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Home Page Essay samples Chapter 9 Cellular respiration and fermentation - Flashcards
Chapter 9 Cellular respiration and fermentation – Flashcards
Chapter 9 Cellular respiration and fermentation – Flashcards

Chapter 9 Cellular respiration and fermentation – Flashcards

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  • Pages: 2 (403 words)
  • Published: June 20, 2022
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question

Catabolism

answer

Degradative pathways, oxidative, extracts energy in the form of ATP => Exergonic

question

Anabolism

answer

Biosynthesis, reductive, needs energy, ATP provides Energy and gets converted to ADP=>Endergonic

question

in Figure 1) what box would you draw an X through to trigger the onset of Fermentation RXNs

answer

02

B/C When an ETC electron acceptor is not available, fermentation reactions kick in.

question

If you used a radioactive label to trace the pathways of Carbon in cell respiration, the label would begin in glucose and end in CO2

answer

TRUE

B/C The six carbons in each molecule of glucose are

...

oxidized and released as six molecules of CO2

question

If you used a radioactive label to trace the pathway of Oxygen, the label would end in CO2

answer

False

B/C Spent electrons from the electron transport chain are transferred to oxygen, resulting in the formation of water.

question

What is the best summary of the net production of ATP?

answer

2 ATP (glycolysis) + 2 ATP (citric acid cycle) + 25 ATP (chemiosmosis) = 29 ATP produced per glucose molecule

B/C Glycolysis and the citric acid cycle each produce 2 ATP per glucose molecule, but chemiosmosis produces a large payoff of ATP, about 25 ATP per glucose molecule (depending on conditions), for a net of 29.

question

A newly developed insecticide compound steals high-energy electrons from FADH2 and NADH before they can bind to the electron transport chain. Why does this kill insects?

answer

The ETC cannot properly

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establish a proton gradient to drive chemiosmotic production of ATP

B/C FADH2 and NADH supply the energy needed to create the proton gradient that drives ATP production by ATP synthase proteins.

question

what correctly associates a process in chemical respiration with 1) what goes in and 2) what comes out

answer

Citric acid cycle: (1) Acetyl CoA; (2) NADH, ATP (or GTP), FADH2,, and CO2

question

During Cellular Respiration...

answer

Glucose is oxidized and there is net production of ATP

question

What is the term for metabolic pathways that use stored energy by breaking down complex molecules

answer

Catabolic Pathways

question

Which of the listed statements describes the results of the following reaction?
C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + Energy

answer

C6H12O6 is oxidized and O2 is reduced.

question

What is the major adaptive advantage of cellular respiration?

answer

Produce ATP

question

what kind of molecules serve as electron acceptors in Cellular Respiration

answer

Molecules with low potential energy
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