Hormonal Coordination

Question 1

Maintaining stable internal conditions is called?

Answer 1

Homeostasis

Question 2

Give three internal conditions controlled in Homeostasis

Answer 2

Body temperature, blood glucose concentration, water levels

Question 3

What is a hormone?

Answer 3

A chemical signal

Question 4

Where are hormones produced?

Answer 4

Glands

Question 5

Which gland is known as the ‘master gland’?

Answer 5

Pituitary gland

Question 6

What is negative feedback?

Answer 6

When a change in the body is counter acted to restore normal levels

Question 7

Name the hormone that controls blood sugar

Answer 7

Insulin

Question 8

What is the condition where someone cannot control their blood sugar?

Answer 8

Diabetes

Question 9

How do you treat type 1 diabetes?

Answer 9

Insulin injections

Question 10

How do you treat type 2 diabetes?

Answer 10

Diet, exercise and liferstyle

Question 11

Which type of diabetes is caused by not being able to produce insulin?

Answer 11

Type 1

Question 12

Obesity is a risk factor in developing which type of diabetes?

Answer 12

Type 2

Question 13

What is glucose stored as?

Answer 13

Glycogen

Question 14

Where is glycogen stored?

Answer 14

Liver and muscles

Question 15

Name the hormone that releases glucose from glycogen

Answer 15

Glucagon

Question 16

What is the female reproductive hormone?

Answer 16

Oestrogen

Question 17

What is the release of an egg called?

Answer 17

Ovulation

Question 18

What is the main male reproductive hormone?

Answer 18

Testosterone

Question 19

Which hormone matures the egg in the ovary?

Answer 19

FSH (Follicle stimulating hormone)

Question 20

Which hormone releases the egg?

Answer 20

LH (luteinising hormone)

Question 21

Which hormones thicken the lining of the uterus?

Answer 21

Oestrogen and progesterone

Question 22

Name one method of hormonal conception

Answer 22

Oral contraceptives, injection, implant or skin patches, coil

Question 23

Name one method of non-hormonal contraception

Answer 23

Condoms, diaphragm, abstaining, sterilisation, spermicide

Question 24

State a disadvantage of IVF treatment

Answer 24

Emotionally and physically stressful, low success rate, can lead to multiply births

Question 25

Which hormones are used in fertility treatments?

Answer 25

FSH and LH

Question 26

What is the function of adrenaline?

Answer 26

Increase heart or breathing rate, fight or flight

Question 27

What is the function of thyroxine?

Answer 27

Stimulates metabolic rate

Question 28

Where are excess amino acids broken down?

Answer 28

In the liver

Question 29

What is the breakdown of excess amino acids called?

Answer 29

Deamination

Question 30

State two processes used in the production of urine

Answer 30

Ultrafiltration and selective reabsorption

Question 31

Why is ammonia converted to urea?

Answer 31

To make it less toxic

Question 32

What hormone controls the water levels in the body?

Answer 32

ADH (anti-diuretic hormone)

Question 33

How would your body respond to low water levels?

Answer 33

Release more ADH to reabsorb more water in the kidney tubules producing less urine

Question 34

How would your body respond to high water levels?

Answer 34

Release less ADH so more water is lost in urine

Question 35

Which gland produces ADH?

Answer 35

Pituitary gland

Question 36

Name one substance that is reabsorbed by the body

Answer 36

All glucose, some water, some minerals

Question 37

How is kidney failure treated?

Answer 37

Kidney dialysis or kidney transplant

Question 38

What are plant responses called?

Answer 38

Tropisms

Question 39

Name the main type of plant hormones

Answer 39

Auxins

Question 40

What is a plant response to light called?

Answer 40

Phototropism

Question 41

What is a plant response to gravity called?

Answer 41

Geotropism

Question 42

What are gibberellins used for in agriculture?

Answer 42

Starting germination, promoting flowering, ending seed dormancy

Question 43

What is ethane used for in agriculture?

Answer 43

Controlling fruit ripening

Question 44

How are auxins used in agriculture?

Answer 44

Weed killers, rooting powders, promoting growth in tissue culture

Question 45

What effect does auxin have on plant shoot cells?

Answer 45

Causes cell elongation

Question 46

What effect does auxin have on plant root cells?

Answer 46

Inhibits cell elongation