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WorksheetsEnzymes
Total questions: 27
Worksheet time: 11mins
What is B?
Active Site
Enzyme
Substrate
Reactent Site
Enzymes are biological catalysts, so they are to bodily reactions what ____________ are to cars.
Tires
Gas Pedals
Steering Wheel
What is the optimum pH for this enzyme?
7.5
11
7
9.5
1
2
3
4
5
What are A and B?
Reactants
Enzyme
Substrate
Products
What happens to the enzyme below 10 degrees and after 61 ish degrees?
It adapts
It gets longer
It denatures
It grows
What type of inhibition is this
Allosteric
Catalytic
Non-competitive
Competitive
What do enzymes do to the activation energy in a reaction?
speeds it up
slows it down
raise it up
lowers it
Why are enzymes important?
They are cool looking
They break down chemicals
They denature polymers
They are required for all chemical reactions in cells.
How does lowering activation energy help a reaction rate?
Speeds it up
Slows it down
It works better
Happens less often
What are enzymes known as and why?
Catalysts: they make reactions happen faster
Reactants: they help slow down the activation energy
Substrate: they denature too often
What binds t an active site to make a reaction?
Substrate(reactants)
Products
Polymers
Monomers
What is it called when an enzyme comes into perfect contact with its substrate?
enzyme-substrate complex
product-substrate complex
polymer-monomer complex
What is it called when only one specific substrate will go into an enzyme?
Specific substrate
Special Reactant
Induced fit
Enzymes (a) the rate reactions can happen
Enzymes (a) activation energy required for reactions to occur
Do enzymes get used up after 1 reaction?
Yes, that's why there are so many enzymes
No, after 1 reaction it gets ready for the next reaction
Which of these affect enzymes?
pH
temperature
light
concentration
air quality
What do enzyme inhibitors do?
Shrinks the mitochondria
Change the substrate
Inhibit or prevent an enzyme from functioning.
What kind of inhibitors are there?
Competitive
Small
Non-competitive
Charged
What are coenzymes & cofactors?
Enzymes that combine with other enzymes
Nonprotein molecules that enhance the action of an enzyme.
Factors that change the appearance of an enzyme
Which of these describe a competitive inhibitor?
Another molecule competes with substrate for active site.
Many poisons like cyanide
A molecule binds to different site on enzyme (called the allosteric site) which warps active site so substrate can’t bind.
Which of these describe a non-competitive inhibitor?
Another molecule competes with substrate for active site.
Many antibiotics, bc they bind to active site of bacterial enzymes
A molecule binds to different site on enzyme (called the allosteric site) which warps active site so substrate can’t bind.
Which of these describe both competitive and non-competitive inhibitors?
Act on enzymes
Many antibiotics
Many poisons
Affect enzyme function
What is this referred to as?
enzyme complex
enzyme substrate complex
inhibition complex
What are vitamins an example of?
monomer of lipids
coenzymes
coefficients
What type of inhibitor is this?
competitive
denaturative
non-competitive
