Cell: The Unit of Life · Question 24

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

Pathogenic bacteria gain resistance to antibiotics due to changes in their :

1. Nucleoid
2. Cosmids
3. Plasmids
4. Nucleus

Which of the following is an incorrect statement?

1. Nuclear pores act as passages for proteins and RNA molecules in both directions between nucleus and cytoplasm
2. Mature sieve tube elements possess a conspicuous nucleus and usual cytoplasmic organelles
3. Microbodies are present both in plant and animal cells
4. The perinuclear space forms a barrier between the materials present inside the nucleus and that of the cytoplasm

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

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

When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as :

1. Acrocentric
2. Metacentric
3. Telocentric
4. Sub-metacentric