Mineral Nutrition In Plants Question 168

Question: If the amount of an ion absorbed by a root hair cell at $ 0{}^\circ C $ is 5 gm and at $ 20{}^\circ C $ is 20 gm. The amount of this ion absorbed actively should be

Options:

A) 25 gm

B) 20 gm

C) 15 gm

D) 5 gm

Show Answer

Answer:

Correct Answer: C

Solution:

At $ 0^{o}C $ , 5 gm ions are absorbed and at $ 20^{o}C $ , 20gm ions are absorbed.

Energy is increased from $ 0^{o}C $ to $ 20^{o}C $ , then the increase in ion absorption amount = 20 - 5 =15 gm.