Kinases and Phosphatases Are Essential in the Cell Because They

question 1

Multiple Choice

Kinases and phosphatases are essential in the cell because they

• A)sense short poly A tails in mRNA as a signal to degrade the mRNA.
• B)are enzymes that destroy damaged proteins.
• C)help turn proteins "on and off" through changes in phosphorylation status.
• D)destroy second messengers, thereby turning off a signal transduction pathway.
• E)all of the above

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Definitions:

Dehydration Reaction

A chemical reaction that involves the removal of water (H2O) from a single reactant, commonly leading to the formation of a double bond in organic compounds.

Predict

To forecast or estimate the outcome of a particular process or reaction based on known data or theories.

Nitroglycerine

A highly volatile and explosive chemical compound used in dynamite and in medicinal preparations as a vasodilator.

Glycerine

A simple polyol compound used in foods, pharmaceuticals, and cosmetics for its moisturizing and solvent properties.