DENDROLOGY

TREE PHYSIOLOGY

RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Root hairs collect O2 from ____
A
Water
B
Air
C
Soil spaces
D
Both 1 and 2
Explanation: 

Detailed explanation-1: -A plant’s roots absorb air from the gaps between soil particles. The air in the soil particles comes into touch with the root hairs. The oxygen in soil particles diffuses into root hair and reaches all of the root’s cells, where it is used in respiration.

Detailed explanation-2: -Plant respiration happens not only in the leaves, but also through the root system. In root systems, oxygen (O2) in soil pores diffuses into the root hairs and gets transported to all parts of the roots.

There is 1 question to complete.