Question

Which of the following statements about flowers are true?

(i) Flowers are always bisexual.

(ii) They are the sexual reproductive organs.

(iii) They are present in all groups of plants.

(iv) After fertilization, they give rise to fruits.

• A. (i) only
• B. (iii) only
• C. (i) and (iii)
• D. (ii) and (iv)

Answer 1

The correct option is D

(ii) and (iv)

The correct option is D (ii) and (iv).

The explanation of the correct option:

1. Flowers are a characteristic of angiosperm plants.
2. The reproductive part of a plant is the flowers.
3. Flowers have male and female gametes producing anthers and ovary.
4. Pollination transfers the pollen from the anthers to the stigma.
5. After fertilization, the ovary develops into a fruit and ovules into seeds.

The explanation of the incorrect options:

Option A:

1. A flower can be unisexual or bisexual.
2. Unisexual flowers do not have both stamen and carpels. Examples-papaya and watermelon.
3. Bisexual flowers contain both male and female reproductive parts like tomato and sweet pea.

Option B:

1. Flowers are a characteristic of flowering plants.
2. Bryophytes, Pteridophytes, and Gymnosperms are plants that do not bear flowers.

Option C:

1. Many flowers are unisexual, like cucumber and maize.
2. Flowers are absent in non-flowering plants like ferns, liverworts, mosses, hornworts, etc.

Final Answer: The true statements about flowers are that ‘they are the sexual reproductive organs and after fertilization’ and ‘they give rise to fruits’.