Question

Which cells are responsible for the movement of photosynthates through a plant?

a) Parenchyma
b) Collenchyma
c) Sclerenchyma
d) Sieve tube elements

Answer 1

Sieve-tube elements and companion cells are responsible for the movement of photosynthates through a plant.

Step-by-step explanation:

The cells responsible for the movement of photosynthates through a plant are sieve-tube elements and companion cells.

Sieve-tube elements, also known as sieve-tube cells, are responsible for the transport of organic substances such as sugars and amino acids. They are arranged end to end to form sieve tubes, and the sugars flow from one sieve-tube element to the next through perforated sieve plates.

Companion cells are found alongside the sieve-tube elements and provide metabolic support. They contain more ribosomes and mitochondria than sieve-tube cells, assisting in the transport and distribution of photosynthates.