Biol 224 exam 4 UNR
Prostaglandins produced and the endometrium - Answer-Stimulate smooth muscle contractions
When the blastocyst burrows in the endometrium it is called - Answer-Implantation
If fertilization occurs the _____ is maintained because the embryo secretes _____ - Answer-Corpus
luteum, HCG
Which of the following is true
A oocytes and spermatocytes are the only types of human cells with flagella
B at the time of puberty the number of primordial follicles in female ovaries is greater than the number
at the time of birth
C at the time of puberty increasing levels of FSH cause spermatogenesis to begin dividing rapidly in
males and begin more rapidly in females
D spermatocytes are stem cells that divide by mitosis to produce sperm - Answer-B
Menstruation results from - Answer-Decrease in blood levels progesterone and estrogen
In response to excess water in blood - Answer-The permeability of the distal convoluted tubule's and
collecting ducts to water is decreased
In response to increased levels of aldosterone the kidneys produce - Answer-urine with a lower
concentration of sodium ions
, Which of the following is not a characteristic of carrier mediated transport - Answer-That a given carrier
protein normally works equally well transporting in both directions
Testosterone is secreted by - Answer-interstitial (leydig) cells of testes
The hormone that increases the flexibility of the pubic symphysis during pregnancy is - Answer-relaxin
Which of the following is false
A large proteins are not a normal component of filtrate and urine
B normal urine has an acidic pH and a specific gravity greater than one
C hypo secretion of ADH results in small volume of concentrated urine
D sympathetic stimulation in the kidney will decrease urine output - Answer-B
Erection of the penis occurs when - Answer-Nitric oxide causes dilation of arterioles in the penis
In a normal kidney which of the following conditions would increase the glomerular filtration rate -
Answer-An increase in the capsular hydrostatic pressure
In males, The primary target of the follicle stimulating hormone is the - Answer-Sustentacular cells of the
testes
Which of the following summarizes the role of luteinizing hormone in the reproductive system - Answer-
Triggering ovulation in females and triggering the release of testosterone in males
A boy has a genetic mutation that FSH is not produced but LH is normal. After the boy grows to maturity
it is likely he will - Answer-Be sterile
Prostaglandins produced and the endometrium - Answer-Stimulate smooth muscle contractions
When the blastocyst burrows in the endometrium it is called - Answer-Implantation
If fertilization occurs the _____ is maintained because the embryo secretes _____ - Answer-Corpus
luteum, HCG
Which of the following is true
A oocytes and spermatocytes are the only types of human cells with flagella
B at the time of puberty the number of primordial follicles in female ovaries is greater than the number
at the time of birth
C at the time of puberty increasing levels of FSH cause spermatogenesis to begin dividing rapidly in
males and begin more rapidly in females
D spermatocytes are stem cells that divide by mitosis to produce sperm - Answer-B
Menstruation results from - Answer-Decrease in blood levels progesterone and estrogen
In response to excess water in blood - Answer-The permeability of the distal convoluted tubule's and
collecting ducts to water is decreased
In response to increased levels of aldosterone the kidneys produce - Answer-urine with a lower
concentration of sodium ions
, Which of the following is not a characteristic of carrier mediated transport - Answer-That a given carrier
protein normally works equally well transporting in both directions
Testosterone is secreted by - Answer-interstitial (leydig) cells of testes
The hormone that increases the flexibility of the pubic symphysis during pregnancy is - Answer-relaxin
Which of the following is false
A large proteins are not a normal component of filtrate and urine
B normal urine has an acidic pH and a specific gravity greater than one
C hypo secretion of ADH results in small volume of concentrated urine
D sympathetic stimulation in the kidney will decrease urine output - Answer-B
Erection of the penis occurs when - Answer-Nitric oxide causes dilation of arterioles in the penis
In a normal kidney which of the following conditions would increase the glomerular filtration rate -
Answer-An increase in the capsular hydrostatic pressure
In males, The primary target of the follicle stimulating hormone is the - Answer-Sustentacular cells of the
testes
Which of the following summarizes the role of luteinizing hormone in the reproductive system - Answer-
Triggering ovulation in females and triggering the release of testosterone in males
A boy has a genetic mutation that FSH is not produced but LH is normal. After the boy grows to maturity
it is likely he will - Answer-Be sterile
