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Jugar Test
1. 
A predominant genus of bacteria found in the human gut is microbiota. These anaerobic bacteria undergo fermentation in the gut, converting otherwise nondigestible carbohydrates into fermentation products that are used by the host for energy. Which of the following would most likely disrupt carbohydrate metabolism in these bacteria?
A.
A toxin that inhibits the function of an enzyme during glycolysis.
B.
A toxin that prevents the formation of Krebs cycle products
C.
A toxin that inhibits the function of ATP synthase
D.
A toxin that breaks down the membrane proteins of the electron transport chain
2. 
Which process/processes are common to both aerobic and anaerobic pathways
A.
Oxidation of Glucose forming 2 pyruvate molecules
B.
Reduction of Glucose forming 2 pyruvate molecules
C.
Reduction of 2 pyruvate molecules producing NADH
D.
Oxidation of pyruvate molecules producing NAD+m
3. 
One of the answers listed below are compounds associated with anaerobic respiration. Select the exception.
A.
Pyruvate
B.
Lactate (Lactic Acid)
C.
Ethanol
D.
Carbon dioxide
4. 
A lab extracts the fluid from the cytoplasm and matrix. Which of the following would best match a person suffering from a punctured lung.
5. 
A lab extracts the fluid from the cytoplasm and matrix. Which of the following would best match a person suffering from a punctured lung.
A.
Row A
B.
Row B
C.
Row C
D.
Row D
6. 
Which of the following occurs in both photosynthesis and respiration?
A.
The reduction of carbon molecules in the calvin and Krebs cycle to produce ATP
B.
The use of the electron carrier NAD+ , and ATP
C.
chemiosmosis with inner membranes impermeable to protons.
D.
Both are consistent in using catabolic pathways to generate high energy ATP
7. 
Glycolysis takes place inside the cytoplasm of a cell. Which is not a product or reactant of this process?
A.
Pyruvate
B.
Glucose
C.
Oxygen
D.
ATP
8. 
In ________ conditions, pyruvate is converted into __________ in an effort to regenerate __________.
A.
aerobic, lactate, NADH
B.
aerobic, pyruvate, NADH
C.
aerobic, lactate . . . NAD+
D.
anaerobic, lactate . . . NAD+
9. 
Changes in lactate and pyruvate were measured in an athlete's blood during and following a mild exercise period and compared to the period before the exercise. What do these curves show?
A.
Before the exercise, there was no pyruvate produced because there was no cell respiration
B.
During the exercise, there was not enough O₂ available for cell respiration, so the process was partly anaerobic.
C.
During the exercise, the level of lactate increased due to aerobic respiration.
D.
After the exercise, the level of lactate decreased because there was enough pyruvate to be used for anaerobic cell respiration.
E.
After the exercise, the level of lactate decreased because there was enough pyruvate to be used for aerobic cell respiration.