Cell: The Unit of Life · Question 20

Mesosome in a cell is a :

1. Membrane bound vesicular structure
2. Chain of many ribosomes attached to a single mRNA
3. Special structure formed by extension of plasma membrane
4. Medium sized chromosome

Match List-I with List-II :

1. A-II, B-I, C-IV, D-III
2. A-IV, B-I, C-II, D-III
3. A-I, B-II, C-III, D-IV
4. A-II, B-III, C-IV, D-I

Match List-I with List-II. Choose the correct answer from the options given below:

1. A-II, B-I, C-IV, D-III
2. A-IV, B-I, C-II, D-III
3. A-IV, B-I, C-III, D-II
4. A-IV, B-III, C-I, D-II

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below.

1. Statement I is true but Statement II is false.
2. Statement I is false but Statement II is true.
3. Both Statement I and Statement II are true
4. Both Statement I and Statement II are false

Which of the following are NOT considered as the part of endomembrane system? Choose the most appropriate answer from the options given below:

1. A, C and E only
2. A and D only
3. A, D and E only
4. B and D only

Which of the following functions is carried out by cytoskeleton in a cell?

1. Protein synthesis
2. Motility
3. Transportation
4. Nuclear division

Match List I with List II. Choose the correct answer from the options given below:

1. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
2. (a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)
3. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
4. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

Which of the following statements with respect to Endoplasmic Reticulum is incorrect?

1. RER has ribosomes attached to ER
2. SER is devoid of ribosomes
3. Only RER are present in prokaryotes
4. SER are the sites for lipid synthesis

Which type of substance would face difficulty to pass through the cell membrane?

1. Substance soluble in lipids
2. Substance with hydrophobic moiety
3. Substance with hydrophilic moiety
4. All substances irrespective of hydrophobic and hydrophilic moiety

If the pH in lysosomes is increased to alkaline, what will be the outcome?

1. Lysosomal enzymes will be more active
2. Hydrolytic enzymes will function more efficiently
3. Hydrolytic enzymes will become inactive
4. Lysosomal enzymes will be released into the cytoplasm