Choose the One Most Appropriate Answer for Each

question 2

Multiple Choice

Choose the one most appropriate answer for each.
-active site

• A)amount of energy to start a reaction
• B)coenzyme that carries electrons
• C)attachment of a phosphate group by a high-energy bond
• D)an excess of end-product molecules alters the shape of the first enzyme in the pathway and shuts off that metabolic pathway
• E)part of an enzyme that binds to the substrate
• F)by binding a regulatory molecule, it changes the activity of a metabolic pathway
• G)affects rates of chemical reactions by reducing activation energy
• H)important energy currency in metabolism
• I)enzyme that participates in the neutralization of hydrogen peroxide
• J)a measure of the degree of energy change after a concentrated form of energy has been dispersed

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Definitions:

Standard Error

Standard error measures the precision of a sample mean estimate of a population mean, indicating how much the sample mean is expected to fluctuate from the true population mean.

Population Average

The mean value of a given characteristic within an entire population.

Sample Mean

The average of all observations in a sample, calculated by summing the values and dividing by the sample size.

Critical Value

A point on the scale of the test statistic beyond which we reject the null hypothesis; it marks the boundary for deciding whether an observed test statistic is extreme.