Asked by tatiana vayserberg on Jun 13, 2024

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In which of the following aerobic respiration stages does a chain of several electrons transport molecules and release energy to form a proton gradient?

A) Formation of acetyl CoA
B) Citric acid cycle
C) Electron transport and chemiosmosis
D) Glycolysis
E) Dehydrogenations

Electron Transport

A series of chemical reactions that transfer electrons from electron donors to electron acceptors via redox reactions and couples this electron transfer with the transfer of protons (H+ ions) across a membrane.

Proton Gradient

A gradient of hydrogen ions across a membrane, often used in the process of generating ATP in cells, particularly within the mitochondria during cellular respiration.

Aerobic Respiration

A metabolic process that converts oxygen and glucose into energy in the form of ATP, water, and carbon dioxide, taking place in the mitochondria.

  • Obtain an understanding of the principal elements and steps involved in cellular respiration, particularly glycolysis, the citric acid cycle, and oxidative phosphorylation.
  • Explain the role and mechanisms of the electron transport chain and the ATP synthase complex in producing ATP.
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Verified Answer

RN
Rubin NguyenJun 18, 2024
Final Answer :
C
Explanation :
The electron transport chain and chemiosmosis are stages in aerobic respiration where a series of electron carriers, located in the inner mitochondrial membrane, transfer electrons. This process releases energy used to pump protons across the membrane, creating a proton gradient that drives the synthesis of ATP.