Some Enzymes Contain Molecules in the Active Site That Help

question 20

Multiple Choice

Some enzymes contain molecules in the active site that help facilitate chemical transformations.These molecules are called:

• A)coenzymes.
• B)products.
• C)substrates.
• D)co-substrates.

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Definitions:

Protein Synthesis

The cellular process of building proteins from amino acids based on the instructions coded in DNA and mediated by RNA.

Microfilament

Cytoskeletal element composed of actin subunits; reinforces cell membranes; functions in movement and muscle contraction.

Muscle Contraction

The process by which muscle fibers produce force and tension through the sliding of actin and myosin filaments, powered by ATP.

Nuclear Envelope

The double membrane structure that surrounds the nucleus in eukaryotic cells, controlling the flow of substances in and out of the nucleus.