If the seminal vesicles in a human male are defective, the

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Quizplus · Accepted Answer

Seminal vesicles produce fructose, which provides energy to the sperm for swimming. If seminal vesicles are defective, sperm will lack fructose fuel and hence will not be able to swim efficiently. Therefore, option D is the correct answer. Option A is incorrect because the seminal vesicles are responsible for producing fluid that mixes with the sperm to form semen, which is ejaculated during sex, so if seminal vesicles are defective, ejaculation will be affected. Option B is incorrect because the flagella, which are needed for sperm swimming, are produced in the testes, not the seminal vesicles. Option C and E are incorrect because seminal vesicles do not secrete the fluid required to lubricate the urethra or produce testosterone; these functions are carried out by other glands in the male reproductive system.

If the Seminal Vesicles in a Human Male Are Defective