Chapter 7: Cellular Respiration, Part 2

Question 1

the eight reactions of the citric acid cycle (tricarboxylic acid cycle oxidize acetyl groups completely to CO2, generate 3 NADH and 1 FADH2, and synthesize 1 ATP by substrate-level phosphorylation

Answer 1

tricarboxylic acid cycle or Krebs cycle

Question 2

series of electron carriers that alternately pick up and release electronsm and ultimately transfer them to their final acceptor, oxygen

Answer 2

mitochondrial electron transfer system (ETS)

Question 3

proteins with a heme prosthetic group that contains an iron atom that accepts and donates electrons

Answer 3

cytochromes

Question 4

• stored energy produced by proton and voltage gradient

- energy is used for ATP synthesis and cotransport of substances to and from mitochondria

Answer 4

proton-motive force