11.4 Sexual Reproduction

Which pair of statements best describes oogenesis and spermatogenesis

• A

• B

• C

• D

What is a difference between human sperm and human egg cells

• Sperm have more chromosomes

• Sperm have a larger surface area to volume ratio

• Eggs have an acrosome

• The division of the cytoplasm in sperm production is uneven

Tags

NGSS.HS-LS3-2

What is a difference between spermatogenesis and oogenesis

• A

• B

• C

• D

Tags

NGSS.HS-LS1-4

What is the correct order of events in fertilization

• fusion of gametes, acrosome reaction and then cortical reaction

• cortical reaction, fusion of gametes and then acrosome reaction

• acrosome reaction, fusion of gametes and then cortical reaction

• fusion of gametes, cortical reaction and then acrosome reaction

Which hormone is paired with one of its correct functions during pregnancy and birth?

• Estrogen - maintains the corpus luteum in the ovary

• HCG - initiates uterine contractions

• Oxytocin - promotes development of the placenta

• Progesterone - maintains the endometrium

From where is human chorionic gonadotrophin (HCG) secreted in early pregnancy

• Embryo

• Corpus Luteum

• Ovary

• Pituitary gland

What is the role of HCG in early pregnancy?

• HCG stimulates FSH secretions

• HCG stimulates the degeneration of the corpus luteum

• HCG stimulates ovarian estrogen and progesterone secretion

• HCG stimulates uterine contractions

What is a blastocyst?

• An unfertilised egg surrounded by follicle cells

• An unfertilised egg cell expelled by menstruation

• The follicle when it has swelled up with fluid

• The embryo when it has become a hollow ball of cells

Which interaction between hormones in the reproductive system of women

• Estrogen from the corpus luteum stimulates secretion of FSH.

• Estrogen from the follicle stimulates secretion of LH at midcycle.

• Progesterone stimulates secretion of LH after ovulation.

• During birth, progesterone stimulates secretion of oxytocin.

Tags

NGSS.HS-LS1-3

• A

• B

• C

• D