Biologyhard · Past Paper
What is the main function of the 'Casparian strip' found in roots?
ATo speed up water transport
BTo block water and minerals from leaking back
CTo provide mechanical strength
DTo store starch
✓ Correct Answer: B — To block water and minerals from leaking back
The Casparian strip in the endodermis forces water to pass through the cell membrane, regulating nutrient uptake.
Share this question
More from Biology
- Which generation is produced by crossing two pure parents with contrasting traits?
- What is the term for animals that remain active during the day?
- Which of the following is a complex permanent tissue?
- The process of water movement through a semi-permeable membrane from a dilute solution to a concentrated one is:
- Which of the following is present in a plant cell but absent in an animal cell?