Topic 7 - Animal coordination, control & homeostasis

Question 1

Which cells in the nervous system detect changes?

Answer 1

Receptor cells

Question 2

Sense organs containing receptor cells:

Answer 2

Eyes 
Ears
Nose
Tongue
Skin

Question 3

Which parts of the body cause the response to a stimulus?

Answer 3

Effectors

Question 4

Examples of effectors:

Answer 4

Muscle, gland

Question 5

In what form is information transmitted in the nervous system?

Answer 5

Electrical impulses

Question 6

How are soluble chemicals carried around the body?

Answer 6

In blood/plasma

Question 7

Name male hormone produced in the reproductive system

Answer 7

Testosterone

Question 8

Name a hormone produced by ovaries

Answer 8

Oestrogen

Question 9

Which general name is given to an organ that responds to a hormone?

Answer 9

Target organ

Question 10

What effect do hormones have on organs that respond to them?

Answer 10

Change how the organ is working

Question 11

What is the name for a gland that produces a hormone?

Answer 11

Endocrine gland

Question 12

Organ that produces oestrogen

Answer 12

Ovary

Question 13

Organ at the base of the brain that produces many hormones:

Answer 13

Pituitary gland

Question 14

Name an organ that is affected by growth hormone

Answer 14

Bones/muscles

Question 15

How are hormones carried around the body?

Answer 15

In the blood

Question 16

Which hormone brings about changes in a boys body during puberty?

Answer 16

Testosterone

Question 17

Where is adrenaline made?

Answer 17

Adrenal glands

Question 18

Describe one effect of adrenaline on the body

Answer 18

Increases heart rate
Increases breathing rate
Increases blood pressure

Question 19

What is the role of thyroxine in the body?

Answer 19

To control the metabolic rate

Question 20

What’s a hormone?

Answer 20

A substance that is produced in the body that changes how it’s target organs work

Question 21

What glad produces testosterone?

Answer 21

Testes

Question 22

How does testosterone get from where it is made to its target organs?

Answer 22

In blood

Question 23

What hormone is produced when girls become woman

Answer 23

Oestrogen

Question 24

Which gland is thyroxine produced

Answer 24

Thyroid gland

Question 25

Which hormone controls the fight or flight response?

Answer 25

Adrenaline

Question 26

What’s the cycle of changes in a woman’s reproductive system that happens every month?

Answer 26

Menstrual cycle

Question 27

What physical barrier prevents fertilisation?

Answer 27

Contraception

Question 28

What day of the menstrual cycle is an egg released from an ovary?

Answer 28

Day 14

Question 29

What two hormones help control the menstrual cycle?

Answer 29

Oestrogen and progesterone

Question 30

Where is oestrogen produced

Answer 30

Ovaries

Question 31

Which endocrine organ produces the hormones FSH and LH?

Answer 31

Pituitary glad

Question 32

How does use of a condom during sexual activity help to reduce risk of pregnancy?

Answer 32

Prevents sperm reaching thr egg

Question 33

A surge in concentration of which hormone triggers ovulation?

Answer 33

LH

Question 34

Which hormone stimulates the growth and maturation of an egg follicle

Answer 34

FSH

Question 35

Which hormone treatment can be given to woman who rarely ovulate, to increase their chances of ovulation

Answer 35

Clomifene therapy

Question 36

Which term means maintaining a constant internal environment?

Answer 36

Homeostasis

Question 37

What effect does eating food have on blood glucose concentration?

Answer 37

Increases

Question 38

What effect does exercise have on blood glucose concentration

Answer 38

Decreases

Question 39

Which hormones control blood glucose concentration

Answer 39

Insulin

Question 40

Which endocrine gland produces insulin

Answer 40

Pancreas

Question 41

What causes type 1 diabetes?

Answer 41

No insulin produced

Question 42

What type of treatment must someone with type 1 diabetes have to have for the rest of their lives?

Answer 42

Injections of insulin

Question 43

What causes type 2 diabetes?

Answer 43

Not enough insulin produced/insulin target cells don’t work properly

Question 44

What are the target cells for insulin?

Answer 44

Liver & muscle cells

Question 45

What might a doctor suggest diabetics to reduce in their diet?

Answer 45

Sugar/glucose

Question 46

How is body mass correlated with the risk of developing type 2 diabetes?

Answer 46

Risk increases as mass increases

Question 47

How does the body respond to being cold?

Answer 47

Shivering/goosebumps/reduction of blood flow near the skin

Question 48

How does the body respond to being too hot?

Answer 48

Sweating/increases blood flow near skin

Question 49

What happens if blood glucose gets too low?

Answer 49

It is picked up by thr pancreas, and it starts to produce glucagon.

Question 50

How does glycogen convert back to glucose

Answer 50

Glucose stored in the muscle and liver cells start to return back to the blood stream.

Question 51

Equation for glycogen going to glucose

Answer 51

Glycogen ————> glucose | glucagon

Question 52

What causes blood glucose levels to rise?

Answer 52

your pancreas releases a hormone called insulin, which prompts your cells to absorb sugar from the blood.