What Is the Primary Method by Which Materials Such as O₂

question 204

Multiple Choice

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

Scaffold

A framework that offers children temporary support as they develop higher levels of thinking.

Schema

A mental structure of preconceived ideas, a framework representing some aspect of the world, or a system of organizing and perceiving new information.

Critical Period

A specific time in development during which the presence or absence of certain experiences has a profound influence on the formation of abilities or characteristics.

Theory of Mind

The ability to attribute mental states—beliefs, intents, desires, emotions—to oneself and others, and to understand that others have beliefs and perspectives different from one's own.