Use the Following Information to Answer the Questions Below

question 23

Multiple Choice

Use the following information to answer the questions below.
In the presence of oxygen,the three-carbon compound pyruvate can be catabolized in the citric acid cycle.First,however,the pyruvate (1) loses a carbon,which is given off as a molecule of CO₂,(2) is oxidized to form a two-carbon compound called acetate,and (3) is bonded to coenzyme A.
-Why is coenzyme A,a sulphur-containing molecule derived from a B vitamin added to acetate?

• A)because sulphur is needed for the molecule to enter the mitochondrion
• B)in order to utilize this portion of a B vitamin that would otherwise be a waste product from another pathway
• C)to provide a relatively unstable molecule whose acetyl portion can be readily transferred to a compound in the citric acid cycle
• D)because it drives the reaction that regenerates NAD⁺
• E)in order to remove one molecule of CO₂

Understand the implications of classical and operant conditioning principles in real-world settings, such as education, therapy, and work environments.

Understand how secondary reinforcers derive their power from association with primary reinforcers.

Recognize examples of conditioned taste aversion and biological preparedness.

Identify and explain the phenomenon of insight learning.

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