endocrine system

Question 1

what are hormones

Answer 1

chemical messengers that cause a specific response in target organs.

Question 2

what are target organs

Answer 2

the organ a hormone has an effect on

Question 3

what is homeostasis

Answer 3

homeostasis is keeping conditions in the body constant

Question 4

what do glands do

Answer 4

they secrete hormones

Question 5

what is the endocrine system

Answer 5

all the glands and hormones that are produced

Question 6

why is maintaining a constant internal environment important when faced with internal and external changes?

Question 7

describe the function of skin in the control of body temperature

Question 8

explain how insulin controls blood sugar levels in the body

Question 9

explain how glucagon interacts with insulin to control blood sugar levels in the body

Question 10

compare type 1 and 2 diabetes, including how they are treated.

Question 11

explain the effect on cells of osmotic changes in body fluids

Question 12

describe of the kidneys in maintaining the water balance of the body

Question 13

describe the overall structure of the kidneys

Answer 13

bowmans capsule, proximal convoluted tubule, loop of hence, collecting duct

Question 14

describe the effect of ADH on the permeability of the kidney tubules

Question 15

explain the response of the body to osmotic challenged

Question 16

describe the principles of hormonal coordination and control by the humans endocrine systems

Answer 16

hormones are chemical messengers that cause specific responses in target organs. they are released from a gland and travel to the target organs in blood. when they reach the target organ they bind onto specific receptors for that hormone.

Question 17

explain the roles of thyroxine in the body

Answer 17

thyroxine - produced from the thyroid gland which stimulates the metabolic rate which affects growth and development.
thyroxine levels are controlled by negative feedback so when the pituitary gland detects there’s too little thyroxine it stimulates the production on TSH

Question 18

describe the role of hormones produced in the ovaries in human reproduction including the control of the menstrual cycle

Answer 18

oestrogen is produced by the ovaries and makes the lining of the uterus repair itself and grow again after menstruation. first half of the menstrual cycle.
progesterone is produced by the empty follicle in the ovary after the effect has been released. it maintains the living of the uterus during the second half of the menstrual cycle.

Question 19

explain the interactions of FSH, LH, oestrogen and progesterone in the control of the menstrual cycle

Question 20

explain the use of hormones in contraception, evaluate hormonal vs non hormonal methods.

Question 21

explain the use of hormones in modern reproductive technologies to treat infertility

Question 22

explain how plant hormones are important in the control of plant growth and development.

Question 23

describe effects of plant hormones

Question 24

describe different ways people use plant hormones to control plant growth.

Question 25

explain the roles of adrenaline in the body

Question 26

describe the role of hormones produced in the pituitary gland in human reproduction including the control of the menstrual cycle