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- 1. Multiple Choice
What type of enzyme is shown in the picture?
Anabolic
Catabolic
There's no way to tell
- 2. Multiple Choice
When an enzyme tightens around a substrate, this is called:
An awkward hug
Induced fit
Competitive Inhibition
Non competitive Inhibition
- 3. Multiple Choice
As temperature increases, the rate of reaction for enzymes will generally ______.
increase
decrease
not be affected
- 4. Multiple Choice
Fill in the blank: Enzymes act as __________ which speed up chemical reactions.
Competitors
Co enzymes
Catalysts
Tiny sumo wrestlers
- 5. Multiple Choice
What's going on in this picture?
The enzyme is taking the red substrate and turning it blue
The enzyme's active site is blocked by a competitive inhibitor
The enzyme can't function if too many substrates are trying to bind
This is an example of an anabolic enzyme reaction
- 6. Multiple Choice
In non-competitive inhibition, a molecule will ______.
bind in the enzyme's active site
bind in a separate site on the enzyme besides the active site
will not bind to the enzyme
- 7. Multiple Choice
If a non-competitive inhibitor binds to an enzyme, what happens to the active site? Choose all that apply.
The active site changes shape and no longer accepts substrates
The active site may become blocked and no longer accepts substrates
The active site accepts substrates at a faster rate
The active site will then accept a competitive inhibitor and shut down
- 8. Multiple Choice
How do enzymes speed up chemical reactions. Select all that apply.
They heat up molecules in their vicinity which makes them react faster
They lower activation energy (energy required to start a reaction)
They do a sort of molecular hug and weaken chemical bonds
They sing love songs to lure substrates into their active site
- 9. Multiple Choice
Which of the following would increase an enzyme's reaction rate the MOST?
Putting an enzyme and substrate solution in ice
Putting an enzyme and substrate solution in VERY hot water
Stirring an enzyme and substrate solution
- 10. Multiple Choice
If an enzyme is placed in a strong acid (low pH), which of the following is likely to happen?
It will increase the rate of reaction of the enzyme
It will cause the enzyme to denature and drastically decrease the rate of reaction
pH doesn't effect enzyme rate of reaction. It would continue working at its normal pace
- 11. Multiple Choice
Which of the following is likely the name of an enzyme?
Lactose
Fructose
Sucrase
Galactose
- 12. Multiple Choice
Enzymes are a type of ________ protein, which means they are __________.
fibrous; hydrophobic
fibrous; hydrophilic
globular; hydrophobic
globular; hydrophilic
- 13. Multiple Choice
An electron carrier molecule (like NADH) is called a(n) ________, because it assists the enzyme in turning substrates into products
Co-enzyme
Cofactor
Inhibitor
- 14. Multiple Choice
An inorganic molecule that is needed to complete an enzyme's structure and therefore its function is called a(n) ______
Cofactor
Co-enzyme
Inhibitor
- 15. Multiple Choice
When an enzyme loses it's 3 dimensional shape, it becomes _____.
denatured
free at last
a super enzyme
- 16. Multiple Choice
Which enzyme would likely break down milk sugar?
Sucrase
Lactase
Lactose
Fructose
- 17. Multiple Choice
A catabolic enzyme would rely on using a _________ reaction in order to _________ substrate
Dehydration; build a larger
Hydrolysis; build a larger
Dehydration; break down the
Hydrolysis; break down the
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