Each Cone Responds Primarily to a Single Color

question 36

Multiple Choice

Each cone responds primarily to a single color. What kinds of cones are present in the human retina?

• A) Two cones that perceive red or blue light.
• B) Three cones that perceive red, blue, or green light.
• C) Three cones that perceive orange, green, or purple light.
• D) Three cones that perceive red, blue, or yellow light.
• E) Four cones that perceive red, blue, yellow, or green light.

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Definitions:

Fibrinogen

A protein found in plasma that is important for blood clotting.

Plasma Protein

Proteins found in blood plasma that perform various functions including clotting, defense against pathogens, and transport of substances.

Blood Clotting

A complex process involving platelets and clotting factors to prevent excessive bleeding when the vascular system is injured.

Red Blood Cells

Cells in the blood that carry oxygen from the lungs to the rest of the body and return carbon dioxide for exhalation.