The seceration of the acessory glands are rich in

Options

A. magnesium
B. glusoce
C. potassium
D. fructose

Answer

### Step-by-Step Solution:

1. **Understanding Accessory Glands**: Accessory glands in the male reproductive system include the seminal vesicles, prostate gland, and bulbourethral glands. These glands secrete fluids that contribute to semen.

2. **Identifying the Components of Secretion**: The secretions from these accessory glands are known to contain various substances, but one of the primary components is fructose.

3. **Role of Fructose**: Fructose is a type of sugar that serves as an energy source. It is particularly important for sperm motility. The sperm cells utilize fructose to generate ATP (adenosine triphosphate), which is essential for their movement.

4. **Importance of Energy for Sperm**: The energy derived from fructose is crucial for the sperm to swim and reach the ovum for fertilization. Without adequate energy, the sperm would not be able to move effectively.

5. **Conclusion**: Therefore, the secretion of accessory glands is rich in fructose, which plays a vital role in providing energy for sperm motility and overall reproductive function.