Question

The final product of photosynthesis is-
A. Carbohydrates.
B. Carbon dioxide.
C. Nitrogen.
D. Water.

Answer 1

Hint: For the process of photosynthesis, carbon dioxide and water are used as raw materials.
Oxygen gas is a by-product of the photosynthesis, which is used by other living organisms for the process of respiration.
The plants can produce their food in the form of glucose and store it in the form of starch.

Complete answer:
The green plants are autotrophic in nature. They can synthesize their own food by the process of photosynthesis.
The plant uses sunlight energy to prepare food from carbon dioxide and water in the presence of chlorophyll pigment. These are the green colour pigments found in the chloroplast of leaves.
The photosynthesis can be defined as “the process by which green plants synthesize their own food from inorganic material like carbon dioxide and water in the presence of sunlight and chlorophyll molecules.” Oxygen gas is also formed as a by-product.
The carbon dioxide air, which is required for the preparation of food, enters through stomata into the plant.
Water, which is the second raw material of photosynthesis, enters into plants by root hairs. The root hair absorbs water from the soil which is then transported through xylem to the rest of the parts like stem, leaves, flowers, etc.
The food which is prepared by the plants through photosynthesis is stored in the form of glucose. This glucose is prepared in green leaves, which is then transported to the rest of the parts like stem, roots, flowers, etc. through the phloem.
The extra glucose is then stored in the form of starch. Both starch and glucose are examples of carbohydrates.
The green plants convert light energy of sunlight into chemical energy. This energy is utilized by several organisms for growth and other metabolic activities.
The substrates for photosynthesis are carbon dioxide and water while products of photosynthesis are carbohydrate (glucose) and oxygen.

So, the correct answer is option A, carbohydrates.

Note:
The autotrophic are the organisms that synthesize their own food with the help of photosynthesis.
Stomata are the tiny pores that are present on the epidermis of leaves, helping in gaseous exchange and transpiration.