Question

this question has 2 parts.organisms can use biomolecules other than glucose for cellular respiration. for example, lipids can be broken down into glycerol. glycerol eventually enters the glycolysis pathway.which steps of cellular respiration would still happen if starting only with glycerol from lipids? select all that apply.glycolysispyruvate processingatp synthasethe electron transport chainthe citric acid cyclewhich molecules would still be formed during cellular respiration if starting only with glycerol from lipids? select all that apply.nadhco₂acetyl-coaatppyruvate

Explanation:

• Glycerol enters glycolysis. Glycolysis produces pyruvate. Pyruvate processing converts pyruvate to acetyl - CoA. The citric acid cycle uses acetyl - CoA and produces NADH. The electron transport chain uses NADH (and FADH₂) and ATP synthase is involved in oxidative phosphorylation (using the proton - motive force from the electron transport chain). Since glycerol can enter glycolysis, all subsequent steps (pyruvate processing, citric acid cycle, electron transport chain, and ATP synthase (as part of oxidative phosphorylation which depends on the electron transport chain)) can occur.
• In glycolysis, ATP is produced (net gain of 2 ATP per glucose, but the process is similar for glycerol entering glycolysis), pyruvate is formed. Pyruvate processing forms acetyl - CoA. In glycolysis and the citric acid cycle, NADH is produced. In the citric acid cycle and pyruvate processing (for each pyruvate, one CO₂ is released during pyruvate processing and two during the citric acid cycle per acetyl - CoA), CO₂ is formed.

Answer:

For the first part (steps of cellular respiration): glycolysis, pyruvate processing, ATP synthase, the electron transport chain, the citric acid cycle.
For the second part (molecules formed): NADH, CO₂, acetyl - CoA, ATP, pyruvate.