Figure 9.3 -Phosphofructokinase Is an Allosteric Enzyme That Catalyzes the Conversion of the Conversion

question 54

Multiple Choice

Figure 9.3
-Phosphofructokinase is an allosteric enzyme that catalyzes the conversion of fructose-6-phosphate to fructose-1,6-bisphosphate, an early step of glycolysis. In the presence of oxygen, an increase in the amount ATP in a cell would be expected to

• A)inhibit the enzyme and thus slow the rates of glycolysis and the citric acid cycle.
• B)activate the enzyme and thus slow the rates of glycolysis and the citric acid cycle.
• C)inhibit the enzyme and thus increase the rates of glycolysis and the citric acid cycle.
• D)activate the enzyme and increase the rates of glycolysis and the citric acid cycle.
• E)inhibit the enzyme and thus increase the rate of glycolysis and the concentration of citrate.

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Definitions:

Groupthink

A psychological phenomenon that occurs within a group of people in which the desire for harmony or conformity results in an irrational or dysfunctional decision-making outcome.

Harmony

The combination of simultaneously sounded musical notes to produce chords and chord progressions having a pleasing effect.

Fundamental Attribution Error

The tendency to overestimate the influence of personal traits and underestimate the effects of situations when explaining others' behaviors.

Milgram's Research

A series of social psychology experiments conducted by Stanley Milgram, which measured the willingness of participants to obey an authority figure who instructed them to perform acts conflicting with their personal conscience.