where do plants get each of the raw materials required for photosynthesis? tell me in brief by point wise
The Correct Answer and Explanation is:
Correct Answer (Point-wise Brief):
Plants obtain the raw materials for photosynthesis from the following sources:
- Carbon dioxide (CO₂):
Taken from the air through small openings in leaves called stomata. - Water (H₂O):
Absorbed from the soil by roots and transported to leaves through xylem vessels. - Sunlight:
Captured from the sun by chlorophyll in the chloroplasts of leaf cells.
Detailed 300-word Explanation (Without using the word “we”):
Photosynthesis is the process by which green plants manufacture their own food using sunlight, carbon dioxide, and water. To carry out this process effectively, plants require specific raw materials, each sourced from different parts of the environment.
Carbon dioxide is a gas present in the atmosphere. It enters the plant through microscopic pores located on the surface of leaves. These pores, known as stomata, open and close depending on environmental conditions, allowing the intake of carbon dioxide for photosynthesis and the release of oxygen as a by-product.
Water is another essential component. It is absorbed from the soil through the plant’s root system. Root hairs increase the surface area for absorption, drawing water up into the plant. This water travels through specialized tissues called xylem, which form a network of tubes that extend from the roots to all parts of the plant, especially the leaves.
Sunlight acts as the energy source that drives the chemical reactions in photosynthesis. The green pigment called chlorophyll, found inside chloroplasts in leaf cells, captures light energy. This energy is used to convert carbon dioxide and water into glucose (a form of sugar) and oxygen. The glucose serves as a source of energy and building material for the plant, while the oxygen is released into the atmosphere.
Thus, the three raw materials required for photosynthesis—carbon dioxide, water, and sunlight—are all obtained from the plant’s surroundings. Each plays a crucial role in sustaining the life processes of plants and, indirectly, all living organisms that depend on plants for food and oxygen.
