Question

Given below are two statements :
Statement I : Glycogen is similar to amylose in its structure.
Statement II : Glycogen is found in yeast and fungi also.
In the light of the above statements, choose the correct answer from the options given below :

• A. Statement I is true but Statement II is false.
• B. Statement I is false but Statement II is true.
• C. Both Statement I and Statement II are true.
• D. Both Statement I and Statement II are false

Answer 1

The Correct Option is B

To determine the correct answer, let's consider the two given statements individually.

1. Statement I: Glycogen is similar to amylose in its structure.
   - Glycogen and amylose are both polysaccharides, but they differ significantly in structure.
   - Amylose is a linear chain of glucose molecules linked by α-1,4-glycosidic bonds, forming a helical structure.
   - Glycogen, on the other hand, is a branched polymer of glucose. It consists of α-1,4-glycosidic bonds for the linear chains and α-1,6-glycosidic bonds at the branching points approximately every 8-12 glucose units.
   - Hence, glycogen is more comparable to amylopectin (another form of starch with a branched structure) than amylose.
   - Therefore, Statement I is false.
2. Statement II: Glycogen is found in yeast and fungi also.
   - Glycogen is indeed present in various organisms, including animals, bacteria, fungi, and yeasts, as a storage form of energy.
   - Fungi and yeast use glycogen as an energy reserve, which is similar to the role it plays in animal cells.
   - Therefore, Statement II is true.

Given these points, the answer is that Statement I is false but Statement II is true.