Chapter 13 test

The photographs show four plant structures.

Which structure(s) is/are formed from sexual reproduction?

• W only

• X and Y only

• W and Z only

• W, Y and Z only

The diagram shows the structures of a flower.

Meiosis occurs in

• structures 2 and 10.

• structures 2 and 3.

• structures 2 and 7.

• structures 3 and 7.

The diagram shows the structures of a flower.

Which of the following combinations about the pollination of this flower is correct?

• A

• B

• C

• D

The diagram shows the structures of a flower.

The zygote is formed in

• structure 2.

• structure 3.

• structure 7.

• structure 10.

Which of the following structures in plants are involved in seed formation?

(1) sepals

(2) petals

(3) stamens

(4) carpels

• (1) and (2)

• (2) and (3)

• (2) and (4)

• (3) and (4)

Which of the following combinations is incorrect?

• A

• B

• C

• D

Which of the following plant parts are genetically identical?

• peas in the same pea pod

• flesh and the seed coat of the same fruit

• seed and the seed coat enclosing it

• pollen grains produced by a flower

The diagrams show the positions of plants P, Q, R and S, and the distribution of their offspring respectively.

Which plant disperses its seeds by wind?

• plant P

• plant Q

• plant R

• plant S

A new island was formed due to a volcanic activity. No species existed on the island. A seed was carried to the island by water currents. The seed grew and reproduced asexually. What are the advantages of carrying out asexual reproduction in this condition?

(1) The offspring can be produced quickly.

(2) The offspring are more able to adapt to environmental changes.

(3) Food reserves are available for the growth of the offspring.

• (1) and (2) only

• (1) and (3) only

• (2) and (3) only

• (1), (2) and (3)

Potato plants can reproduce both sexually and asexually. Which of the following correctly compares the difference between these two types of reproduction?

• A

• B

• C

• D