Aerobic Respiration

Question 1

Which word equation correctly describes aerobic respiration in cells?

Accepted Answer

glucose + oxygen → carbon dioxide + water (energy transferred to the environment)

Answer

glucose + oxygen → carbon dioxide + water (energy stored in glucose)

Answer

glucose + oxygen → carbon dioxide + ATP

Answer

glucose → carbon dioxide + water (energy transferred to the environment)

Question 2

During intense exercise, muscle cells turn glucose and oxygen into energy. In which part of the cell does the full aerobic breakdown of glucose happen?

Accepted Answer

Mitochondria

Answer

Nucleus

Answer

Cytoplasm

Answer

Chloroplast

Question 3

Which statement correctly identifies the cellular location where the complete aerobic respiration of glucose occurs and explains why that location is suitable?

Accepted Answer

The mitochondrion – because its inner membrane has many folds (cristae) that provide a large surface area for the electron‑transport chain where most energy from glucose is released.

Answer

The nucleus – because it stores the cell’s DNA, which controls all metabolic processes.

Answer

The chloroplast – because it uses light energy to make sugar, so it must also break it down with oxygen.

Answer

The cell membrane – because oxygen enters the cell there, so the whole respiration process happens at the membrane.

Try three questions

Which word equation correctly describes aerobic respiration in cells?

During intense exercise, muscle cells turn glucose and oxygen into energy. In which part of the cell does the full aerobic breakdown of glucose happen?

Which statement correctly identifies the cellular location where the complete aerobic respiration of glucose occurs and explains why that location is suitable?

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