[Campbell Biology P.1075] Which of the following statements correctly describes the contribut... | Practice Question

Which of the following statements correctly describes the contributions of male accessory glands to semen?

  • A: The seminal vesicles secrete a fluid that is thin and milky, containing anticoagulant enzymes.
  • B: The prostate gland contributes about 60% of the volume of semen and contains fructose for sperm energy.
  • C: The bulbourethral glands secrete clear mucus before ejaculation, which neutralizes acidic urine remaining in the urethra.
  • D: Seminal vesicles produce a fluid that is thin, clear, and alkaline, assisting in sperm motility.

Explanation

The text states that 'The bulbourethral glands are a pair of small glands along the urethra below the prostate. Before ejaculation, they secrete clear mucus that neutralizes any acidic urine remaining in the urethra.' Option A incorrectly describes the seminal vesicles; it's the prostate gland that secretes thin and milky fluid with anticoagulant enzymes. Option B incorrectly attributes the 60% contribution and fructose to the prostate; these are characteristics of the seminal vesicles. Option D incorrectly describes the seminal vesicle fluid as thin and clear; it's thick, yellowish, and alkaline.