Question
Define osmosis. Explain the difference between active transport and passive transport.
✓
Answer
Osmosis:
Osmosis is the process in which solvent molecules diffuse from higher concentration to lower concentration through a semipermeable membrane.
Osmosis is the process in which solvent molecules diffuse from higher concentration to lower concentration through a semipermeable membrane.
| S.No. | Active Transport | Passive Transport |
| 1. | Energy is expended in this transportation. | This transportation does not require energy. |
| 2. | It acts against the electrochemical concentration gradient. | It operates according to the electrochemical concentration gradient. |
| 3. | This is a living or biochemical process. | This is a kind of physical activity. |
| 4. | This process is accomplished with the help of carriers. | In passive transportation, carriers do not participate. |
| 5. | This is a fast moving process. | This is a relatively slow process. |
| 6. | This method is a selective action used for selected substances. | Generally this is an unselective action. |
| 7. | This is a one-directional process. | Whereas this is a two-way action. |
| 8. | Due to this method, fixed osmotic concentration is maintained in the liquid inside and outside the cell. | It is not helpful in maintaining the osmotic concentration of fluid inside and outside the cell. |
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Explain the process of inspiration under normal conditions.
Calcium plays a very important role in the formation of bones. Write on the role of endocrine glands and hormones responsible for maintaining Calcium homeostasis.
Write the main characteristics of Chondrichthyes fishes.
In the following flow chart, replace the symbols a,b,c and d with appropriate terms. Briefly explain the process and give any two application of it.
How do you distinguish between a skeletal muscle and a cardiac muscle?
Discuss the role of Ca2+ ions in muscle contraction. Draw neat sketches to illustrate your answer.
What are the disorders related to circulation? Describe each.
Draw a schematic diagram showing the relationship between the pituitary gland and the hypothalamus and describe the hormones secreted by the adenohypophysis.
Name the two important enzymes of C2 and C4 pathway, respectively? What important role do they play in fixing CO2?
Nucleic acids exhibit secondary structure. Describe through WetsonCrick Model.