Answer: Produce fructose-rich fluid that nourishes sperm and makes up about 60% of semen volume.
- A Store and temporarily mature sperm cells in a coiled duct before ejaculation takes place
- B Produce fructose-rich fluid that nourishes sperm and makes up about 60% of semen volume
- C Produce testosterone under direct stimulation from luteinizing hormone released by the pituitary
- D Filter out structurally abnormal or immotile sperm cells before they are ever released
Correct answer: B. Produce fructose-rich fluid that nourishes sperm and makes up about 60% of semen volume
Explanation: Seminal vesicles produce a fructose-rich alkaline fluid that nourishes sperm. This fluid makes up about 60% of semen volume. The fructose provides energy for sperm, and the alkaline nature neutralizes vaginal acidity.
The human male reproductive system: sperm formed in the testis mature in the epididymis and travel via the vas deferens, mixing with secretions of the seminal vesicle, prostate and bulbourethral glands. Image: Wumingbai, CC BY-SA 4.0, via Wikimedia Commons.
Concept context
Male and female reproductive systems, gametogenesis, fertilization, implantation, pregnancy, and reproductive health.