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Question Video: Identifying the Organelle that Acts as the Primary Site of Aerobic Respiration Biology

The diagram provided shows a basic outline of an animal cell. Which letter indicates the organelle that is the main site of aerobic respiration?

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Video Transcript

The diagram provided shows a basic outline of an animal cell. Which letter indicates the organelle that is the main site of aerobic respiration?

Cellular respiration is the process of converting the energy in glucose to ATP to provide energy for our cells. There are two types of cellular respiration, aerobic and anaerobic. Aerobic respiration requires the use of oxygen, while anaerobic does not. In aerobic respiration, glucose is combined with oxygen to produce carbon dioxide, water, and energy in the form of ATP. This question is asking us to identify where aerobic respiration takes place. Let’s look at each of these labels to see which one is correct.

Letter A points to the nucleus. This is where the majority of the genetic material is stored in the form of highly compacted chromosomes. Letter D points to the cytoplasm. This is the material inside the cell enclosed by the membrane. This is actually the location of the cell where anaerobic respiration occurs. Letter C points to the cell membrane. This is a phospholipid bilayer that holds the cell contents together and protects them from the environment. Letter B points to a mitochondrion. This is the organelle responsible for generating most of the energy for the cell. It does this by converting the energy in glucose to ATP in aerobic respiration.

Therefore, the letter that indicates the organelle that is the main site of aerobic respiration is letter B.

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