Which of the following best describes the environment around a cell performing cellular respiration?
A)The concentration of oxygen around the cell is constantly being lowered.
B)The concentration of oxygen around the cell causes more carbon dioxide to diffuse out of the cell.
C)The release of products of cellular respiration causes oxygen to diffuse into the blood plasma.
D)The carbon dioxide concentration outside the cell constantly decreases.

Question

Quizplus · Accepted Answer

Cellular respiration requires oxygen as a reactant, so as the cell performs cellular respiration, it will consume more oxygen and lower the concentration of oxygen around the cell. This is why animals need to constantly breathe in oxygen to support cellular respiration.

Option B is incorrect because carbon dioxide is produced as a waste product of cellular respiration, so more carbon dioxide will be diffusing out of the cell regardless of the concentration of oxygen around the cell.

Option C is incorrect because the products of cellular respiration do not include oxygen - they are carbon dioxide, water, and ATP. Oxygen is a reactant that is required for cellular respiration to occur.

Option D is incorrect because, as mentioned in Option B, carbon dioxide production is not determined by the concentration of oxygen around the cell.

Which of the Following Best Describes the Environment Around a Cell