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

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1. Cell organelle which divides the intracellular space into luminal and extra luminal compartments and has rough surface is frequently observed in the cells actively involved in-
2. Ribosome is composed of:
3. Protein synthesis in an animal cell occurs
4. Gas vacuole can be found in the members of kingdom
5. Active transport requires:
6. Microfilaments are composed mainly of a protein called
7. Which of the following statements is incorrect for Centrioles?
8. Ribonucleic acid occurs in:
9. Longest portion of bacterial flagella is
10. The shorter and longer arms of sub-metacentric chromosome are:
11. ..... increases the surface area for mitochondrial activity.
12. Which part of the bacteria contains Peptidoglycan?
13. Reserve material in prokaryotic cells are stored in the cytoplasm in the form of
14. Assertion:Mitochondria and chloroplasts are semi-autonomous organelles.Reason:Mitochondria and chloroplast are devoid of ribosomes.
15. Which one is the mis-matched pair?
16. Centrioles help in formation of:
17. Which of the following is a differentiating structure between E. coli and H. sapiens?
18. A student is developing a model to show how proteins are synthesized. Which organelles should be included in the model?
19. Which of the following is an example of Gram Negative Bacteria?
20. Mitochondria is an organelle of which process?
21. Select one which is not true about ribosomes?
22. The plasma membrane consists mainly of
23. ..... are 'factories' for the syntesis of proteins.
24. Which of the following is a main source of cellular membranes?
25. If mitochondria is absent in mature RBC what will be the source of energy:
26. Chemical modification of substances like glycosylation of proteins and lipid occurs in:
27. Which of the following statements regarding the mitochondrial membrane is not correct?
28. Starch, glycogen, phosphates and sulphates are stored in the cytoplasm in the form?
29. Which cell organelle participates in photo-respiration .....
30. ..... are the microbodies, which take part in glyoxylate pathway, bounded by a single membrane and are usually present in germinating fatty seeds.
31. Assertion:Na+-K+ ATPase is an important membrane associated enzyme. Reason:It helps in ion transfer across the membrane
32. Which one of the following has is own DNA?
33. Nucleolus is the site of:
34. Eukaryotic ribosome, chloroplast and mitochondrion are respectively
35. Secondary cell wall consists of
36. Homologous chromosomes can be defined as:
37. Statement I-Eukaryotic ribosomes are of 80S type having two subunits-50S and 30S.Statement II-Here 'S' (Svedberg's Unit) stands for the sedimentation coefficient; it is indirectly a measure of density and size.
38. Enzymes are synthesized on:
39. Principal constituents of chromosomes are:
40. Golgi Apparatus have originated from the-
41. The fluidity of membrane sin plant in cold weather may be maintained by-
42. Which of the following pairs is mismatched?
43. The microbody primarily found in seeds of castor and sunflower is
44. Which one of the following is correct for transmembrane proteins in lipid bilayer?
45. Bacteria are each composed of one cell that does not have a membrane-bound organelle. What two terms characterize bacteria?
46. Cells which are secretory in functional have abundant
47. Organelle X bears ribosomes on its outer surface. Organelle X and organelle Y together give rise to organelle Z which is often referred to as 'Suicide bag' of cells. Identify organelles X, Y and Z and select the incorrect option regarding them.
48. The chromosomes in which centromere is situated close to one end are
49. All the statements are correct except-
50. The two sub units of ribosome remain united a critical in level of
51. Basal bodies of cilia and flagella are derived from .....
52. Which of the following components in cell controls all activities in the cell and contains chromosomes consisting of DNA?
53. Extension of plasma membrane in prokaryotic cell is
54. Which of the following is true about the internal structure of axoneme
55. Rough endoplasmic reticulum is mainly involved in:
56. Which chemical property is shared by all types of lipids forming the plasma membrane?
57. Many ribosomes may associate with a single mRNA to form multiple copies of a polypeptides simultaneously such strings of ribosomes are termed as
58. Which one of the following pairs is correctly matched [MP PMT 1993] A) Microsomes Participate in the process of photosynthesisB) Lysosomes Involved in synthesizing acids C) Endo. Reticulum Plays role in the formation of a new nuclear membrane during cell division D) Centrosomes Provide enzymes required in the digestive process
59. Which of the following events does not occur in rough endoplasmic reticulum?
60. Extranuclear inheritance is due to the presence of genes in
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