Chemical Buffer Systems

question 82

Multiple Choice

Chemical buffer systems

• A) respond in one to three minutes to changes in hydrogen ion concentration
• B) stimulate the respiratory center when acidosis is present
• C) promote H⁺ excretion by the kidneys when acidosis is present
• D) are the most powerful mechanism available for regulating changes in [H⁺] within the body
• E) buffers changes in acid or base levels

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Definitions:

Effect Size

A quantitative measure of the magnitude of the difference between groups or the strength of the relationship between variables in a statistical analysis.

Null Hypothesis

A statement positing that there is no significant difference or effect, often the initial assumption in hypothesis testing.

Type II Error

The error made when a test fails to reject a false null hypothesis, often denoted by beta (β).

Type I Error

The error that occurs when a true null hypothesis is incorrectly rejected, falsely indicating a statistically significant effect.