The Movement of Substances from Higher to Lower Concentration Across

question 49

Multiple Choice

The movement of substances from higher to lower concentration across a semipermeable membrane that must have a specific protein carrier but no energy expenditure is called

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

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Definitions:

Protein Substance

A type of biological molecule composed of one or more chains of amino acids, critical for the structure, function, and regulation of the body's tissues and organs.

Scar

The fibrous tissue that replaces normal skin after an injury or surgical incision as part of the healing process.

BCC

Basal Cell Carcinoma, a common form of skin cancer that begins in the basal cells.

Chronic Skin Condition

A long-lasting or recurrent issue affecting the skin, like eczema or psoriasis.