Bio - 16.5

Question 1

hormone in men

Answer 1

• testosterone
• secreted by testes
• can cause secondary sexual characteristics (eg. facial hair, pubic hair, deeper voice)

Question 2

hormone in women

Answer 2

• FSH
• oestrogen
• LH
• progesterone

Question 3

puberty - definition

Answer 3

time at which sexual maturity is reached

Question 4

FSH

Answer 4

• follicle stimulating hormone (to mature)
• secreted by pituitary gland
• helps follicle develop into an ovary

Question 5

oestrogen

Answer 5

• secreted by ovaries
• builds up uterus lining
• develops secondary sexual characteristics of a female (eg. breasts grow larger, pubic hair, wider hips)
• levels fall when ovulation takes place
• developing follicle secretes oestrogen in increasing amounts
• stimulates LH for release of ovulation

Question 6

LH

Answer 6

• secreted by pituitary gland
• causes ovulation to happen (release of the egg)
• causes the empty follicle to form a corpus luteum

Question 7

progesterone

Answer 7

• secreted by corpus luteum, and taken over after implantation
• keeps lining of uterus thick and spongy
• increase in progesterone => inhibits the pituitary gland (FSH & LH decreases)
• no implantation = no corpus luteum = no progesterone
• no more follicles develop during pregnancy

Question 8

memory help !!!

Answer 8

F - FSH: finds and matures the egg
O - Oestrogen: oversees rebuilding of the uterus lining
L - LH: lets the egg go
P - Progesterone: protects and maintain the uterus lining

Question 9

process of hormones

Answer 9

pituitary gland releases FSH & LH => FSH stimulates follicle => egg cell inside follicle matures => mature follicle releases oestrogen => oestrogen peaks => FSH inhibits & LH peaks => LH breaks the follicle => egg is released => egg cell travels into oviduct => OVULATION => follicle degenerates => becomes corpus luteum => produces progesterone