Rside A&P12 Enzyme Function

What kind of reaction does this graph represent?

• exergonic

• endergonic

Tags

NGSS.HS-PS1-4

When an enzyme is used for this reaction, how will the graph be different?

• Reactant free energy will be lower

• Product free energy will be lower

• Activation energy will be lower

• All three will be lower

Tags

NGSS.HS-PS1-4

What parameter causes this change in reaction rate for an enzyme-facilitated reaction?

• temperature

• pH

• [enzyme]

• [substrate]

Which point on the graph shows where the enzyme denatures?

• A

• B

• C

• Not shown on this graph

Tags

NGSS.HS-PS1-5

Why does the curve flatten out?

• enzyme gets used up

• available enzyme is working at full capacity

• not enough substrate is available

• the reaction rate slowed down

Enzyme concentration is the main factor that limits the rate of biological reactions.

• true

• false

What adjustments could be made to increase the rate of reaction again?

• moderately increase temperature (not over 40^o)

• drastically lower pH

• add more enzyme

• add a competitive inhibitor

Tags

NGSS.HS-PS1-5

This diagram models the action of an enzyme.

What is represented by 1?

• apoenzyme

• coenzyme

• substrate

• product

This diagram models the action of an enzyme.

What is represented by 4?

• apoenzyme

• coenzyme

• substrate

• product

This diagram models the action of an enzyme.

What is represented by 2?

• apoenzyme

• coenzyme

• substrate

• product