19. a cell is ready to break down pyruvate
and use it for energy. the end result of the
process includes carbon dioxide, atp, and
byproducts. which energy producing
pathway did the cell follow?
o a. cellular respiration
o b. acellular respiration
o c. krebs's pathway
o d. fermentation

The correct option is C. The cell followed Kreb's pathway.

Explanation:

Krebs cycle can be described as a metabolic pathway for the release of energy during the process of aerobic respiration. The Kreb's cycle constitutes a series of oxidation reactions through which pyruvate is converted into carbon dioxide. About 15 moles of ATP is released as a result of Kreb's cycle. The reactions of the Kreb's cycle take place mostly in the mitochondria. The Kreb's cycle is commonly named as the Citric Acid Cycle.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.

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