Question

Define Active and passive transport. Give any one example of each

Answer 1

Answer:

“Active transport is the movement of molecules across a membrane from a region of lower concentration to a region of higher concentration against the concentration gradient, often assisted by enzymes and requires energy”

“Passive transport is the movement of ions and molecules across the cell membrane without requiring energy.”

Examples of active transport include sodium-potassium pump, uptake of mineral ions by the roots of the plants, etc.

Examples of passive transport include the exchange of gases in the alveoli of the lungs and the exchange of nutrients in the kidneys.

Answer 2

Answer:

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