AP BIOLOGY

PLANTS

TRANSPORT IN PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A young plant is dug and then re-planted. Later, the plant wilts. What causes the wilting?
A
The leaves lose less water
B
The roots cannot take up mineral ions
C
The stomata close
D
The surface area of the roots is reduced.
Explanation: 

Detailed explanation-1: -Expert-Verified Answer. When young plant is dug up and re-planted in another place it’s roots cannot take up mineral salt (option B) When a plant is dug up, there is a certain damage to its organs. A plants roots are strongly rooted in the soil so when the plant is dug up some roots may break away from the plants body.

Detailed explanation-2: -A plant which is newly dug up and shifted to another place may show signs of wilting leaves, dying branches or it might die altogether. It is called transplant shock. The transplant shock is caused by harm to the plant roots during the transplanting process.

Detailed explanation-3: -Wilting can be caused by drought or waterlogged soil Plants wilt when roots are unable to supply sufficient moisture to the stems and leaves. Wilting for short periods of time does not harm plants. Sometimes a plant wilts on a hot day because moisture is evaporating from the leaves faster than the roots can take it up.

Detailed explanation-4: -The collapse of leaves due to loss of water (flaccidity) is called wilting.

There is 1 question to complete.