Respiration and its importance — task. Biology CBSE Live product, Class 7 (2025-26).

Mark the appropriate answer.

1. X is broken down using Y to release carbon dioxide, Z, and energy.
\(X + Y \rightarrow Carbon dioxide + Z + Energy\)
X, Y, and Z are three different components of the process. What do X, Y, and Z stand for?

X = Carbon dioxide, Y = Oxygen, Z = Glucose
X = Glucose, Y = Oxygen, Z = Water
X = Water, Y = Carbon dioxide, Z = Glucose
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X = Oxygen, Y = Glucose, Z = Carbon dioxide

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7. Respiration and its importance

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