Question

Name the raw materials needed for photosynthesis.

Answer 1

Hint: Photosynthesis is the process utilized by the plants through which conversion of light energy into chemical energy takes place. It is an endothermic reaction. The chemical energy generated in the reaction is utilized to meet the metabolic activities and cellular respiration of the plant. The photosynthesis process is primarily maintaining the oxygen level of earth’s atmosphere. Besides, it is responsible for supplying most energy, which is indispensable for life on the planet earth.

Complete answer
Raw materials for photosynthesis:
Carbon dioxide and water are the main raw materials for the process of photosynthesis. Besides, light energy and chlorophyll are also raw materials for photosynthesis. Sunlight is the energy source, which is essential for photosynthesis to take place. If any of the raw materials is missing, photosynthesis will not take place. The missing raw material will become a limiting factor.
Sources of raw materials for photosynthesis
Through stomata, plants absorb carbon dioxide from the atmosphere. The process for absorption is gaseous exchange. They get water from the soil through roots and transport it to leaves. Water is provided by rain or irrigation. Chlorophyll and other green parts in the plants trap the sunlight. Sun provides the light energy needed for the reaction.

Note:
The leaf is a solar collector, made up of photosynthetic cells. The raw materials enter the cells of leaves through plant cells known as xylem, photosynthesis takes place in the presence of sunlight and the end products, sugar and oxygen are produced. Oxygen is sent out into the atmosphere through the pores in the surface of leaves (stomata). The following equation denotes the photosynthetic process:
$6CO_2$ + 6H_2O + sunlight \to $C_6H_{12}O_6$ + 6$O_2$