A Noncompetitive Antagonist

question 4

Multiple Choice

A noncompetitive antagonist

• A)binds to the same receptor site as the binding site for the agonist.
• B)causes a shift to the right in the dose-response curve.
• C)enhances the maximal response of the agonist.
• D)reduces the maximal response of the agonist.

---

Definitions:

Pistil

The female reproductive organ of a flower; consists of either a single carpel or two or more fused carpels. See carpel.

Structure Labeled

In microscopy, the identification and tagging of specific cellular or molecular components with labels or markers for study.

Anther

The part of the stamen in flowers that produces microspores and, ultimately, pollen grains.

Endosperm

A nutritive tissue in seeds of most flowering plants, providing sustenance to the developing embryo.