The Movement of Molecules from an Area of High Concentration

question 21

Multiple Choice

The movement of molecules from an area of high concentration to an area of lower concentration is called

• A)facilitated diffusion.
• B)diffusion.
• C)active transport.
• D)osmosis.
• E)endocytosis.

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Definitions:

Iritis

Irritation of the iris, the part of the eye that has color, resulting in discomfort, sensitivity to light, and issues with sight.

Systemic Absorption

The process by which substances enter the bloodstream and spread throughout the body, which may occur through the skin, lungs, or digestive system.

Topical Medication

Medicines applied directly to a particular area of the skin or mucous membrane to treat localized conditions or for skin care.

Visual Acuity

The sharpness or clarity of vision, often measured by the ability to discern letters or numbers at a standardized distance.