- 1(current)
Q. No.The approximate percent composition of proteins and lipids in the cell membrane of an erythrocyte is respectively:
| 1. | 52% and 40% | 2. | 40% and 52% |
| 3. | 60% and 40% | 4. | 40% and 60% |
Subtopic: Cell Membrane |
88%
Level 1: 80%+
Hints
Identify the correct statement(s) regarding the structure of a typical cell membrane:
| I: | The lipid component mainly consists of phosphoglycerides. |
| II: | Peripheral proteins are either lying on the surface of the membrane or partially buried in it. |
| III: | Carbohydrates are not a component of cell membrane. |
| IV: | Cholesterol is a lipid and is a part of the cell membranes of animal cells. |
| 1. | Only I | 2. | II and III only |
| 3. | I and IV only | 4. | II and IV only |
Subtopic: Cell Membrane |
59%
Level 3: 35%-60%
Hints
Sodium ions will be transported to the outside of the cell and potassium ions to the inside of the cell by:
| 1. | simple diffusion | 2. | facilitated diffusion |
| 3. | osmosis | 4. | active transport |
Subtopic: Cell Membrane |
81%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Which of the following movement across a cell membrane will require the utilisation of ATP energy?
| 1. | Movement of neutral solutes along the concentration gradient. |
| 2. | Osmosis of water from higher to lower concentration. |
| 3. | Movement of polar molecules along the concentration gradient facilitated by a carrier protein. |
| 4. | Transport of ions against their concentration gradient. |
Subtopic: Cell Membrane |
85%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
- 1(current)
Q. No.
© 2026 GoodEd Technologies Pvt. Ltd.