What gas is given off during cellular respiration
a. oxygen
b. methane
c. hydrogen
d. carbon dioxide

Carbon dioxide gas is given off during cellular respiration of animal cells

and tissues in the body.

The carbondioxide gas is formed as a result of reaction between the

molecules such as Glucose and water .

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O+ ATP

The carbondioxide gas given off is then used by the plants for

photosynthesis after which Oxygen is given off for use by animals.

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❖ The correct answer choice is D. Carbon dioxide.

You can see this in the cellular respiration equation:

(sugar + glucose  → carbon dioxide + water + usable energy)

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