Lactase Is an Enzyme Composed of a Single Polypeptide That

question 12

Multiple Choice

Lactase is an enzyme composed of a single polypeptide that hydrolyzes the disaccharide lactose to produce monosaccharides. The optimal pH for lactase activity is 6. Transfer of lactase to pH 5 results in a substantial decrease in enzyme activity, likely due to the disruption of

• A) only the primary structure of the enzyme.
• B) the primary and secondary structure of the enzyme.
• C) the secondary and tertiary structure of the enzyme.
• D) the secondary, tertiary, and quaternary structure of the enzyme.

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Definitions:

Psychodynamic

Pertains to a psychological approach that emphasizes unconscious psychological processes (for example, wishes and fears of which we're not fully aware), and contends that childhood experiences are crucial in shaping adult personality.

Social Cognitive

Pertaining to the understanding and application of how thoughts, beliefs, and cognitive processes influence social behavior and learning.

Humanistic

A psychological approach that emphasizes personal worth and the uniqueness of individuals, focusing on self-actualization and personal growth.

Parenting Style

The characterization of different approaches to raising children, including authoritative, authoritarian, permissive, and uninvolved styles.