Ques. 1AIPMT 2001
Passive absorption of minerals depends on
- temperature
- temperature and metabolic inhibitor
- metabolic inhibitor
- humidity
Answer
(1) temperature
Solution
Passive absorption of mineral ions takes place by diffusion and ion exchange along a concentration gradient; it does not use metabolic energy (ATP).
∴ It is not affected by metabolic inhibitors, but the rate of diffusion increases with temperature.
⇒ Passive absorption depends on temperature.
Answer: (1)
Out of syllabus