Question

Seminal plasma in human males is rich in

• A. fructose and calcium
• B. glucose and calcium
• C. DNA and testosterone
• D. ribose and potassium.

Answer 1

The Correct Option is A

The question asks about the components that are rich in seminal plasma in human males. Let's break down the options and identify the correct answer.

1. Understanding Seminal Plasma: Seminal plasma is the fluid part of semen, which plays a crucial role in nourishing and protecting sperm cells. It is produced by the male reproductive organs, primarily the seminal vesicles, prostate gland, and bulbourethral glands.
2. Components of Seminal Plasma:
   • Fructose: Seminal plasma is rich in fructose, which serves as a primary energy source for sperm motility. Fructose is secreted by the seminal vesicles.
   • Calcium: Calcium ions in seminal plasma are important for the physiological functioning of sperm, including motility and capacitation. Calcium supports various metabolic processes within sperm cells.
3. Analyzing the Options:
   • fructose and calcium
     - This option accurately includes the key components found abundantly in seminal plasma.
   • glucose and calcium
     - While calcium is correct, glucose is not a significant component of seminal plasma compared to fructose.
   • DNA and testosterone
     - Though sperm cells contain DNA and testosterone is a male hormone, they are not primary components of the fluid part of semen (seminal plasma).
   • ribose and potassium
     - These are not principal components of seminal plasma in human males.
4. Conclusion: Based on the above analysis, the correct answer is
   fructose and calcium
   as these substances are present in significant concentrations in seminal plasma to support sperm cells.