Unit 3 practice ap bio

A catalyst works by

• changing the order of the reaction
• increasing the temperature
• lowering the activation energy
• making the activated complex

Tags

NGSS.HS-PS1-4

Endergonic reactions require:

• an input of energy
• a release of energy
• do not change energy

Tags

NGSS.HS-PS1-4

The active site of an enzyme can:

• bind allosteric regulators.

• bind competitive inhibitors.

• bind non-competitive inhibitors.

• change the Gibbs Free Energy of the reaction.

The break down of larger molecules into small one.

• metabolism

• catabolism

• anabolism

• oxidation

Tags

NGSS.HS-LS1-7

sum of all chemical reactions

• chemosynthesis

• cellular respiration

• metabolism

• photosynthesis

Tags

NGSS.HS-PS1-4

What is being represented by the letter B in the image?

• Substrate

• Enzyme

• reactants

• Product

Succinate dehydrogenase catalyzes the conversion of succinate to fumarate. The reaction is inhibited by malonic acid, which resembles succinate but cannot be acted upon by succinate dehydrogenase. Increasing the ratio of succinate to malonic acid reduces the inhibitory effect of malonic acid. What is malonic acid's role with respect to succinate dehydrogenase?

• It is a competitive inhibitor.
• It is an allosteric regulator.
• It is able to bind to succinate.
• It blocks the binding of fumarate.

The place, other than the active site, where activators and inhibitors bind to an enzyme is called the ________ site.

• competitive
• allosteric
• alterior
• rate

If a process is spontaneous, what can be said about the Gibbs Free Energy of the process?

• ΔG is negative
• ΔG is positive
• ΔG is zero

Tags

NGSS.HS-PS1-4

Increasing the substrate concentration in an enzymatic reaction could overcome which of the following?

• denaturation of the enzyme

• allosteric inhibition

• competitive inhibition

• saturation of the enzyme activity