A Structure Found in Prokaryotic Cells,plant Cells,and Animal Cells Is

question 5

Multiple Choice

A structure found in prokaryotic cells,plant cells,and animal cells is a:

• A)Cell wall
• B)Chloroplast
• C)Ribosome
• D)Mitochondria
• E)Cilium

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Definitions:

Excitation Reaction

A physiological response that increases the activity or efficiency of a part of the body or brain.

Receptor Sites

Specific regions on the surface of a cell where molecules such as neurotransmitters can bind to initiate a cellular response.

Agonist

A substance that fully activates the receptor it binds to, producing a full biological response.

Antagonist

In physiology, a muscle that acts in opposition to the action of another muscle, called the agonist; in pharmacology, a substance that inhibits the action of another substance.