Topic 7- Animal Coordination, Control and Homeostasis Flashcards Preview

GCSE Biology - Edexcel > Topic 7- Animal Coordination, Control and Homeostasis > Flashcards

Flashcards in Topic 7- Animal Coordination, Control and Homeostasis Deck (85)
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1

Which cells in the nervous system detect changes?

receptor cells

2

Sense organs contain receptors cells. Give one example of a sense organ.

e.g. eye, ear, nose, tongue, skin

3

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

effectors

4

Give an example of an effector.

one of: muscle, gland

5

In what form is information transmitted in the nervous system?

(electrical) impulses

6

How are soluble chemical substances (e.g. digested food molecules) carried around the body?

in the blood/plasma

7

Name one hormone produced in the male reproductive system.

testosterone

8

Name one hormone produced by ovaries.

one of: oestrogen, progesterone

9

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

target organ

10

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

change how the organ is working

11

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

endocrine gland

12

Name the organ that produces oestrogen.

ovary

13

Name the organ at the base of the brain that produces many hormones.

pituitary gland

14

What is the name for an organ that is affected by a hormone?

target organ

15

Name an organ that is affected by growth hormone.

bones/muscles

16

How do hormones travel around the body?

in the blood

17

Which hormone brings about changes in a boy’s body during puberty?

testosterone

18

Higher and Triple only- Where is adrenalin made?

adrenal glands

19

Higher and Triple only- Describe one effect of adrenalin on the body.

any suitable effect, such as: increases heart rate, increases breathing rate, increases blood pressure, increases blood sugar concentration, dilates pupils

20

Higher and Triple only- What is the role of thyroxine in the body?

to control metabolic rate

21

What name is given to a substance produced in the body that changes how its target organs work?

hormone

22

Name the endocrine gland that produces testosterone.

testis/testes

23

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

in blood

24

Name the hormone that produces changes in girls as they become women.

oestrogen

25

Higher and Triple only- In which gland is thyroxine produced?

thyroid gland

26

Higher and Triple only- What is the function of thyroxine in the body?

controls metabolic rate

27

Higher and Triple only-Which hormone controls the fight or flight response?

adrenalin

28

Higher and Triple only- Which term describes when a change in a system causes the opposite change, returning the system to a normal level?

negative feedback

29

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

menstrual cycle

30

What name is given to methods that prevent fertilisation?

contraception