Which is not a characteristic of proteins?

Here is the answer to the MCAT practice test question – Which is not a characteristic of proteins?

Below are the answer and explanations to the MCAT test question.

Which is not a characteristic of proteins?

  1. Can self-replicate
  2. Can act as a hormone
  3. Acts in cell membrane trafficking
  4. Can bind foreign materials

Tips:

Proteins have numerous functions in the body; they can be hormones (chemical messengers), enzymes (catalyze chemical reactions), structural proteins (physical support), transport proteins (carriers of important materials), and antibodies (which bind foreign particles).

However, proteins cannot self-replicate; DNA is the only molecule capable of self-replication.

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