Catalysts — Unit test

Question 6 • PA Human Anatomy & Physiology A 2026-2027 SMITH IC

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Answer

Photosynthesis removes carbon from the atmosphere, and cellular respiration releases carbon back into the atmosphere.

Photosynthesis is part of the carbon cycle, and cellular respiration is not.

Only plants perform photosynthesis, and only animals perform cellular respiration.

Photosynthesis releases carbon into the atmosphere, and cellular respiration removes carbon from the atmosphere.

Prokaryotic and Eukaryotic Cells

Unit Test

Unit Test