9th class Biology Chapter no.4 MCQs
Unit no.4 MCQs of 9th Class Biology
Cell Biology:
1. There are ……… micrometers in one millimeter?
a. 1000
b. 10
c. 10000
d. 100
2. The use of microscope is called:
a. Compound microscope
b. Magnification
c. Microscopy
d. Resolution
3. The first microscope was developed by:
a. Aristotle
b. Zacharias Janssen
c. Robert Brown
d. Matthias schleden
4. Human eye can distinguish two objects placed at a distance of:
a. 0.08 mm
b. 0.05 mm
c. 0.5 mm
d. 0.1 mm
5. A photograph taken from a microscope is called a:
a. Micrograph
b. Microscopy
c. Magnification
d. Resolution
6. Magnification of light microscope is:
a. 750 X
b. 300 X
c. 3500 X
d. 1500 X
7. Resolving power of light microscope is:
a. 0.3 um
b. 0.1 um
c. 0.4 um
d. 0.2 um
8. The resolution of human eye is:
a. 0.3 um
b. 0.1 mm
c. 0.4 um
d. 0.2 mm
9. The movement of amoeba can be studied by:
a. Electron microscope
b. Transmission electron microscope
c. Hand lens
d. Light microscope
10. When was nucleus discovered in a plant cell?
a. 1833 AD
b. 1831 AD
c. 1834 AD
d. 1664 AD
11. Who discovered nucleus in a cell in 1831?
a. Schleiden
b. L. Pasteur
c. Robert Brown
d. Schwann
12. The scientist who firstly introduced the cell:
a. Robert Hooke
b. Robert Brown
c. Schwann
d. Aristotle
13. Robert Hooke is a/an ……… scientist:
a. British
b. Iranian
c. Arabic
d. Greek
14. Robert Hooke used microscope to examine cork in:
a. 1560
b. 1958
c. 1470
d. 1965
15. “All cells are formed from pre-existing cells.” Is the
saying of:
a. Darwin
b. Pasteur
c. Rudolf Virchow
d. Robert Hooke
16. The first microscope was made in:
a. 1595
b. 1995
c. 1685
d. 1895
17. Cell was discovered in:
a. 1974
b. 1665
c. 1995
d. 1965
18. Who discovered nucleus in plant cell?
a. Leueen Hook
b. Robert Hooke
c. Schwann
d. Robert Brown
19. Which of these materials is not a component of the cell membrane?
a. Proteins
b. Lipids
c. DNA
d. Carbohydrates
20. The ……… is major component of plant cell walls.
a. Cellulose
b. Chitin
c. Cholesterol
d. Peptidoglycan
21. The ….is the membrane enclosed structure in eukaryotic cells that contains the DNA of the cell.
a. Nucleolus
b. Mitochondrion
c. Nucleus
d. Chloroplast
22. Ribosomes are constructed in the?
a. Nucleolus
b. Endoplasmic
c. Nuclear pore.
