Which Definition Describes a Receptor

question 20

Multiple Choice

Which definition describes a receptor?

• A)A cell component to which a drug binds in a dose-dependent manner
• B)Present only in the drug's target tissue
• C)Required to drug action
• D)Analogous to the "key" in the lock-and-key model of drug-receptor interaction

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Definitions:

Ribosome

A cellular organelle that functions as the site of protein synthesis, reading RNA sequences to assemble amino acids into proteins.

Golgi Body

Membrane-enclosed organelle that modifies proteins and lipids, then sorts the finished products into vesicles. Shaped like a stack of pancakes.

Photosynthesis

A process used by plants and other organisms to convert light energy, usually from the sun, into chemical energy that can be later released to fuel the organism's activities.

Protist Cells

Eukaryotic organisms that are neither plants, animals, nor fungi, often unicellular, such as amoebas, algae, and protozoa.