Unit 1 Nature of Life and Biochemistry Review new 2024

Front

What is the nature of enzymes in relation to pH?

Back

Enzymes have optimal pH levels at which they function best. Enzymes B and C function in a neutral pH environment.

Front

What determines the specificity of an enzyme for a substrate?

Back

The shape of the enzyme determines its specificity for a certain substrate.

Front

What is an independent variable in an experiment?

Back

The independent variable is the factor that is changed or manipulated in an experiment.

Front

What does it mean to draw conclusions in scientific research?

Back

Drawing conclusions involves determining whether the data supports the original hypothesis.

Front

What type of macromolecules are enzymes like sucrase and lactase?

Back

Sucrase and lactase are proteins.

Front

Define a substrate in the context of enzyme activity.

Back

A substrate is the reactant molecule upon which an enzyme acts.

Front

What is the role of a controlled variable in an experiment?

Back

A controlled variable is a factor that is kept constant to ensure that the results are due to the independent variable.

Front

Explain the term 'dependent variable' in an experiment.

Back

The dependent variable is the factor that is measured or observed in response to changes in the independent variable.

Front

What is the significance of enzyme shape in biochemical reactions?

Back

The shape of an enzyme allows it to bind specifically to its substrate, facilitating the biochemical reaction.

Front

How do temperature changes affect enzyme activity?

Back

Temperature changes can affect enzyme activity by altering the enzyme's shape, potentially denaturing it and reducing its effectiveness.