Unit 3 Review

Where on an enzyme does the substrate bind?

• active site

• allosteric site

• C-terminus

• N-terminus

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 product

• increase substrate

• increase inhibitor

• increase enzyme

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 activates more enzyme to increase the rate

• increase in temperature results in increase in substrate available

• 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

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

• second law of thermodynamics

• energy coupling

• first law of thermodynamics

• endergonic/exergonic switch

Where did photosynthesis first evolve?

• prokaryotic organisms

• alien organisms

• eukaryotic organisms

• abiotic processes

What are the products of the light-dependent reactions of photosynthesis?

• ATP & NADH

• CO₂ & H₂O

• NADPH & ATP

• Organic Compounds & O₂

What is the function of the electron transport chain between Photosystem II and Photosystem I?

• establish electrochemical gradient of protons

• to funnel electrons into photosystem I for the Calvin cycle

• transport electrons to oxygen to make water

• to synthesize ATP using ATP synthase