1. Diagram 5 shows a process that takes place in the human respiratory system.

(a) Name the process shown in Diagram 5.

……………………………………………………………………………………………………[1 mark]

(b) Describe the movement of the following parts during this process.

(i) Ribs: ………………………………………………………………………………………….

(ii) Diaphragm: ………………………………………………………………………………………….

[2 marks]

(c) Explain briefly how air is forced into the lungs.

………………………………………………………………………………………………………

………………………………………………………………………………………………………[2 marks]

(d) Complete the sequence to show the flow of air into the lungs during this process.

[2 marks]

Alveolus

BronchusNasal cavity

Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5Diagram 5

2. Diagram 1 shows two types of blood vessels, P and Q.

(a) Name blood vessels P and Q on Diagram 1. [2 marks]

(b) What is the function of P and Q?

(i) P:……………………………………………………………………………………….

(ii) Q:….……………………………………………………………………………………..[2 marks]

(c) Name the blood vessel that connects blood vessel P and Q?

……………………………………………………………………………………………………… [1 mark]

(d) Explain why there is a difference in the thickness of the wall in blood vessels P and Q.

………………………………………………………………………………………………………

……………………………………………………………………………………………………… [1 mark]

(e) What is the function of R?

……………………………………………………………………………………………………… [1 mark]

3. Diagram 2.1 shows the transverse section of the stem of a balsam plant.

P

Q

Diagram 2.1

R

Diagram 1

Q: ……………………….P: ……………………….

(a) Based on Diagram 2.1, label structure P and Q and state their functions.

Structure Name FunctionP

Q

[4 marks]4. Diagram 5 shows the human excretory system.

(a) On Diagram 5, label P, Q and R with the following words.

Lung Skin Kidney

[3 marks]

Diagram 5

R: ………………………..

Q: ……………………….

P: ……………………….

(b) Draw lines to show the correct match between the excretory organs and their excretory products. The answers can be used more than once.

Draw the lines as shown below.

Excretory organ Excretory products

[2 marks]5. Diagram 1 shows the parts of a flower.

(a) Label P, Q and R on Diagram 1 with the following words.

Ovary Stigma Petal

[3 marks]

Urea, water and mineral salts

Carbon dioxide and water

Urea and water

Urea, water, mineral salts and carbon dioxide

R

Q

P

R: ……………………………

Q: ……………………………

P: ……………………………

Diagram 1

(b) What is the function of P?

………………………………………………………………………………………………………[1 mark]

(c) What happens to R after pollination and fertilisation?

………………………………………………………………………………………………………[1 mark]

(d) The male reproductive organ of the flower is known as the stamen. What is the stamen made up of?

………………………………………………………………………………………………………[1 mark]

6. Diagram 2 shows the male reproductive system in humans.

(a) Label L, M and N on Diagram 2 with the following words.

Sperm duct Seminal vesicle Testis

[3 marks]

N: ……………………………

M: ……………………………

L: ……………………………

Diagram 2

(b) Match the part of the male reproductive system to its function. Draw lines to match.

[3 marks]

7. Diagram 3 shows the female reproductive system in humans.

(a) Using the following words, label P, Q and R on Diagram 3.

Ovary Fallopian tube Uterus

[3 marks]

Secrete a fluid that nourishes the sperms

Carry sperms form the testis to the urethra

Produces sperms

Channels sperms and urine out of the body

N

M

L

PART FUNCTION

R: ………………………………

Q: ………………………………

P: ………………………………

Diagram 3

(b) What is the function of Q?

………………………………………………………………………………………………………

[1 mark]

(c) (i) Name the process that takes place at P.

……………………………………………………………………………………………………

[1 mark]

(ii) Explain what happens during the process in (c) (i).

…………………………………………………………………………………………………

[1 mark]

(d) Label the cervix on Diagram 3 with the alphabet, S.

[1 mark]1. Diagram 3 shows the different stages in the growth of a human being.

(a) Name the stages of growth in Diagram 3.

[4 marks]

(b) Describe the growth rate at P.

…………………………………………………………………………………………………

[1 mark]

Diagram 3

S: …………………..R: …………………..Q:…………………..P: …………………..

(c) Children need nutritious food for healthy growth. Draw lines to match the classes of food to their importance in children’s growth.

[3 marks]3. Diagram 3 shows some limestone powder being heated in a boiling tube. Liquid W turns

cloudy after five minutes.

(a) (i) What is liquid W?………………………………………………………………………………………………….

(ii) Why does it turn cloudy?…………………………………………………………………………………………………..

[2 marks]

(b) Liquid W can be produced from limestone by the processes shown below.

Carbohydrates

To repair damaged tissues and promote growth Fibre

Helps to move a child’s bowels

Provides energy for children to carry out activities Proteins

ImportanceClass of food

Diagram 3

W

Limestone powder

dissolve in waterRPLiquid WSlaked limeQLimestone

Name

(i) process P : ……………………………………………………………………………………

(ii) substance Q : ……………………….………………………………………………………

(iii) process R : ………………………..…………………………………………………………

[3 marks]

(c) List two uses of slaked lime

(i) …………………………………………………………………………………………………..

(ii) …………………………………………………………………………………………………..

[2 marks]4. Diagram 4 shows an activity carried out to study the effect of heat on copper sulphide.

(a) What is solution M?

…………………………………………………………………………………………………

[1 mark]

(b)(i) What happen to solution M when the copper sulphide is heated strongly?

……………………………………………………………………………………………….

[1 mark]

(ii) Name the gas released that causes the change in solution M b (i).

Diagram 3

Solution M

Copper sulphide

……………………………………………………………………………………………….

[1 mark]

(c) Name the product left in the test tube after the copper sulphide was heated strongly.

………………………………………………………………………………………………….

[1 mark]

(d) Complete the word equation for the above reaction.

[2 marks]

HeatCopper sulphide +