Enzymes

TRUE OR FALSE:

Enzymes are biological catalysts that speed up a chemical reaction, and in the process are often consumed by the reaction.

• True

• False

Chemical reactions typically involve the input of some energy in order to begin. This is known as the...

• Rate of Reaction

• Transition State

• Activation Energy

• ATP Factor

TRUE OR FALSE:

Enzymes speed up reactions, but do not affect the ΔG (will not affect the spontaneity of the reaction).

• True

• False

The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?

• Enzymes increase the energy of the reactants.
• Enzymes decrease the energy level of the products.
• Enzyme decrease the activation energy of the reaction.
• Enzymes reverse the direction of the reaction.

Tags

NGSS.HS-PS1-4

Enzymes are...

• nucleic acids
• proteins
• lipids
• carbohydrates

Tags

NGSS.MS-LS1-7

Letter D...

• active site
• enzyme
• substrate
• products

Tags

NGSS.MS-LS1-7

Letter C...

• active site
• enzymes
• substrate
• products

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-2

In the diagram, what is letter A? 

• product
• substrate
• enzyme-substrate complex
• active site

How does an enzymes shape relate to its function?

• the shape of the enzyme has no relation to its function

• the enzyme is shaped specially for certain substrates to perform a specific reaction

• the enzyme shape acts as a receptor to certain products

• the enzyme shape can fit into specific substrates to cease a reaction

What is the optimal pH for this enzyme?

• 6

• 10

• 9

• 7