Question

what is the correct equation for cellular respiration?

multiple choice

\\( \text{glucose} + 6\\,\text{o}_2 + 6\\,\text{co}_2 \
ightarrow 6\\,\text{h}_2\text{o} + \text{energy} + \text{heat} \\)

\\( \text{glucose} + 6\\,\text{co}_2 \
ightarrow 6\\,\text{o}_2 + 6\\,\text{h}_2\text{o} + \text{energy} + \text{heat} \\)

\\( \text{glucose} + 6\\,\text{o}_2 + 6\\,\text{h}_2\text{o} \
ightarrow 6\\,\text{co}_2 + \text{energy} + \text{heat} \\)

\\( \text{glucose} + 6\\,\text{o}_2 \
ightarrow 6\\,\text{co}_2 + 6\\,\text{h}_2\text{o} + \text{energy} + \text{heat} \\)

Explanation:

Cellular respiration is the process where glucose (\(C_6H_{12}O_6\)) and oxygen (\(O_2\)) are used to produce carbon dioxide (\(CO_2\)), water (\(H_2O\)), energy (ATP), and heat. The correct chemical equation for aerobic cellular respiration is \( \text{glucose} + 6O_2
ightarrow 6CO_2 + 6H_2O + \text{energy} + \text{heat} \) (or in chemical formula terms \( C_6H_{12}O_6 + 6O_2
ightarrow 6CO_2 + 6H_2O + \text{ATP (energy)} + \text{heat} \)). Let's analyze each option:

• First option: Has \(CO_2\) as a reactant, which is incorrect ( \(CO_2\) is a product of respiration, a reactant of photosynthesis).
• Second option: Has \(CO_2\) as a reactant and \(O_2\) as a product, which is the reverse (this is photosynthesis, not respiration).
• Third option: Has \(H_2O\) as a reactant, but in respiration, \(H_2O\) is a product (while in photosynthesis, \(H_2O\) is a reactant).
• Fourth option (assuming the last option's arrow and formula is \( \text{glucose} + 6O_2

ightarrow 6CO_2 + 6H_2O + \text{energy} + \text{heat} \)): Matches the correct reactants (glucose and \(O_2\)) and products (\(CO_2\), \(H_2O\), energy, heat) of cellular respiration.

Answer:

The correct option (assuming the last option is \( \text{glucose} + 6O_2
ightarrow 6CO_2 + 6H_2O + \text{energy} + \text{heat} \)) is the last multiple - choice option (the one with \( \text{glucose} + 6O_2
ightarrow 6CO_2 + 6H_2O + \text{energy} + \text{heat} \)). If we denote the options as A, B, C, D (with D being the last one), then the answer is D. \( \text{glucose} + 6O_2
ightarrow 6CO_2 + 6H_2O + \text{energy} + \text{heat} \)