Science Form 3 Chapter 4

Pn Azreen/ Science Form 3/ Chapter 4 1

FORM 3 CHAPTER 4 REPRODUCTION

1. 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]

(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]

Diagram 1

P: ……………………………

Q: ……………………………

R: ……………………………

Science Form 3 Chapter 4

Pn Azreen/ Science Form 3/ Chapter 4 2

2. Diagram 4 shows the structure of flowers P, Q, R and S.

(a) Based on the observations in Diagram 4, state one characteristic of each flower.

P: ……………………………………………………………………………………………….. Q: ………………………………………………………………………………………………. R: ………………………………………………………………………………………………. T: ……………………………………………………………………………………………….

[4 marks]

P Q

R S

Diagram 4

Science Form 3 Chapter 4

Pn Azreen/ Science Form 3/ Chapter 4 3

(b) Classify P, Q, R and S into two groups based on common characteristics.

[4 marks]

(c) Based on the observations in Diagram 4, make an inference on how the flowers are pollinated.

R: ………………………………………………………………………………………………….. S: …………………………………………………………………………………………………..

[2 marks]

P, Q, R and S

Common characteristic

Alphabets representing the

flowers

Science Form 3 Chapter 4

Pn Azreen/ Science Form 3/ Chapter 4 4

Science Form 3 Chapter 4

Pn Azreen/ Science Form 3/ Chapter 4 5