Which of the Following Is True of Enzymes

question 58

Multiple Choice

Which of the following is true of enzymes?

• A) Nonprotein cofactors alter the substrate specificity of enzymes.
• B) Enzyme function is increased if the 3-D structure or conformation of an enzyme is altered.
• C) Enzyme function is independent of physical and chemical environmental factors such as pH and temperature.
• D) Enzymes increase the rate of chemical reaction by lowering activation energy barriers.
• E) Enzymes increase the rate of chemical reaction by providing activation energy to the substrate.

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Definitions:

Significant Figures

The number of digits in a number that are considered to contribute to the accuracy of that number, reflecting the precision of a measurement.

Significant Figures

The digits in a number that are known with certainty plus the first digit that is uncertain, relevant in scientific measurements.

Length Measurements

The determination of the extent of something from end to end, typically in units such as meters, inches, or miles.

Significant Figures

The number of digits in a value, counting from the first non-zero number, that are used to express the precision of measurements and calculations.