Why Does Sour Cream Have a Sharp, Tart Flavor

question 37

Multiple Choice

Why does sour cream have a sharp, tart flavor

• A) from the ADP produced by microbes during glycolysis
• B) from the lactic acid, produced anaerobically by microbes
• C) from the ethyl alcohol formed as the cream is broken down by microbes
• D) from the citric acid released by microbes during the citric acid cycle

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Definitions:

Startled

The act of experiencing a sudden, involuntary reaction to an unexpected event or stimulus, often involving physical movement.

Classical Conditioning

A learning process that occurs when two stimuli are repeatedly paired; a response which is at first elicited by the second stimulus is eventually elicited by the first stimulus alone.

Instrumental Conditioning

A learning process in which behavior is modified by the consequences of the behavior, through reinforcement or punishment.

CR and US

denote Conditioned Response and Unconditioned Stimulus respectively; terms used in classical conditioning to describe learned responses and natural triggers.