EnzymeQuiz Flashcards
T or F, Enzymes are alive.
False
T or F, Enzymes are found in all living things.
True
T or F, Denatured Enzymes do not work.
True
T or F, a small change in temperature will denature an enzyme.
False (unless this change brings the temp outside the range of function temperatures for the enzyme)
List the stages of an Enzyme in action:
- substrate entering the active sight
- Enzyme-Substrate Complex, enzyme binds to substrate
- Enzyme-Product Complez, enzyme is acting on the substrate structure
- products leave the enzyme/active site
T or F, enzymes can build up or break down substrates that bind to it.
True
What do the names of enzymes often end in?
-ase
Why do we call enzymes a catalyst?
they can be used multiple times
Which chemicals help an enzyme build up or break down substrates into products?
Cofactors (inorganic: Fe, Zn) and Coenzymes (organic: vitamins)
If the environment changes to be out of an enzyme’s ideal temperature or pH range, what may occur?
the enzyme may denature
What happens when an enzyme denatures?
- its shape will distort
- it can no longer bind to the substrate
Why are medical researchers interested in enzymes?
enzymes regulate many body processes
Enzymes are the result of:
the secondary and tertiary protein folding
T or F, an enzyme denatures when the primary structure of the protein is disrupted.
False! An enzyme denatures when its pH or temperature goes out of the optimal range. The shape would be altered with a primary structure change but it would not be “denatured”.
T or F, only one substrate can occupy the active site at a time.
True
Allosteric Inhibition show what kind of inhibitor?
Non-competitive
A hydrophobic substrate interacts with ________ side chains:
non-polar!
Can an enzyme be used up by a reaction?
No.
T or F, during competitive inhibition, the invading inhibitor posseses similar qualities to the intended substrate:
True
