Comparing Aerobic and Anaerobic Respiration Flashcards

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What is the main difference between aerobic and anaerobic respiration?

Aerobic respiration uses oxygen, but anaerobic respiration does not use oxygen.

Which type of respiration releases more energy from one molecule of glucose, aerobic or anaerobic, and why?

Aerobic respiration releases more energy because the glucose is completely broken down to carbon dioxide and water.

In animal cells, what are the products of aerobic respiration and of anaerobic respiration?

In animal cells, aerobic respiration makes carbon dioxide and water, but anaerobic respiration makes lactic acid.

In yeast or plant cells, how do the products of anaerobic respiration differ from those of aerobic respiration?

Aerobic respiration makes carbon dioxide and water, but anaerobic respiration makes ethanol and carbon dioxide.

Where in the cell does most aerobic respiration take place, and where does anaerobic respiration take place?

Most aerobic respiration happens in the mitochondria, but anaerobic respiration happens in the cytoplasm.

What is one similarity between aerobic and anaerobic respiration?

Both aerobic and anaerobic respiration break down glucose to release energy in cells.

Why does anaerobic respiration release less energy than aerobic respiration?

Anaerobic respiration releases less energy because the glucose is only partly broken down, so some energy stays locked in the products.

During hard exercise, why might muscles change from aerobic to anaerobic respiration?

During hard exercise, muscles may use anaerobic respiration because the heart and lungs cannot supply oxygen fast enough.

Why is aerobic respiration better than anaerobic respiration for long-distance sports?

Aerobic respiration releases more energy and can continue for a long time without a build-up of lactic acid.

In animals, what is one advantage and one disadvantage of anaerobic respiration compared with aerobic respiration?

A benefit is that anaerobic respiration can release energy without oxygen. A drawback is that it makes lactic acid, which can cause muscle pain and tiredness.

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