Question

For the purpose of respiration in plants………….is necessary.
(a) Light
(b)${ C O }_{ 2 }$
(c)${ O }_{ 2 }$
(d) Chlorophyll

Answer 1

Hint: In the universe after helium and hydrogen gas, this gas is found in abundance.without this gas life is impossible on Earth. This gas is released by the green plants after the process of photosynthesis.

Complete answer:
For the purpose of respiration in plants oxygen ${ O }_{ 2 }$ is necessary. Like any other plant, the process of respiration is carried out in mitochondria. During the process of cellular respiration, carbon dioxide is released as a waste product and oxygen gas is required to serve as an acceptor of electrons.

Additional Information: -Cellular respiration is the process by which the energy available in carbohydrates is obtained.
-The carbohydrates are taken into the cytoplasm, and through a complex series of metabolic processes, the carbohydrates are broken down and energy is released.
-The energy released is used to combine ADP with phosphate ions to form ATP molecules.
- During the process of cellular respiration, carbon dioxide is released as a waste product.
-This carbon dioxide can be used during the process of photosynthesis to form new carbohydrates. -During the process of cellular respiration, oxygen gas is required to serve as an acceptor of electrons.
-This oxygen gas is the same as the oxygen gas released in photosynthesis.
-Chlorophyll is the green pigment present in the leaves of green plants and is involved in the process of photosynthesis.
-These are used as medicine include alfalfa, algae, and silkworm droppings. The chlorophyll is also used for bad breath and reducing colostomy odor.
So, the correct answer is,’${ O }_{ 2 }$’.

Note: - During the process of cellular respiration ${ C }{ O }_{ 2 }$ is released and ${ O }_{ 2 }$ is utilized.
-The energy released is used to combine ADP with phosphate ions to form ATP molecules.
-The oxygen gas is required to serve as an acceptor of electrons during respiration.