Select the correct matching in the following pairs.
1. | Smooth ER—Oxidation of phospholipids |
2. | Smooth ER—Synthesis of lipids |
3. | Rough ER—Synthesis of glycogen |
4. | Rough ER—Oxidation of fatty acids |
The endomembrane system of a eukaryotic cell does not include:
1. Endoplasmic reticulum
2. Lysosome
3. Vacuole
4. Peroxisome
Match the following columns and select the correct option:
Column-I | Column-II | ||
(a) | Smooth endoplasmic reticulum |
(i) | Protein synthesis |
(b) | Rough endoplasmic reticulum |
(ii) | Lipid synthesis |
(c) | Golgi complex | (iii) | Glycosylation |
(d) | Centriole | (iv) | Spindle formation |
Options: | (a) | (b) | (c) | (d) |
1. | (ii) | (i) | (iii) | (iv) |
2. | (iii) | (i) | (ii) | (iv) |
3. | (iv) | (ii) | (i) | (iii) |
4. | (i) | (ii) | (iii) | (iv) |
All the following are the part of a eukaryotic cell endomembranous system except:
1. Vacuole
2. Lysosome
3. Golgi complex
4. Mitochondria
Examine the figure given below and select the part correctly matched with its function/structure
1. | Part (A) : Ribosome-made up of 30S and 50S subunits |
2. | Part (C) : RER - principally performs the function of packaging materials |
3. | Part (D) : Nuclear pore - passage through which movement of RNA takes pace in one direction only |
4. | Part (B) : SER - synthesis of steroidal hormones |
Which of the following synthesizes proteins for export?
1. Free ribosomes
2. SER
3. Lysosome
4. RER
Choose the correct option with respect to function of the cell organelles
A | B |
C |
D | |
1. | Protein synthesizes |
Citric acid cycle enzymes |
Protein processing |
Lipid modification |
2. | mRNA synthesis |
ETS | Glyco- sidation |
Protein processing |
3. | Trans- cription |
Anaerobic respiration |
Secretion | Sex hormone production |
4. | rRNA synthesis |
Pyruvate dehydro- genase complex |
Protein modification |
Protein synthesis |
SER and RER can be distinguished with its presence in
1. | protein synthesising cells |
2. | protein and fat synthesising cells |
3. | carbohydrates and fat synthesising cells |
4. | lipid and protein synthesising cells |
Which of the following statements are correct?
a. | The rough endoplasmic reticulum is frequently observed in the cells actively involved in protein synthesis. |
b. | Proteins that are to be used outside the cell are synthesized on free ribosomes. |
c. | In the eukaryotic cell there is an extensive compartmentalization of cytoplasm through the presence of membrane-bound organelles |
d. | ER is found prominently in human eggs and sperms. |
1. All are correct
2. b & d
3. a, b & d
4. a & c
The granular endoplasmic reticulum is not associated with which of the following functions?
1. | Synthesis of secretory as well as non-secretory proteins |
2. | Synthesis of non-secretory proteins |
3. | Synthesis of steroidal hormones |
4. | Synthesis of secretory proteins |