Which Two Structures of the Eye Are Involved in Bending

question 129

Multiple Choice

Which two structures of the eye are involved in bending light rays to focus them on the retina?

• A)lens and posterior cavity
• B)cornea and retina
• C)pupil and retina
• D)cornea and lens

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Definitions:

Xanthophylls

A class of oxygen-containing carotenoid pigments responsible for many of the yellow, orange, and red hues in plants.

Alginic Acid

A polysaccharide distributed widely in the cell walls of brown algae, used as a food thickener and pharmaceutical ingredient.

Brown Algae

A large group of mostly marine, multicellular algae, including many seaweeds commonly found in colder waters.

Emulsifying Agent

A substance that helps to mix two immiscible liquids, such as oil and water, to form a stable mixture called an emulsion.