Question

In bacteria, synthesis of long chain polysaccharides, such as starch and glycogen, have glucose donated to the end of the growing chain by _____?

1) ADP-glucose
2) UTP-galactose
3) ATP-mannose
4) UDPG

Answer 1

ADP-glucose is the molecule that donates glucose to the growing chain of long chain polysaccharides such as starch and glycogen in bacteria.

Step-by-step explanation:

In bacteria, the synthesis of long chain polysaccharides such as starch and glycogen involves the donation of glucose to the growing chain by ADP-glucose. ADP-glucose is formed when glucose-1-phosphate is attached to ADP by the enzyme glucose-1-phosphate adenylyltransferase. The resulting ADP-glucose can then be used as a donor molecule to add glucose to the growing chain of polysaccharides.