d. Nucleoid
23. Rough endoplasmic reticulum is the area in a cell where ……. are synthesized.
a. Lipids
b. Polysaccharides
c. DNA
d. Proteins
24. Smooth endoplasmic reticulum is the area in a cell where ……. are synthesized.
a. Lipids
b. Polysaccharides
c. DNA
d. Proteins
25. The mitochondrion functions in…….?
a. Photosynthesis
b. Lipid storage
c. Cellular respiration
d. Protein synthesis
26. The thin extensions of the inner mitochondrial membrane are known as:
a. Thylakoids
b. Cristae
c. Stroma
d. Matrix
27. The chloroplast functions in:
a. Photosynthesis
b. ATP synthesis
c. DNA replication
d. Protein synthesis
28. Which of these cellular organelles have their own DNA?
a. Mitochondrion
b. Chloroplast
c. Nucleus
d. All of these
29. Cell walls are found in these organisms, except for:
a. Bacteria
b. Plants
c. Fungi
d. Animals
30. Which one is the main component of a plant cell wall?
a. Cellulose
b. Chitin
c. Cholesterol
d. Peptidoglycan
31. Which of these do not have cell wall?
a. Prokaryotes
b. Fungi
c. Protozoa
d. Algae
32. What is called the layer of cutin in plants?
a. Cortex
b. Cuticle
c. Leaf hairs
d. Epidermis
33. Fluid mosaic model belongs to:
a. Dermis
b. Cell wall
c. Pericycle
d. Cell membrane
34. The fluidity of cell membrane is due to:
a. Lipids
b. Protein
c. Glycerine
d. Vitamin
35. Elasticity of cell membrane is due to:
a. Cristae
b. Lipid
c. Vitamin
d. Water
36. The stock of thylakoids is called:
a. Cristae
b. Leucoplast
c. Granum
d. Struma
37. Which of the following is not a part of a cell membrane?
a. Carbohydrates
b. DNA
c. Lipids
d. Minerals
38. The organelle which produces energy is called:
a. Nucleus
b. Ribosome
c. Mitochondria
d. Vacuole
39. The cell responsible for coordination in body is:
a. Heart cell
b. Bone cell
c. Skin cell
d. Nerve cell
40. Which of the following is a site of protein synthesis?
a. Mitochondria
b. Ribosomes
c. Nucleus
d. Vacuole
41. The number of sub units of ribosomes is:
a. Six
b. Tow
c. Eight
d. Four
42. Where are ribosomes synthesized?
a. Nucleolus
b. Endoplasmic reticulum
c. Nuclear pore
d. Nucleotide
43. Which of the following is involved in aerobic respiration?
a. Ribosomes
b. Mitochondria
c. Vacuole
d. Endoplasmic reticulum
44. In cell aerobic respiration sites are:
a. Mitochondria
b. Golgi bodies
c. Chloroplast
d. Ribosomes
45. The function of mitochondria is:
a. Protein synthesis
b. Lipid storage
c. Photosynthesis
d. Cellular respiration
46. Rough endoplasmic reticulum serves a function in the synthesis of:
a. Lipids
b. Carbohydrates
c. Vitamin
d. Protein
47. Which of the organelles have their own DNA?
a. Mitochondria
b. Endoplasmic reticulum
c. Golgi bodies
d. Ribosomes
48. Golgi was awarded Nobel prize in:
a. 1906
b. 1908
c. 1916
d. 1807
49. Which of these major bio elements is in the highest percentage in living bodies?
a. C
b. O
c. H
d. N
50. The flattened sacs in a cell are called:
a. Cisternae
b. Thylakoid
c. Centriole
d. Cristae
51. Colourless plastids are called:
a. Chromoplast
b. Chloroplast
c. Etioplast
d. Leucoplast
52. Who discovered lysosomes?
a. King
b. TWK
c. Duve
d. Brown
53. Major component of plant cell wall is:
a. Cellulose
b. Chitin
c. Cholesterol
d. PeptidoglyCan
54. Ribosomes are sites for synthesis of:
a. DNA
b. Proteins
c. Glucose
d. RNA
55. Struma is found in:
a. Golgi body
b. Mitochondria
c. Chloroplast
d. Ribosome
56. The most common chemical in primary cell wall is:
a. Fructose
b. Glucose
c. Maltose
d. Cellulose
57. The major energy production centers are:
a. Ribosomes
b. Plastids
c. Golgi bodies
d. Mitochondria
58. Cisternae belongs to:
a. Vacuole
b. Mitochondrion
c. Nucleus
d. Golgi apparatus
59. Lysosomes were discovered by
a. Schleden
b. Christian Rene De Duve
c. Robert Brown
d. Camillo Golgi
60. The site where ribosomal RNA is formed is called:
a. Mitochondria
b. Chromatin
c. Nucleolus
d. Cytoplasm
61. The ribosomes are made in:
a. Endoplasmic
b. Nucleus
c. Reticulum
d. Nucleolus
62. Microtubules are made up of ……… proteins:
a. Actin
b. Hemoglobin
c. Tubulin
d. Myoglobin
63. The outermost layer of cell wall is made up of:
a. Lignin
b. Cellulose
c. Chitin`
d. All
64. Microfilaments are made up of a protein:
a. Flagellum
b. Actin
c. Myosin
d. Tubulin
65. In the cell wall of a plant the chemical present is called:
a. Sodium
b. Potassium
c. Cellulose
d. Chitin
66. Cell wall is absent in:
a. Bacteria
b. Plants
c. Animals
d. Fungi
67. The secondary cell wall of plant cell is made up of:
a. Lignin
b. Cellulose
c. Chitin
d. All of these
68. The cell wall of fungi is made up of:
a. Chitin
b. Cellulose
c. Peptidoglycan
d. Lignin
69. The cell wall of prokaryotes is made up of:
a. Chitin
b. Cellulose
c. Peptidoglycan
d. Lignin
70. The diameter of human red blood cell is:
a. 8 um
b. 0.5 um
c. 0.2 um
d. 3 um
71 The size of red blood cells is:
a. 40.2 um
b. 20.2 um
c. 120.2 um
d. 30.2 um
72. Gas exchange in gills and lungs occurs by the process:
a. Active transport
b. Diffusion
c. Turgor
d. Osmosis
73. The movement of molecules from an area of lower concentration to the area of higher concentration is called:
a. Passive transport
b. Diffusion
c. Active transport
d. Osmosis
74. The movement of molecules from an area of higher concentration to the area of lower concentration is called:
a. Diffusion
b. Osmosis
c. Passive transport
d. Active transport
75. Plant tissues which have ability to divide are:
a. Support tissues
b. Epidermal tissues
c. Meristematic tissues
d. Ground tissues
76. Which types of muscles are responsible for bird’s wings flapping?
a. Cardiac muscles
b. Skeletal muscles
c. Epithelial tissues
d. Smooth muscles
77. Permanent tissues originate from the tissues:
a. Ground
b. Epidermal
c. Xylem
d. Merisstematics
78. Cardiac muscles are present in walls of:
a. Kidney
b. Lungs
c. Stomach
d. Heart
79. The tissues which are made up of single type of cells are called:
a. Support tissues
b. Permanent tissues
c. Simple tissues
d. Compound tissues
80. Polymer of amino acids and sugars is:
a. Phospholipid
b. Peptidoglycan
c. Glycogen
d. Glycolipid
81. Bone is an example of:
a. Connective tissue
b. Epithelial tissue
c. Muscle tissue
d. Nervous tissue
82. Heart beat is made by:
a. Cardiac muscles
b. Smooth muscles
c. Epithelial tissues
d. Skeletal muscles
83. The study of animal tissues is done by:
a. Robert Hooke
b. Rudolf Virchow
c. Louis Pasteur
d. Theoder Schwann
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