
Enzyme Function and Activity Quiz
Interactive Video
•
Biology
•
9th - 10th Grade
•
Practice Problem
•
Hard
Evelyn Hayes
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where does protein digestion begin in the human alimentary canal?
Large intestine
Mouth
Small intestine
Stomach
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role do enzymes play in chemical reactions?
They increase the activation energy
They change the shape of substrates
They act as inhibitors
They act as biological catalysts
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the lock and key mechanism in enzyme activity?
Enzymes can bind to any substrate
Enzymes are permanently altered after reactions
Enzymes and substrates have complementary shapes
Enzymes change shape to fit substrates
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is lactose not absorbed in the small intestine of lactose-intolerant individuals?
Lactose is already broken down in the stomach
Lactose is absorbed in the large intestine
The enzyme to break down lactose is absent
Lactose is too small to be absorbed
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of lactose not being broken down in lactose-intolerant individuals?
No effect
Improved digestion
Diarrhea and gas
Increased energy levels
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to enzymes at temperatures above 60 degrees Celsius?
They are denatured
They increase reaction rates
They become more active
They change substrates
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does an increase in temperature affect enzyme activity?
It increases enzyme activity
It reduces substrate collisions
It decreases kinetic energy
It denatures all enzymes
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