Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Sexual Reproduction in Flowering Plants

Question:

Read the passage and answer the following questions .

In the process of sexual reproduction in angiosperms, the seed serves as the final product. It is formed from a fertilized ovule and is typically enclosed within a fruit. A seed is composed of several parts, including seed coats, cotyledons, and an embryo axis. The cotyledons of the embryo are simple structures that are often thick and swollen, storing food reserves, particularly in legumes. Mature seeds can be classified as albuminous (with endosperm) or ex-albuminous (with reduced endosperm). The integuments of the ovules harden to become protective seed coats, and a small pore called the micropyle remains, enabling the entry of oxygen and water during seed germination. As the ovules develop into seeds, the ovary undergoes transformation into a fruit. This simultaneous process involves the ovules turning into seeds, and the ovary walls developing into the fruit's pericarp. Fruits come in different types, including fleshy fruits like guava, orange, and mango, as well as dry fruits such as groundnut and mustard. Many fruits have evolved mechanisms for the dispersal of seeds.

True fruits are derived from :

Options:

The ovary and thalamus .

The ovary alone.

Accessary floral parts only .

Ovules without fertilization .

Correct Answer:

The ovary alone.

Explanation:

The correct answer is Option (2) The ovary alone.

True fruit are derived from the ripened ovary alone. In the process of fruit formation, the ovary of the flower undergoes development and transforms into a fruit. The ovary contains one or more ovules, which are potential seeds. After pollination and fertilization, the ovules within the ovary develop into seeds. The ovary wall, also known as the pericarp, undergoes changes and forms the wall of the fruit.

Therefore, true fruits are derived from the ovary alone.