Identify the sugar molecule present in seminal plasma.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Fructose
The seminal plasma is the fluid made by the male accessory glands: the seminal vesicles, the prostate and the bulbourethral glands. It is rich in fructose, calcium and certain enzymes. Fructose is the sugar that gives the sperms energy for their motility.
(1) Glucose — Incorrect. Glucose is the common blood sugar. It is not the sugar of the seminal plasma.
(2) Galactose — Incorrect. It is the sugar that combines with glucose to form lactose, the milk sugar.
(3) Fucose — Incorrect. It is a rare sugar and has no place in this answer.
(4) Fructose — Correct. This is the sugar named for the seminal plasma.
NCERT Extract:
The Male Reproductive System – …
