Absorbance at Various PH Levels

question 66

Multiple Choice

Absorbance at Various pH Levels

The table represents the results of an experiment where the effects of pH buffers on an enzyme found in saliva (amylase) were studied. A spectrophotometer set at 500 nm was used to measure absorbance at the various pH levels every 20 seconds for 2 minutes. The higher absorbance values would indicate greater enzyme activity. All experiments were conducted at the same temperature.
Which statement correctly identifies the result that the optimum pH for amylase function is 7?

• A) The pH with the lowest absorbance values would indicate the optimum pH for amylase since this pH does not affect the structure or function of the protein.
• B) The pH with the highest absorbance values would indicate the optimum pH for amylase since this pH does not affect the structure or function of the protein.
• C) At pH 9, the enzyme is denatured and will lose its function, but not its structure.
• D) At pH 4, the structure of the enzyme will be altered, and the enzyme would not be able to catalyze the reaction.

Recognize the technological advancements and tool traditions associated with early humans.

Grasp the importance and use of fire by early humans.

Understand the significance of physical and genetic evidence in tracing human evolution.

Comprehend the development and impact of cultural practices among early humans.

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Definitions:

Have-nots

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Structural-functional Theory

A viewpoint in sociology that considers society as an intricate system in which its components cooperate to foster unity and steadiness.

Instrumental Role

A function or position assumed by an individual within a social setup focused on achieving practical goals and fulfilling needs.

Expressive Role

The role associated with emotional support, nurturing, and maintaining relationships within a family or social group.