Tuftsin (Named After Tufts University) Has Important Functions in the Human

question 10

Multiple Choice

Tuftsin (named after Tufts University) has important functions in the human immune system. It binds to stereospecific receptors at the surface of macrophages and leukocytes, stimulating their bactericidal and tumoricidal activity. All stereocenters in this molecule have S-configurations. How many stereoisomers of tuftsin exist, which do not have the correct stereochemistry for receptor-binding?

• A) 7
• B) 15
• C) 31
• D) 32

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Definitions:

Act Out

To behave badly or inappropriately, often in response to emotional stress or frustration.

Positive Punishment

The use of a physically or psychologically painful event as the punishment.

Spanking

A form of punishment that involves striking the buttocks, typically with the hand, as a disciplinary measure.

Punishing Stimulus

A stimulus that decreases the likelihood of a behavior recurring, often by inducing discomfort or an undesirable outcome following the behavior.