Consider the following statements   1. Xylem vessels are semi-permeable   2. Sieve tu
Channel: Doubtnut
Date: 2020-05-03

Consider the following statements   1. Xylem vessels are semi-permeable   2. Sieve tubes translocate only solutes   3. Xylem vessels do not have a turgor pressure   4. Companion cells help in maintaining pressure gradient in the sieve tubes .   Which of the statements given above are correct ?