AP Bioenergetics

Where on an enzyme does the substrate bind?

• active site

• allosteric site

• C-terminus

• N-terminus

Describe the effect on the free(available) energy of doubling the amount of enzyme.

• double the free energy

• half the free energy

• no effect on free energy

• triple the free energy

Which structure is unaffected by denaturation?

• Primary

• Secondary

• Tertiary

• Quaternary

Which environmental conditions can cause denaturation of the enzyme?

• slight increase in temperature

• extreme increase in temperature

• decrease in temperature

• extreme increase in temperature and pH changes

Which of the following will increase the rate of the reaction?

• Increase the product

• Increase the enzyme

• Increase the inhibitor

Tags

NGSS.HS-PS1-5

Describe why an increase in temperature increases the rate of the reaction.

• increase in temperature increases the speed/kinetic energy of particles

• increase in temperature results in increase in substrate available

• increase in temperature activates more enzyme to increase the rate

• increase in temperature allows for a tighter fit in the active site

Tags

NGSS.HS-PS1-5

Describe the difference between competitive and noncompetitive inhibitors.

• noncompetitive binds to active site and competitive binds to other site

• competitive binds to active site and noncompetitive binds to other site

• competitive is irreversible and noncompetitive is reversible binding

• noncompetitive is irreversible and competitive is reversible binding

In order to maintain order and power cellular processes,

• energy input must exceed energy loss

• energy loss must exceed energy input

• energy input equals energy loss

• energy loss equals energy input

Tags

NGSS.HS-LS1-7

What is the process of an endergonic reaction being fueled by an exergonic reaction called?

• second law of thermodynamics

• first law of thermodynamics

• energy coupling

• endergonic/exergonic switch

Where did photosynthesis first evolve?

• prokaryotic organisms

• eukaryotic organisms

• alien organisms

• abiotic processes