CFA: Enzymes
Quiz
•
Biology
•
10th Grade
•
Practice Problem
•
Hard
Standards-aligned
KRISTEN BEASLEY
Used 4+ times
FREE Resource
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11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Salivary amylase is an enzyme in the human body that digests carbohydrates from food. When food mixed with saliva enters the stomach, the action of salivary amylase slows dramatically. Which causes salivary amylase enzyme to stop digesting food?
The pH of the stomach is lower than in the mouth.
The concentration of food decreases in the stomach.
The temperature of the food increases in the stomach.
The food is mixed more in the mouth than in the stomach
Tags
BIO1.LS1.5
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
What does letter Z represent in this image?
enzyme
enzyme-product complex
substrate
enzyme-substrate complex
product(s )
Tags
BIO1.LS1.5
3.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
How does the addition of heat affect the ability of an enzyme to help the sugar molecules form a bond?
Heat allows the sugar molecules to bond more quickly.
Heat provides places on the enzyme for other molecules to bond
Heat changes the enzyme so that the sugar molecules can no longer bond
Heat changes the chemical composition of the sugar molecules so they no longer need the enzyme
Tags
BIO1.LS1.5
4.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Humans can use starch as an energy source but are unable to use cellulose for energy. Which of the following best explains the difference in how these molecules are processed in the body?
Humans can chew starch but cannot chew cellulose
Humans dissolve starch in blood plasma but cannot dissolve cellulose
Humans make an enzyme to digest starch but cannot absorb cellulose
Human muscle cells can absorb starch but cannot absorb cellulose
Tags
BIO1.LS1.5
5.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
Which of the following are characteristics of an enzyme?
Binds with any type of substrate
Is reusable
Is a catalyst for a biochemical reaction
Increases activation energy
Is affected by temperature and pH
Tags
BIO1.LS1.5
6.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Which statement describes how a change in pH affects the activity of an enzyme?
It alters the shape of the enzyme
It alters the density of the enzyme
It alters the solubility of the enzyme
It alters the concentration of the enzyme
Tags
BIO1.LS1.5
7.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
The graph shows the activity of an enzyme that causes spoiling and discoloration of a fruit at different temperatures.
What temperature will prevent spoiling and discoloration of the fruit?
90 degrees
80 degrees
60 degrees
40 degrees
Tags
BIO1.LS1.5
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