D. Answer each in a few words only.
1. Name two types of plants other than herbs, shrubs, and trees.
2. Name the process by which plants make food.
3. Which substance is used to remove chlorophyll from a green leaf during a photosynthesis experiment?
4. Mention any one characteristic of a shrub.
5. Why do some plants have tendrils?
E. Give reasons.
1. Mint, tomato, and wheat are herbs.
2. Pumpkin is a creeper and grapevine is a climber.
3. Wheat and mango have different types of roots.
F. Answer each in 5-6 sentences.
1. What is the function of the stem in a plant?
2. What is a leaf?
3. What is a root? State the various functions of roots.
Answer (2)
The answer discusses various aspects of plant biology including types of plants, processes like photosynthesis, and the characteristics and functions of roots, stems, and leaves. Specific examples like mint, pumpkin, and mango illustrate the diverse forms and functions of plants. Each section addresses the questions posed in detail, providing a clear understanding of plant biology.
;
D. Answer each in a few words only.
Name two types of plants other than herbs, shrubs, and trees.
Creepers
Climbers
Name the process by which plants make food.
Photosynthesis
Which substance is used to remove chlorophyll from a green leaf during a photosynthesis experiment?
Alcohol
Mention any one characteristic of a shrub.
Woody stems
Why do some plants have tendrils?
For support
E. Give reasons.
Mint, tomato, and wheat are herbs.
Herbs are small plants with soft stems that are not woody. Mint, tomato, and wheat all have these characteristics, making them herbs.
Pumpkin is a creeper and grapevine is a climber.
Pumpkins grow along the ground, spreading their stems horizontally, which classifies them as creepers. Grapevines, on the other hand, use structures to climb upwards, which makes them climbers.
Wheat and mango have different types of roots.
Wheat has fibrous roots, which are a network of thin roots arising from the base of the stem, while mango has a taproot system, which has one main root going deeper into the soil.
F. Answer each in 5-6 sentences.
What is the function of the stem in a plant?
The stem of a plant has several important functions. It supports the plant and holds up leaves, flowers, and fruits, ensuring they are positioned well for sunlight. The stem also acts as a transportation system, carrying water and nutrients from the roots to various parts of the plant through the xylem and distributing food produced in the leaves to other parts of the plant through the phloem. Additionally, stems can store food and water, and some plants use stems to reproduce asexually through processes like tuber development or runners.
What is a leaf?
A leaf is an organ of a plant that is typically green and flat. It plays a crucial role in photosynthesis, the process by which plants make food using sunlight, carbon dioxide, and water. Leaves are adapted in various ways to maximize their exposure to sunlight and to regulate water loss through structures such as stomata. They also aid in transpiration, the process of water movement and evaporation from the plant, and can sometimes be involved in reproduction or protection.
What is a root? State the various functions of roots.
A root is the part of a plant that typically grows underground and anchors the plant in the soil. It absorbs water and nutrients essential for the plant's growth and development. Roots also store food and nutrients for the plant, helping it survive in adverse conditions. Some roots have specialized functions, like breathing in mangroves or storing water in arid environments. They may also be involved in vegetative reproduction through structures like tubers or root runners.
