature of membrane is important?

(a) Cell growth (b) Secretions (c) Endocytosis (d) All of these

93 ➤ 93. The most important function of plasma membrane is that it

(a) Divides the cell (b) Gives shape to the cell (c) Transports the molecules across (d) Both (a) and (b)

94 ➤ 94. In which kind of transport, the molecules move across without the utilization of energy?

(a) Passive transport (b) Osmosis (c) Both (a) and (b) (d) Active transport

95 ➤ 95. Movement of water across the plasma membrane occurs by

(a) Passive transport (b) Osmosis (c) Active transport (d) All of these

96 ➤ 96. In which kind of transport, the molecules will go against the concentration gradient?

(a) Passive transport (b) Active transport (c) Facilitated transport (d) All of these

97 ➤ 97. In which of the following does active transport take place?

(a) Pumps (b) Carrier protein transport c) Ion channels (d) Diffusion

98 ➤ 98. The functions of cell wall in eukaryotic cells

(a) Give shape to cell (b) Prevent from mechanical damage (c) Protects from infection (d) All of these

99 ➤ 99. Which of the following organisms have cell wall made up of cellulose, galactans, mannans, and minerals like calcium carbonates?

(a) Fungi (b) Plants (c) Algae (d) All of these

100 ➤ 100. Which of the following organisms have cell wall made up of cellulose, hemicelluloses, pectins and proteins?

(a) Fungi (b) Plants (c) Algae (d) All of these

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