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Class 11 Biology Chapter 8 Cell The Unit Of Life Quiz 4 (60 MCQs)

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1. The chromosome in which centromere lies slightly away from the middle of the chromosome resulting into one shorter arm and one longer arm, is called as
2. Glycocalyx (mucilage sheath) of a bacterial cell may occur in the form of a loose sheath called ..... or it may be thick and tough called .....
3. Which organelle is present only in plants .....
4. Identify the organelle-a) cartwheel like arrangementb) 9+2 arrangementc) stores proteinsd) osmoregulation
5. Site of actin and tubulin synthesis is
6. A. Prokaryotic cells lack a true nucleus.B. Eukaryotic cells contain membrane-bound organelles.C. Prokaryotic DNA is circular and naked.D. Eukaryotic DNA is linear and associated with histone proteins.Chose the correct answer
7. ..... is frequently observed in the cells actively involved in protein synthesis and secretion.
8. Carbohydrate chains of plasma membrane are present on:
9. A pile of thylakoids in the stroma is referred to as
10. Endoplasmic reticulum is involved in all of the following except:
11. The small size of the cell allows a larger ..... ratio.
12. The endoplasmic reticulum bearing ribosomes on their surface is called .....
13. Histone proteins found in nuclei of eukaryotes are .....
14. In some prokaryotes like cyanobacteria, there are other membranous extensions into the cytoplasm called ..... which contain pigments.
15. ASSERTION-Some cells like amoeba have changing shapes.REASON-Prokaryotic cells born with some specific character like change of shape.a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.c) Assertion is true but Reason is false.d) Both Assertion and Reason are false.
16. Extrachromosomal DNA
17. Glyoxysomes are found in:
18. The outer membrane of the vacuole is called a .....
19. Which structures perform the function of mitochondria in bacteria?
20. Complete the following:Flagella = Filament+ Hook+ .....
21. Which of the following pairs lack the unit membrane?
22. Cell envelope which provides structural support and shape to the cell
23. Match the columns.1. Cytoskeleton-A. hair-like outgrowth2. Flagella-B. proximal region of centriole3. Hub-C. bristle-like structures4. Fimbriae-D. filamentous protein structure
24. Which component helps in the formation of spindle fibers during M-phase in Plant cell
25. Which one of these is not a eukaryote?
26. Naked DNA found in the cytoplasm of prokaryotic cells is
27. The mitochondria divide by .....
28. DNA is not present in
29. The ..... is the major site for synthesis of lipid.
30. Depending upon the ..... , membrane proteins can be classified as integral or peripheral:
31. Which of the following statment is incorrect regarding ribosome?
32. The middle lamella in plant cell is a layer mainly consisting of ..... which holds or glues the different neighbouring cells together.
33. The function of the lysosomes is as follows .....
34. The number of mitochondria increases in cells of .....
35. Substance which is synthesized in Golgi body is:
36. Read the given statements and select the correct option.Statement 1:The cisternae in Golgi complex have cis face and trans face.Statement 2:The cis face is also called forming face and trans face is also called maturing face.
37. Large subunit for ribosomes is 50S. Here 'S' stands for?
38. Which type of cells do not have a nucleus or membrane-bound organelles?
39. Which of the following feature is common to prokaryotes and many eukaryotes?
40. Granules are in the form of ..... in the animal cells.
41. Middle lamella of plant cell wall is mainly composed of:
42. Centrioles arise from
43. The animal cell with 52% protein and 40% lipids in outer limiting membrane is
44. ..... is the fundamental, structural and functional unit of all living beings.
45. The condition when a large number of nucleus are found due to the absence of cytpolasmic division (which happens after telophase stage). This condition are called .....
46. The maximum magnification that can be achieved by a compound microscope is ..... the size of the object.
47. Arrangement of microtubules in a flagellum and a centriole is respectively
48. Folding of inner membrane of mitochondria are called
49. A ..... is the smallest unit of life that can be considered alive.
50. DNA content remains 4C during:
51. The mitochondrial DNA differs from the nuclear DNA because of .....
52. Prokaryotic flagella possess .....
53. Which of the following options is true for a secretory cell?
54. The plastid most likely to be found in the cells of a peel of a potato is .....
55. Click the correct order of cell organisation.
56. Which of the following protein is being synthesized in the S phase of Interphase?
57. What is often referred to as the control center of the cell?
58. Which one of the cellular parts is correctly described .....
59. What is true about genetic material of a prokaryotic cell?
60. In which of the following places messenger RNA is formed in a living cell .....
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