Give a brief description of the process of synthesis of food in green plants.
Show with the help of a sketch that plants are the ultimate source of
Answers
Leaves are the food factories of plants. The synthesis of food in plants occurs in leaves.
Therefore, all the raw materials (Water, Carbon dioxide and sunlight) must reach there.
Water and minerals are transported to the leaves by the vessels which run like pipes throughout the root, the stem, the branches and the leaves.
The leaves have a green pigment called chlorophyll which helps leaves to capture the energy of the sunlight.
This energy is used to synthesise (prepare) food from carbon dioxide and water. This process is termed as ‘Photosynthesis’.
Answer:
The process of synthesis of food in green plants is called photosynthesis. This process takes place in the cells containing the green pigment chlorophyll. The raw materials for this process are water, carbon dioxide and sunlight. Water and minerals present in the soil are absorbed by the roots and transported to the leaves. Carbon dioxide from air is taken in through the stomata present on the leaf surface. During photosynthesis, chlorophyll containing cells of leaves, in the presence of sunlight, use carbon dioxide and water to synthesise carbohydrates.
Sketch: Attached
