AP BIOLOGY

PLANTS

TRANSPORT IN PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Xylem vessels are dead and have no cytoplasm. This helps it so ____
A
water flow is not slowed down
B
it forms an empty tube for water to flow through
C
water and minerals can enter and leave the cells
Explanation: 

Detailed explanation-1: -The cells have no organelles or cytoplasm, which creates more space inside the vessel for transporting water.

Detailed explanation-2: -Their cytoplasm is highly reduced and they only perform the function of conduction. The xylem tissues also lack cell organelles. Therefore, they are considered dead.

Detailed explanation-3: -Mature xylem vessels: contain no cytoplasm. are impermeable to water. have tough walls containing a woody material called lignin.

Detailed explanation-4: -Xylem vessels always push water upwards and nutrients towards roots. Tracheids are dead tubular cells with tapering ends, vessels with thin elongated structures that have a tubular appearance, and no cytoplasm.

There is 1 question to complete.