The function of companion cells is:

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

Question

(D) Companion cells are specialized parenchyma cells associated with sieve tube elements in the phloem. They maintain a pressure gradient in the sieve

Vedclass · Accepted Answer

Loading of sucrose into sieve elements.

Vedclass · Answer

(D) Companion cells are specialized parenchyma cells associated with sieve tube elements in the phloem. They maintain a pressure gradient in the sieve tubes by actively loading sucrose into them. This process is known as phloem loading,which requires energy in the form of $ATP$ because it occurs against the concentration gradient (active transport). Therefore,the primary function is the active loading of sucrose into sieve elements.

Similar Questions

In which reaction is a racemic mixture not obtained?

Which plant-derived latex is used as an alternative to rubber?

If $\frac{ax + b}{(3x + 4)^2} = \frac{1}{3x + 4} - \frac{3}{(3x + 4)^2}$,then:

$A$ coordination complex contains $Co^{3+}$,$Cl^{-}$,and $NH_3$. When dissolved in water,one mole of this complex gives a total of $3$ moles of ions. The complex is

When $100\,V$ $DC$ is applied across a solenoid,a current of $1\,A$ flows in it. When $100\,V$ $AC$ is applied across the same coil,the current drops to $0.5\,A$. If the frequency of the $AC$ source is $50\,Hz$,the impedance and inductance of the solenoid are:

Vedclass Test Series

Exam Paper Generator

Online Exam Module