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Cellular Respiration Flashcards

Biology8 CardsCreated 4 months ago

This deck covers key questions and answers about the process of cellular respiration, including glycolysis, the Krebs cycle, and the electron transport chain.

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What are the products of glycolysis?

2 molecules of pyruvic acid, 2 molecules of NADH, and a net gain of 2 ATP molecules.
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Key Terms

Term
Definition
What are the products of glycolysis?
2 molecules of pyruvic acid, 2 molecules of NADH, and a net gain of 2 ATP molecules.
How is the function of NAD+ similar to that of NADP+?
Both molecules are electron carriers.
What happens to pyruvic acid in the Krebs cycle?
Pyruvic acid is broken down into carbon dioxide through a series of energy-extracting reactions collectively called the Krebs cycle.
Look at Figure 9-5 and list the products of the Krebs cycle. What happens to each of these products?
The products are ATP, NADH, FADH2, and CO2. CO2 is expelled in exhalation. The ATP molecules are used to power cellular activities. The NADH and FADH2...
How does the electron transport chain use the high-energy electrons from glycolysis and the Krebs cycle?
To power the 'pumping' of H+ ions against a concentration gradient from the matrix to the intermembrane space.
How does the cell use the charge differences that build up across the inner mitochondrial membrane during cellular respiration?
The charge differences force protons through ATP synthase, which powers the conversion of ADP to ATP.
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Cellular Respiration Flashcards
TermDefinition
What are the products of glycolysis?
2 molecules of pyruvic acid, 2 molecules of NADH, and a net gain of 2 ATP molecules.
How is the function of NAD+ similar to that of NADP+?
Both molecules are electron carriers.
What happens to pyruvic acid in the Krebs cycle?
Pyruvic acid is broken down into carbon dioxide through a series of energy-extracting reactions collectively called the Krebs cycle.
Look at Figure 9-5 and list the products of the Krebs cycle. What happens to each of these products?
The products are ATP, NADH, FADH2, and CO2. CO2 is expelled in exhalation. The ATP molecules are used to power cellular activities. The NADH and FADH2 molecules are used in the electron transport chain to generate ATP.
How does the electron transport chain use the high-energy electrons from glycolysis and the Krebs cycle?
To power the 'pumping' of H+ ions against a concentration gradient from the matrix to the intermembrane space.
How does the cell use the charge differences that build up across the inner mitochondrial membrane during cellular respiration?
The charge differences force protons through ATP synthase, which powers the conversion of ADP to ATP.
How many molecules of ATP are produced in the entire breakdown of glucose?
About 36 molecules of ATP per molecule of glucose.
How is the cell like a furnace?
It can 'burn' many different types of fuels, not just glucose. Also, a cell releases heat energy through the breakdown of glucose that heats the organism, just as a furnace releases energy to heat a building.