Which Statement Is NOT True of Organic Molecules

question 136

Multiple Choice

Which statement is NOT true of organic molecules?

• A)RNA is important for protein synthesis.
• B)Cholesterol is part of cell membranes.
• C)Glucose is the most important pentose sugar.
• D)All enzymes are proteins.

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Definitions:

Regulatory Protein

Proteins that play crucial roles in controlling gene expression and mediating cellular activities.

G Protein

A class of proteins that act as molecular switches inside cells, involved in transmitting signals from various stimuli outside a cell to its interior.

Receptor Molecules

Proteins located on the cell surface or within cells that bind specific substances, triggering a biological response.

Up-regulation

refers to the process of increasing the response to a stimulus, often involving an increase in the number of receptors on a cell's surface.