AICE Biology- Enzymes

Enzymes are _____________?

• Fibrous Proteins

• Hormones

• Lipids

• Globular Proteins

An enzyme speeds up a reaction by

• lowering the activation energy.
• raising the activation energy.
• releasing energy.
• absorbing energy.

Tags

NGSS.HS-PS1-4

In a chemical reaction, a reactant binds to an enzyme at a region known as the

• catalyst.
• product.
• substrate.
• active site. 

Which of these is NOT true?

• Enzymes can denature (change shape) when the temperature gets too high.
• Enzymes can only be used once in a chemical reaction. 
• Extreme pH can denature enzymes.
• Enzymes speed up chemical reactions. 

Tags

NGSS.HS-PS1-5

At high temperatures enzyme activity declines because of:

• Denaturation
• Decreased Kinetic Motion
• Increased H-Bonding
• Dissociation of Ionic Compounds

Tags

NGSS.HS-PS1-5

When a molecule can occupy the same active site as the substrate, a situation called __________________ can result

• Competitive lnhibition
• Allosteric Regulation
• Non-Competitive Inhibition
• Feedback Inhibition

What is the term for enzymes that function INSIDE of cells?

• Intercellular

• Extracellular

• Intracellular

• Globular

Where are enzymes synthesized?

• Nucleus

• Golgi Apparatus

• Lysosomes

• Ribosomes

Which of the following is NOT correct of the Michaelis-Menten constant?

• It is a measure of a certain substrate concentration in a reaction

• Higher values mean that the enzyme is more efficient at binding to its substrate

• It can be derived from the Vmax of a reaction

• It is also called the Km

With what 3 letters do enzymes typically end?

• -ose
• -ase
• -ese
• -tic

Tags

NGSS.MS-LS1-7