Question 90

(Multiple Choice)

Plants and animals can be said to have similar needs,because both require water,food,and minerals for growth and survival.In plants,water enters the root through root hairs and then moves through the root cortex into the vascular tissue and into the shoots.The endodermis,with Casparian strips in the endodermal cells,controls entry into the vascular cylinder.
-If a mutation occurred and Casparian strips were not produced in root endodermal cells,what would happen to the plant?


A)Water movement depends on transpiration; the plant would keep photosynthesizing and growing.
B)The plant would not be able to regulate uptake of water and ions into the rest of the plant and the plant would not grow.
C)Water and ions would have to move via an alternative pathway.
D)Entry of water and ions would occur via root hairs and the plant would continue to grow.

Answer