The Larger the Dissociation Constant K_D is, the Smaller Will

question 28

Multiple Choice

The larger the dissociation constant K_D is, the smaller will be

• A) the rate at which a ligand dissociates from its receptors.
• B) the affinity of the receptor for its ligand.
• C) the effect of a ligand on a signal transduction pathway.
• D) the number of ligand molecules needed to stimulate a signal transduction pathway.
• E) the number of cell surface receptors that bind a ligand.

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Definitions:

Ocular Lens

The lens within a microscope or camera that is closest to the eye when someone looks through the device.

Objective Lens

The lens in a microscope that is closest to the specimen, magnifying the image.

Mechanical Stage Control

A feature on microscopes that allows for precise movement of the specimen slide in the horizontal plane, facilitating detailed examination.

Fine Adjustment Knob

A part of a microscope used to make small adjustments in focus, enhancing the clarity of the image.