Enzymes

What is the basic building block of enzymes?

• Lipids

• Amino acids

• Carbohydrates

• Nucleic acids

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DOK Level 1: Recall

Which part of the enzyme is responsible for its catalytic activity?

• Substrate

• Active site

• Inhibitor

• Coenzyme

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DOK Level 1: Recall

What is the primary function of enzymes in biological systems?

• To store genetic information

• To provide structural support

• To speed up chemical reactions

• To transport oxygen

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DOK Level 1: Recall

Which factor does NOT affect enzyme activity?

• Temperature

• pH

• Substrate concentration

• Color of the enzyme

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DOK Level 1: Recall

What happens to an enzyme when it is denatured?

• It becomes more active

• It loses its shape and function

• It becomes a substrate

• It doubles its activity

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DOK Level 1: Recall

Which of the following is a common model used to describe enzyme-substrate interaction?

• Lock and key model

• Fluid mosaic model

• Bohr model

• Rutherford model

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DOK Level 1: Recall

What is the effect of a competitive inhibitor on enzyme activity?

• It increases enzyme activity

• It decreases enzyme activity by blocking the active site

• It permanently deactivates the enzyme

• It has no effect on enzyme activity

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DOK Level 1: Recall

Which term describes the minimum energy required to start a chemical reaction?

• Activation energy

• Kinetic energy

• Potential energy

• Thermal energy

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DOK Level 1: Recall

What is the role of a coenzyme in enzyme activity?

• It acts as a substrate

• It assists the enzyme in catalyzing reactions

• It inhibits enzyme activity

• It changes the enzyme's shape

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DOK Level 1: Recall

What is the term for the specific region of an enzyme where a substrate binds?

• Active site

• Binding site

• Allosteric site

• Receptor site