Question

Plants carry out photosynthesis only during the day and respiration only at night.
(a)True
(b)False

Answer 1

Hint: Plants are photosynthetic eukaryotic organisms which include all living things that are not animals and all algae and fungi that are treated as plants. They get energy from the sunlight by the process of photosynthesis and contain chlorophyll A and B that gives them their green color.

Complete answer:
Photosynthesis in plants occurs only during the day when there is the sunlight but plants respire throughout the day and night. To carry out the process of photosynthesis, sunlight is important for the plant. Therefore plants perform photosynthesis only during the day in the presence of sunlight and respiration all day long. During photosynthesis, plants use light energy to convert water and carbon dioxide into oxygen and energy-rich organic compounds. Respiration in plants involves the usage of sugars that are produced during the process of photosynthesis and produce energy for the growth of the plant. The chain of all chemical reactions that take place in living organisms to synthesize energy in respiration which is a biochemical process where the air moves in between the external environment and the tissues. plants need oxygen and in return gives out carbon dioxide.

Additional information:
The exchange of gases takes place separately in the leaves stems and roots of the plants. Leaves consist of stomata that are tiny pores that help in the gaseous exchanges and consume oxygen which is used by the cells in the leaves to disintegrate glucose into water and carbon dioxide. Roots absorb the air from spaces between the soil particles and are utilized to liberate the energy which is used to transport soils and minerals from the soil. During photosynthesis, the food is synthesized and energy is stored. It is an endothermic process that comprises products such as water, oxygen, and sugar. It occurs during the daytime which is in the presence of sunlight and converts the radiant energy into potential energy.

So, the correct answer is 'false'.

Note: There are more than 80000 species of edible plants in which 90% of the food is consumed by humans from just 30 species of plant. The first type of painkiller which is used for fever came from the bark of a willow tree which is a type of aspirin.