Collin Spring Semester Mastering AP-Group 2: Section 28.2

blood-brain barrier

Seminiferous tubules and newly produced sperm are separated from the general circulation and the immune system by all of the following except

It is reduced by half.

What happens to the chromosome number as a result of meiosis?

Inhibin

What hormone produced by the nurse cells depresses the formation of FSH and provides a negative feedback mechanism for the control of spermatogenesis?

Sperm

What is produced by spermiogenesis?

LH

What is the hormone that directly stimulates testosterone production?

capacitation

When sperm become motile and fully functional, they have undergone __________.

Spermatogonia

Which cells in the seminiferous tubules regularly undergo mitosis?

Interstitial cells

Which cells in the testes are responsible for producing testosterone and other androgens?

Mitosis creates genetically identical cells, whereas meiosis creates genetically unique cells.

Which correctly describes mitosis and meiosis?

Inhibin

Which hormone acts to reduce the rate at which the anterior pituitary produces FSH?

Endometrial glands

Which of the following do(es) NOT contribute to semen production?

The mitochondria and Golgi apparatus are packaged into the head of the sperm.

Which of the following does not occur during spermiogenesis?

Two haploid gametes combine to make the diploid zygote.

Which of the following is accurate regarding the events of fertilization?

Facilitates both spermatogenesis and spermiogenesis

Which of the following is not a peripheral effect of testosterone?

Testosterone is a protein.

Which of the following is not true of testosterone?

Homologous chromosomes separate during meiosis I, and sister chromatids separate during meiosis II.

Which of the following is true regarding meiosis?

Spermatogonium a primary spermatocyte a secondary spermatocyte a spermatid a sperm

Which of the following states the correct order in which are cells produced in spermatogenesis?

Meiosis in oogenesis reduces the chromosome number by half.

Which statement about oogenesis mentions the one characteristic that is the same in spermatogenesis and oogenesis?

acrosome

Enzymes that help the sperm penetrate the ovum, or egg, are in the ________ of the sperm cell.

Sperm mixing with secretions from the bulbourethral gland

For a sperm to be able to fertilize an egg, it must undergo capacitation, which does not involve what process?

prostate specific antigen (PSA)

Men over the age of 50 are periodically screened for prostate cancer by measuring the blood for elevated levels of ______________.

Acrosomal cap

The enzymes needed to bore into the corona radiata reside in which portion of the sperm?

Secretion of testosterone

The functions of the sustentacular cells (nurse cells) in the male include all of the following except?

follicle-stimulating hormone (FSH)

The hormone that promotes spermatogenesis along the seminiferous tubules is __________.