The middle piece of the sperm contains:
Correct answer: B. Mitochondria
- A. Proteins
- B. Mitochondria
- C. Centriole
- D. Nucleus
Explanation
The middle piece of a sperm cell contains mitochondria, which are the energy-producing organelles of the cell. Mitochondria provide the necessary energy for the sperm's motility (movement) by producing adenosine triphosphate (ATP) through cellular respiration.
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Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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