In the Diagram, Which Are Regulatory Proteins

question 42

Multiple Choice

In the diagram, which are regulatory proteins?

• A) B
• B) C
• C) E
• D) All of these choices
• E) None of these choices

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Definitions:

Colored Part

This refers to the iris; it is the pigmented part of the eye responsible for controlling the diameter and size of the pupil and thus the amount of light reaching the retina.

Iris

The colored part of the eye surrounding the pupil, responsible for controlling the diameter and size of the pupil.

Pupil

The black circular opening in the center of the iris of the eye, through which light enters the eye.

Lens

A curved piece of glass, plastic, or other transparent materials that refracts light rays, focusing them to form an image or aid in vision correction.