Krebs Cycle quiz #1 Flashcards
Krebs Cycle quiz #1
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Which of these is not a product of the citric acid cycle?
Oxygen is not a product of the citric acid cycle. What are the two other molecules released during the Krebs cycle besides ATP?
The Krebs cycle releases NADH and FADH2 besides ATP. Which of these is not a product of the citric acid cycle (also called the Krebs cycle)?
Oxygen is not a product of the citric acid cycle. Where do the reactions of the citric acid cycle occur in eukaryotic cells?
The reactions of the citric acid cycle occur in the mitochondrial matrix of eukaryotic cells. Where does the citric acid cycle occur in eukaryotic cells?
The citric acid cycle occurs in the mitochondrial matrix of eukaryotic cells. Where does the citric acid cycle occur?
The citric acid cycle occurs in the mitochondrial matrix. During the citric acid cycle, what happens to acetyl-CoA?
During the citric acid cycle, acetyl-CoA is oxidized to produce ATP, NADH, FADH2, and CO2. Which of the following is needed as a reactant for the first step of the citric acid cycle?
Oxaloacetate is needed as a reactant for the first step of the citric acid cycle. Which of the following is a product of the Krebs cycle?
NADH is a product of the Krebs cycle. Which of the following statements about the citric acid cycle is correct?
The citric acid cycle produces ATP, NADH, FADH2, and CO2. How many turns of the citric acid cycle does it take to process one glucose molecule?
It takes two turns of the citric acid cycle to process one glucose molecule. Which step(s) of the Krebs cycle does (do) not produce any usable energy?
The regeneration of oxaloacetate does not produce ATP directly. Where in the eukaryotic cell does the citric acid cycle occur?
The citric acid cycle occurs in the mitochondrial matrix of eukaryotic cells. Where does the citric acid cycle occur in eukaryotes?
The citric acid cycle occurs in the mitochondrial matrix in eukaryotes. Which of the following does not occur during the citric acid cycle?
The production of oxygen does not occur during the citric acid cycle. Which of the following is not a product of the Krebs cycle?
Oxygen is not a product of the Krebs cycle. Which of the following are produced during the citric acid cycle?
ATP, NADH, FADH2, and CO2 are produced during the citric acid cycle. Which of the following is not an end product of the citric acid cycle?
Oxygen is not an end product of the citric acid cycle. Where does the citric acid cycle take place?
The citric acid cycle takes place in the mitochondrial matrix. What happens to all of the carbons during the citric acid cycle?
All of the carbons from acetyl-CoA are released as CO2 during the citric acid cycle. Which of the following products is made in the citric acid cycle?
CO2 is made in the citric acid cycle. Why are the Krebs cycle and ETC considered aerobic processes?
The Krebs cycle and ETC are considered aerobic because they require oxygen indirectly for the electron transport chain. What is a by-product of the Krebs cycle?
CO2 is a by-product of the Krebs cycle. What product of the Krebs cycle is a waste product?
CO2 is a waste product of the Krebs cycle. What are the reactants and products of the Krebs cycle?
Reactants: Acetyl-CoA and oxaloacetate; Products: ATP, NADH, FADH2, and CO2. Where does the citric acid cycle take place in the cells of eukaryotic organisms?
The citric acid cycle takes place in the mitochondrial matrix of eukaryotic cells. Which of the following carriers are produced during the citric acid cycle?
NADH and FADH2 are produced during the citric acid cycle. The citric acid cycle requires which of the following three molecules as inputs?
Acetyl-CoA, oxaloacetate, and water are required as inputs for the citric acid cycle. How many molecules of NADH are generated for each turn of the TCA cycle?
Three molecules of NADH are generated for each turn of the TCA cycle. Where in a eukaryotic cell does the Krebs cycle occur?
The Krebs cycle occurs in the mitochondrial matrix of eukaryotic cells. Where in the cell does the citric acid cycle occur?
The citric acid cycle occurs in the mitochondrial matrix. Which of the following is not a product of the citric acid cycle?
Oxygen is not a product of the citric acid cycle. What molecule is a product of the citric acid/Krebs cycle?
CO2 is a product of the citric acid/Krebs cycle. Which of the following occurs during the citric acid cycle?
Oxidation of acetyl-CoA occurs during the citric acid cycle. What are two products of the Krebs cycle?
Two products of the Krebs cycle are NADH and CO2. Which of the following organelles is the site of the Krebs cycle?
The mitochondrion is the site of the Krebs cycle. What is the net production of ATP in the citric acid cycle?
The net production of ATP in the citric acid cycle is 2 ATP per glucose molecule. How many molecules of carbon dioxide are released during one turn of the citric acid cycle?
Two molecules of carbon dioxide are released during one turn of the citric acid cycle. How many ATP molecules are produced during the Krebs cycle?
Two ATP molecules are produced during the Krebs cycle per glucose molecule. Where in the cell does the Krebs cycle occur?
The Krebs cycle occurs in the mitochondrial matrix.
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