Select the correct statement about cellular respiration.

Plants carry out cellular respiration only in organs such as roots that cannot carry out photosynthesis.
Cellular respiration and breathing differ in that cellular respiration is at the cellular level, whereas breathing is at the organismal level.
Animals carry out cellular respiration whereas plants carry out photosynthesis.

1 answer

The correct statement about cellular respiration is:

Cellular respiration and breathing differ in that cellular respiration is at the cellular level, whereas breathing is at the organismal level.

This statement accurately describes the distinction between the biochemical process of cellular respiration, which occurs in cells to convert biochemical energy from nutrients into ATP, and breathing, which is the physiological process of taking in oxygen and expelling carbon dioxide at the level of the whole organism.

The other statements contain inaccuracies:

  • Plants perform cellular respiration in all cells, not just in non-photosynthetic organs like roots.
  • Both animals and plants carry out cellular respiration; plants also perform photosynthesis.