G10 Hormones and the Reproductive System(Hormones Controlling the Male Reproductive System)

Question 1

process of gametogenesis that occurs in males

Answer 1

Spermatogenesis

Question 2

involves the production and development of gametes or sex cells

Answer 2

Gametogenesis

Question 3

Gametogenesis involves the production and development of gametes or sex cells. Thus, gametogenesis in males involves the maturation of sperm cells from spermatogonia into adult sperm cells.

Question 4

Adult sperm cells are capable of _, and thus will be able to fertilize an egg cell.

Answer 4

motility

Question 5

The process of spermatogenesis is triggered when the Sertoli cells of the testes receive FSH released by the hypothalamus.

Question 6

Puberty in males is controlled by two hormones

Answer 6

follicle stimulating-hormone (FSH)
luteinizing hormone (LH)

Question 7

Puberty in males is controlled by two hormones: follicle stimulating-hormone (FSH) and luteinizing hormone (LH). These two hormones are released in response to another hormone, known as

Answer 7

gonadotropin-releasing hormone (GnRH).

Question 8

At the onset of puberty, the hypothalamus starts secreting high pulses of _. In response, the anterior pituitary gland secretes FSH and LH.

Answer 8

gonadotropin-releasing hormone (GnRH)

Question 9

goes into the testes and stimulates the Sertoli cells

Answer 9

Follicle Stimulating Hormone(FSH)

Question 10

cells around which spermatids develop in the tubules of the testes

Answer 10

Sertoli cells

Question 11

FSH goes into the testes and stimulates the Sertoli cells.
Sertoli cells are cells around which spermatids develop in the tubules of the testes.

Hence, FSH initiates sperm cell production or _.

Answer 11

spermatogenesis

Question 12

enters the testes and stimulates the interstitial/Leydig cells.

Answer 12

Luteinizing Hormone/LH

Question 13

produce and release testosterone into the testes and the blood

Answer 13

interstitial cells/Leydig cells

Question 14

the primary male sex hormone

Answer 14

Testosterone

Question 15

responsible for the secondary sex characteristics that develop in the male during adolescence.

Answer 15

Testosterone

Question 16

Testosterone is essential in

Answer 16

spermatogenesis

Question 17

Testosterone is produced in the

Answer 17

Leydig cells of the testes

Question 18

Testosterone is produced in the Leydig cells of the testes. This happens when the pituitary gland releases

Answer 18

Luteinizing Hormone/LH

Question 19

The processes are initiated when GnRH stimulates the production of FSH and LH to start the production of sperm cells.

=Recall that there are feedback mechanisms in place in the body to make sure that the proper signals are released in order to control certain processes.=

Question 20

occurs when a change sensed by the body occurs. What the body does in response is to produce a signal, usually in the form of hormones, in order to reverse this change

Answer 20

Negative feedback

Question 21

For example, the production of testosterone will have a negative feedback effect on the pituitary gland in order to inhibit the release of hormones like FSH, LH, and GnRH

Question 22

negative feedback mechanisms involved in males

Answer 22

testosterone levels increase beyond the normal range==feedback system occurs to inhibit the pituitary’s production of FSH, LH, and GnRH

Question 23

a hormone produced by Sertoli cells that is released into the blood when the sperm count is high

Answer 23

inhibin

Question 24

occurs when a stimulus causes a response, which leads to a cascade of repeating events until a change is achieved

Answer 24

Positive feedback

Question 25

The release of LH and FSH have positive feedback effects

Question 26

causes the Leydig cells of the testes to produce more testosterone

Answer 26

LH

Question 27

stimulates the Sertoli cells to stimulate spermatogenesis through the release of other male hormones

Answer 27

FSH

Question 28

Puberty in males is controlled by two hormones: follicle stimulating-hormone (FSH) and luteinizing hormone (LH).
Spermatogenesis is the process of gametogenesis that occurs in males. It is primarily controlled and initiated by testosterone.
Testosterone is the primary male sex hormone. It is responsible for the secondary sex characteristics that develop in the male during adolescence.
Negative feedback occurs when a change sensed by the body occurs. What the body does in response is to produce a signal, usually in the form of hormones, in order to reverse this change.
Positive feedback occurs when a stimulus causes a response, which leads to a cascade of repeating events until a change is achieved.