Oxygen Diffuses from the Alveoli to the Blood Because

question 72

Multiple Choice

Oxygen diffuses from the alveoli to the blood because:

• A) PO₂ is higher in the blood.
• B) PO₂ is lower in the blood.
• C) CO₂ is diffusing out of the blood.
• D) more CO₂ is diffusing out of cells into the blood.

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Definitions:

Null and Alternative Hypotheses

The null hypothesis is a statement of no effect or no difference, and the alternative hypothesis is what we aim to support, indicating some effect or difference.

Multiple Regression Model

A statistical methodology that incorporates several explanatory variables to deduce the future value of a dependent variable.

Coefficient

A numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g., in linear regression).

Multiple Determination

A statistical measure represented as R^2, indicating the proportion of variance in the dependent variable that can be predicted from the independent variables.