The week goes by too fast and I almost forgot about my Biology Quiz. It's pretty simple but I'm also working on a research paper at the same.
ANY help I will greatly appreciate.
10 Questions
Question 15
What would occur if NAD+ and FAD were not regenerated for the Krebs cycle?
Answer
The further breakdown of pyruvate in the Krebs cycle would stop because there would be no place for the high energy electrons to go
The pyruvate would be recycled back to glycolysis to form glucose again
O2 would accept the high energy electrons and form water
The cycle would continue until the NAD+ was available again
Question 16
The electron transport chain is used during which of the following processes?
Answer
lactate fermentation
aerobic cellular respiration
glycolysis
alcoholic fermentation
Question 17
The enzymes used by the electron transport chain are located:
Answer:
in the cytoplasm.
in the outer membrane of the mitochondrion.
in the inner membrane of the mitochondrion.
between the inner and outer membranes of the mitochondrion.
Question 18
As electrons move through the electron transport chain, which of the following occurs?
Answer:
e- are pumped from the matrix to the intermembrane compartment of the mitochondrion.
H+ move down their concentration gradient from matrix to the intermembrane compartment of the mitochondrion
Energy from ATP is used to pump H+ across the inner membrane of the mitochondrion.
ATP is synthesized from ADP as H+ flow down the electron transport chain.
H+ are pumped from the matrix to the intermembrane compartment of the mitochondrion
Question 19
What is the purpose of the proton gradient in the electron transport chain?
Answer:
To make water by combining with O2
To provide the energy to make ATP
To accept electrons
To capture the energy from ATP
Question 20
A cell produces approximately 30 ATP per glucose, however, if you calculated the total energy in a glucose molecule, 90 ATP should be generated. What is the best explanation for this difference?
Answer:
Some of the energy is destroyed
Scientists have not figured out where the rest of the energy goes
ATP has more energy than originally thought
Some energy is lost as heat
Question 21
We inhale O2 and we exhale CO2. What would happen if we did not breathe in O2?
Answer:
We would not make enough ATP to meet our energy requirements
We would not have enough enzymes to catalyze reactions.
We would not be able to perform lactic acid fermentation.
We would not be able to synthesize organic molecules from inorganic molecules.
We would not be affected because we can switch to alcohol fermentation.
Question 22
When a cell uses fats for aerobic respiration, it first _______
Answer:
removes amino group
hydrolyzes fats to glycerol and fatty acids.
fatty acids and sugars.
sugars and amino acids.
sugars and glycerol.
Question 23
Which of the following could be electron acceptors in anaerobic respiration?
Answer:
Nitrate or oxygen
Sulfate or oxygen
Lactic acid
Nitrate or sulfate
All are correct
Question 24
The sole source of ATP production in cells using fermentation only is:
Answer:
Glycolysis
Kreb's cycle
Photosynthesis
Electron transport
The Calvin cycle
Question 25
Muscle cells use lactic acid fermentation to:
Answer:
Generate NAD+ so that glycolysis can continue in the absence of O2
Produce ATP in the presence of O2
Produce more ATP than in respiration
Allow an animal to survive for long periods of time in the absence of oxygen
Produce less CO2
11 Questions actually
11 Questions actually
ANY help I will greatly appreciate.
10 Questions
Question 15
What would occur if NAD+ and FAD were not regenerated for the Krebs cycle?
Answer
The further breakdown of pyruvate in the Krebs cycle would stop because there would be no place for the high energy electrons to go
The pyruvate would be recycled back to glycolysis to form glucose again
O2 would accept the high energy electrons and form water
The cycle would continue until the NAD+ was available again
Question 16
The electron transport chain is used during which of the following processes?
Answer
lactate fermentation
aerobic cellular respiration
glycolysis
alcoholic fermentation
Question 17
The enzymes used by the electron transport chain are located:
Answer:
in the cytoplasm.
in the outer membrane of the mitochondrion.
in the inner membrane of the mitochondrion.
between the inner and outer membranes of the mitochondrion.
Question 18
As electrons move through the electron transport chain, which of the following occurs?
Answer:
e- are pumped from the matrix to the intermembrane compartment of the mitochondrion.
H+ move down their concentration gradient from matrix to the intermembrane compartment of the mitochondrion
Energy from ATP is used to pump H+ across the inner membrane of the mitochondrion.
ATP is synthesized from ADP as H+ flow down the electron transport chain.
H+ are pumped from the matrix to the intermembrane compartment of the mitochondrion
Question 19
What is the purpose of the proton gradient in the electron transport chain?
Answer:
To make water by combining with O2
To provide the energy to make ATP
To accept electrons
To capture the energy from ATP
Question 20
A cell produces approximately 30 ATP per glucose, however, if you calculated the total energy in a glucose molecule, 90 ATP should be generated. What is the best explanation for this difference?
Answer:
Some of the energy is destroyed
Scientists have not figured out where the rest of the energy goes
ATP has more energy than originally thought
Some energy is lost as heat
Question 21
We inhale O2 and we exhale CO2. What would happen if we did not breathe in O2?
Answer:
We would not make enough ATP to meet our energy requirements
We would not have enough enzymes to catalyze reactions.
We would not be able to perform lactic acid fermentation.
We would not be able to synthesize organic molecules from inorganic molecules.
We would not be affected because we can switch to alcohol fermentation.
Question 22
When a cell uses fats for aerobic respiration, it first _______
Answer:
removes amino group
hydrolyzes fats to glycerol and fatty acids.
fatty acids and sugars.
sugars and amino acids.
sugars and glycerol.
Question 23
Which of the following could be electron acceptors in anaerobic respiration?
Answer:
Nitrate or oxygen
Sulfate or oxygen
Lactic acid
Nitrate or sulfate
All are correct
Question 24
The sole source of ATP production in cells using fermentation only is:
Answer:
Glycolysis
Kreb's cycle
Photosynthesis
Electron transport
The Calvin cycle
Question 25
Muscle cells use lactic acid fermentation to:
Answer:
Generate NAD+ so that glycolysis can continue in the absence of O2
Produce ATP in the presence of O2
Produce more ATP than in respiration
Allow an animal to survive for long periods of time in the absence of oxygen
Produce less CO2
11 Questions actually
11 Questions actually