Which structure of the phloem creates a press | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The pressure gradient in the phloem is created by the loading of sucrose into the sieve tube elements. This process is facilitated by the companio

Vedclass · Accepted Answer

Companion cell

Vedclass · Answer

(A) The pressure gradient in the phloem is created by the loading of sucrose into the sieve tube elements. This process is facilitated by the companion cells,which actively transport sucrose into the sieve tubes. This creates a high osmotic pressure in the sieve tube,causing water to move from the xylem into the phloem,thereby generating a positive pressure gradient that drives the translocation of food.

Which structure of the phloem creates a pressure gradient in the sieve tube?

Similar Questions

Who supported the cytoplasmic flow hypothesis for translocation of food in plants?

$A$ : The translocation in phloem is bidirectional.
$R$ : The source and sink relationship is variable.

In which form is the food translocated from the endosperm to the plumule of a fatty seed like castor?

The function of companion cells is to .........

The translocation of organic solutes in sieve tubes occurs through which of the following mechanisms?

Vedclass Test Series

Exam Paper Generator

Online Exam Module