Inhibitors
Other Enzyme Regulation
Allosteric Enzymes
Electron Transport Chain
Bioenergetics
100

This type of inhibitor binds to the active site.

Competitive inhibitor

100

The availability of this directly affects how fast a reaction will go.

Substrate

100

The name of molecules that regulate enzymes allosterically.

Effector molecules

100

What flows through the electron transport chain?

Electrons

100

Term for the total free energy of a reaction

DeltaG

200

What type of inhibition is typically irreversible?

Noncompetitive inhibition

200

Kinases undergo covalent modification thanks to what functional group?

Phosphate group

200

Allosteric regulation affects maximal catalytic activity and what other variable?

Substrate affinity

200

Complex II does not contribute to this growing factor in the ETC.

Proton gradient

200

This term refers to the heat component of a reaction.

Enthalpy

300

What type of bonding is associated with irreversible inhibition?

Covalent bonding

300

Phosphorylases have the ability to perform their job without this molecule.

ATP

300

Enzymes affected by homotropic effectors can be said to have this property.

Cooperativity

300

This molecule is essential at helping pass electrons through complexes I, II, and III.

Fe-S

300

What is the term for putting an energy-releasing process with an energy-utilizing process?

Coupling

400

You can overcome competitive inhibition by adding more of this.

Substrate

400

In general, regulation of enzymes can affect these two properties.

Velocity and affinity (Vmax, V0, Km)

400

This is the term for the type of heterotropic regulation where a pathway's end product stops the activity of an enzyme.

Feedback inhibition

400

The first electron carrier in complex II.

FADH2

400

Spontaneous reactions involve this value, indicating a favorable process.

-DeltaG

500

What variable does competitive inhibition change?

Km

500

For enzymes occasionally used in cellular processes, cells will change this.

Rate of enzyme synthesis

500

This step is often the point in a pathway where enzymes are turned on and off.

Rate limiting step

500

This molecule is the final acceptor of electrons before passing them to complex IV.

Cytochrome c

500

ATP can be considered this type of molecule, relevant in coupled chemical reactions.

Common intermediate

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