Enzymes

Enzymes

Multiple Select

Most enzymes

• are proteins in the tertiary and quaternary structure.

• act as catalysts to accelerate a reaction

• are not permanently changed during the catalyst process

• are permanently changed during the catalyst process

Multiple Choice

Which of the following is an enzyme?

• sucrose

• lactose

• maltose

• lactase

Multiple Choice

Enzyme lower

• articulation energy

• total energy use

• activation energy

• bonds

Multiple Choice

What is the substance called that enzymes act on?

• activation

• substrate

• reaction

• activity

Multiple Choice

What is the restricted region on an enzyme molecule which binds to the substrate?

• active site

• activity

• enzyme

• substrate

Multiple Choice

An induced fit is when there is a change in the shape of an enzyme's active site that has been induced by the substrate.

• False

• True

Multiple Choice

Which is NOT an environmental condition that can cause an enzyme to denature?

• extreme temperature

• pH

• induced fit

• Ionic concentration

Multiple Choice

What are sometimes needed for proper enzymatic activity?

• location

• shape

• organic substances

• inorganic substances and vitamins

Multiple Choice

Competitive inhibitors are

• chemicals that resemble an enzyme's normal substrate and compete with it for the active site

• chemicals that mimic an enzyme's normal substrate but don't affect the active site

• chemicals that don't resemble an enzyme's normal substrate but compete with it for the active site

• chemicals that don't resemble an enzyme's normal substrate and also do not compete with it for the active site

Multiple Choice

Inhibitors that do not enter the active site are called

• lazy inhibitors

• outhibitors

• noncompetitive inhibitors

• competitive inhibitors

Poll

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