Bio Ost

Quiz
•
Science
•
8th Grade
•
Hard
+1
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Most chemical reactions in the body rely on enzymes. Why are enzymes are necessary for many cellular reactions?
The reactions are too slow to meet the needs of the cell if enzymes are missing
The reactions take up too much space in the cell if enzymes are missing
Enzymes change reactants from solid to liquid during the reactions.
Enzymes supply the oxygen necessary for the reactions.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these two statements?
The body is kept relatively warm to prevent too much enzyme action.
The body needs to be warm to prevent hypothermia.
Enzymes function best at a specific temperature.
There is no connection between the two statements.
Tags
NGSS.HS-LS1-3
3.
MULTIPLE CHOICE QUESTION
1 min • 12 pts
Any substance that is acted upon by an enzyme is called a(n)?
Coenzyme
Substrate
Vitamin
Polypeptide
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Where do substrates bind on an enzyme?
voltage-gated channels
surface receptor
calcium channels
active site
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An activor or inhibitor binding place that is not the active site, causing the enzyme to change conformation (shape) is an example of ...
competative inhibition
allosteric control
optimum conditions
induced fit
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the primary function of enzymes in biological systems?
To speed up chemical reactions
To provide energy for reactions
To act as a reactant in reactions
To change the pH of the environment
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following best describes the role of enzymes in the human digestive system?
They break down food into smaller molecules
They absorb nutrients into the bloodstream
They transport food through the digestive tract
They protect the stomach lining from acid
Tags
NGSS.MS-LS1-7
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