B5 Revision Questions For Chapter

Question 1

Name three substances that humans have to exchange with their environment

Answer 1

Answer p67/8

Question 2

How does having a large surface area to volume ratio help organisms exchange materials?

Answer 2

P 67/8

Question 3

Give an example of a specialised exchange surface found in a human and explain how it is adapted to maximise the exchange substances.

Answer 3

P67/8

Question 4

Name the blood vessel that transports blood from the heart to the rest of the body.

Answer 4

P69-71

Question 5

Describe the role of capillaries

Answer 5

P69-71

Question 6

Which type of blood vessel carries blood at high pressure?

Answer 6

P 69-71

Question 7

Name ten substances that are found in blood plasma.

Answer 7

Pg 69-71

Question 8

Draw a diagram of a typical neurone and label all the parts.

Answer 8

P 72-73

Question 9

What is the purpose of a reflex action?

Answer 9

P72-73

Question 10

Produce a sketch of the brain and label the cerebrum, cerebellum and brain stem.

Answer 10

Hp72-73

Question 11

Give three reasons why it may be tricky to treat problems in the brain and other parts of the nervous system.

Answer 11

P72-73

Question 12

What is a hormone?

Answer 12

P74-77

Question 13

Describe how a negative feedback system works in the body

Answer 13

P74-77

Question 14

Draw a timeline of the 28 day menstrual cycle. Label the four stages of the cycle and label when the egg is released.

Answer 14

P74-77

Question 15

Describe how one non-hormonal method of contraception works and list its pros and cons.

Answer 15

P74-77

Question 16

Briefly describe how IVF is carried out

Answer 16

P74-77

Question 17

What is homeostasis? Why is it important?

Answer 17

P78-82

Question 18

What’s an antagonistic effector?

Answer 18

P78-82

Question 19

Explain how body temperature is reduced when you are too hot.

Answer 19

P78-82

Question 20

Describe an experiment you could do to model temperature control in the body.

Answer 20

P78-82

Question 21

Briefly describe how the kidneys produce urine?

Answer 21

P78-82

Question 22

Name the hormone that controls the concentration of urine.

Answer 22

P78-82

Question 23

What effect does the hormone glucagon have on blood glucagon have on blood glucose level?

Answer 23

P78-82

Question 24

Explain how type 1 type 2 diabetes can be treated

Answer 24

P78-82

Question 25

Explain the role of the following parts of the eye

A. Cornea

B.iris

C.lens

Answer 25

P83-84

Question 26

Describe the iris reflex. Why is this needed

Answer 26

P83-84

Question 27

How is a convex lens used to correct long-sightedness?

Answer 27

P83-84