NEET BIOLOGY

PLANT PHYSIOLOGY

RESPIRATION IN PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What gas do producers need in order to perform photosynthesis?
A
oxygen
B
carbon dioxide
C
hydrogen
D
nitrogen
Explanation: 

Detailed explanation-1: -During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.

Detailed explanation-2: -To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight. for photosynthesis. Carbon dioxide enters through tiny holes in a plant’s leaves, flowers, branches, stems, and roots.

Detailed explanation-3: -Producers use carbon dioxide to make food in photosynthesis. Some of the carbon dioxide is returned to the atmosphere when this food is used for energy during cellular respiration. The rest is stored in the producer’s body as sugar.

Detailed explanation-4: -Answer and Explanation: Producers (including plants, some protists, and bacteria) synthesize food by converting carbon dioxide and water into sugars using energy from the sun or inorganic sources. During the process of photosynthesis, six carbon dioxide molecules are combined with six water molecules.

Detailed explanation-5: -6 molecules of carbon dioxide are required, one for each carbon atom in glucose. 6 molecules of oxygen are produced as a by product of water oxidation. Sunlight provides the free energy needed to make the endergonic pathway proceed.

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