What Is the Primary Method by Which Materials Such as O₂,CO₂,and

question 116

Multiple Choice

What is the primary method by which materials such as O₂,CO₂,and nutrients are exchanged between the blood and surrounding tissues?

• A) passive diffusion of substances across the capillary wall down their concentration gradients
• B) active transport of materials across the capillary wall
• C) osmotic pressure drawing water and solutes out of the capillary and bringing these dissolved nutrients into contact with the tissue cells
• D) processes of ultrafiltration and reabsorption

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Definitions:

Epithelial

Pertaining to the epithelium, a layer of cells covering the body surfaces, lining body cavities and forming many glands.

Connective

Often refers to connective tissue in biology, which supports, binds together, or separates other tissues or organs of the body.

Mucus

A slippery secretion produced by, and covering, mucous membranes primarily in the respiratory, digestive, and reproductive systems, aiding in protection and lubrication.

Muscle

Muscle is a tissue in animals that contracts to produce movement, consisting of smooth, skeletal, and cardiac types.