Question Video: Identifying the Products of Aerobic Respiration | Nagwa Question Video: Identifying the Products of Aerobic Respiration | Nagwa

Question Video: Identifying the Products of Aerobic Respiration Biology • Second Year of Secondary School

Which of the following gases is produced by aerobic respiration? [A] Sulfur dioxide [B] Carbon monoxide [C] Carbon dioxide [D] Oxygen [E] Hydrogen

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Video Transcript

Which of the following gases is produced by aerobic respiration? (A) Sulfur dioxide, (B) carbon monoxide, (C) carbon dioxide, (D) oxygen, or (E) hydrogen.

Respiration is the cellular process whereby glucose is broken down to release energy in the form of adenosine triphosphate, or ATP for short. Just like animal cells, plant cells are capable of two types of respiration: aerobic, which requires oxygen, and anaerobic, which doesn’t require oxygen. This question is asking us about aerobic respiration, which is the more common type. So let’s have a look at it in more detail.

You may recall that aerobic respiration takes place in organelles called mitochondria. Let’s see the equation for the chemical reaction that happens here. From this equation, we can see that glucose reacts with oxygen to produce carbon dioxide, water, and energy in the form of ATP. The substances shown to the left of the arrow are known as the reactants because they are present at the start of the reaction. And the substances shown to the right of the arrow are known as the products because they are produced during the reaction.

Now, let’s return to our question. The only two gases involved in aerobic respiration are carbon dioxide and oxygen. And the question is asking us to decide which one is produced by the reaction. We know that oxygen is a reactant. Therefore, the gas which is produced by aerobic respiration is (C) carbon dioxide.

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