Question

Sertoli cells provide nutrition to sperm mainly in form of
a) Glucose
b) Fat
c) Glycogen
d) Protein

Answer 1

Sertoli cells are found in the seminiferous tubule of testicles which is the male reproductive part. They play a major role in spermatogenesis (process of formation of sperms), therefore are also called mother cells of testicles. They are activated by FSH (Follicle Stimulating Hormone).

Complete answer:
Sperm cells are found to have a negative relation with Glucose. Their mobility reduces in the presence of glucose. Sperms being the reproductive cells need to be highly energised and mobile which is possible with faster energy breakdown only. As glucose is a complex energy source so it takes longer to break and release energy. Therefore, Glucose is a wrong option.
Fats are known as a concentrated source of energy as they break down too slowly to release energy. Due to the slow speed of breakdown, they get stored in the body instead of breaking down and are therefore too complex to be stored as an energy source for Sertoli cells. This implies that B is a wrong option.
Glycogen is a stored form of glucose. Sertoli cells are concerned with nutritional requirements of the sperm cells, so they store glucose in the form of glycogen to nutrify the sperm cells. Therefore, C is the correct answer.
Proteins on the other hand are concerned with repairing and maintaining the tissues and are not energy sources. Therefore, clearly, they cannot be used as an energy source by Sertoli cells as well. Therefore, D is a wrong option.

Note:
Glycogen is also a complex form of carbohydrates. When glucose is present in the body in abundance then it gets converted into Glycogen. Thus, glycogen later serves as an energy source in case of energy crisis.