Photosynthesis in an aquatic plant was measured by counting the number of $O_{2}$ bubbles coming out ofthe cut end ofthe plant. What will happen to $O_{2}$ production if you use a pipe to blow air from your mouth into water in the beaker?

Air from mouth contains

O_{2}

which is being added to the plant. Hence increase in

O_{2}

production

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Air from mouth contains

C O_{2}

which is utilized in photosynthesis. Hence increase in

O_{2}

production

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Bacteria from mouth will infect plant. Hence reduction in

O_{2}

production

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Water is already in contact with air. Hence air from mouth will have no effect

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Solution

The correct option is B Air from mouth contains $C O_{2}$ which is utilized in photosynthesis. Hence increase in $O_{2}$ production
Photosynthesis is the process in which green plants use the sunlight to convert carbon dioxide, water and minerals to oxygen and organic compounds. In the given experiment, when a pipe is used to blow air from mouth in the beaker, the air from mouth is utilized in photosynthesis, as human beings breathe out carbon dioxide. It results in the increased production of oxygen.

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Photosynthesis in an aquatic plant was measured by counting the number of O2 bubbles coming out ofthe cut end ofthe plant. What will happen to O2 production if you use a pipe to blow air from your mouth into water in the beaker?

Photosynthesis in an aquatic plant was measured by counting the number of $O_{2}$ bubbles coming out ofthe cut end ofthe plant. What will happen to $O_{2}$ production if you use a pipe to blow air from your mouth into water in the beaker?