Use the Following to Answer the Questions Below

question 12

Multiple Choice

Use the following to answer the questions below:
Identify the standard amino acid with each of the characteristics using the response list. Responses may be used more than once or need not be used at all.

-Only standard amino acid with a methyl group attached to its alpha carbon atom

• A) proline
• B) cysteine
• C) glycine
• D) alanine

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Definitions:

Thoracic Cavity

The chamber of the body of vertebrates that is protected by the thoracic wall and contains the lungs and heart.

Ventral Cavity

A large body cavity that houses many organs, including those in the thoracic and abdominal regions.

Feedback Mechanism

A process in biological and mechanical systems where the system's output is fed back into the system as input, adjusting its performance to meet a desired goal.

Effector

An organ or cell that acts in response to a stimulus, often involved in muscle contraction or gland secretion.