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1st Semester Final Exam ReviewBiomolecules and Enzymes-Part 4
I can:
…describe the structure of carbohydrates, lipids, proteins, and nucleic acids
…explain the function of carbohydrates, lipids, proteins, and nucleic acids
…describe enzymes and explain how enzymes affect reaction rates.
Vocabulary:
Biomolecules:
Carbohydrate:
Enzyme:
Lipid:
Nucleic Acid:
Protein:
Biomolecules Practice Questions:
1. There are four categories of organic molecules which form the basis of all living
things. List all four, give the molecule it is built from and give examples of each.
Name the
Biomolecule
Molecule that
builds it
List two
examples
2. All of the biomolecules are based on which element?
a. Nitrogen
b. Carbon
c. Hydrogen
d. Oxygen
3. What are the building blocks of each of the four classes of biomolecules?
4. Polymers are important structures for biomolecules. Explain what they are and
how they build these molecules.
Created by D. Burns, KHS © KISD
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1st Semester Final Exam ReviewBiomolecules and Enzymes-Part 4
5. Differentiate between monosaccharide and polysaccharide molecules.
6. What are the three types of carbohydrates?
7. What is cellulose used for?
8. Why would an athlete have a big pasta dinner the night before a race?
9. What is a saturated fatty acid?
10. Why should we avoid eating saturated fats?
11. Explain why lipids do not dissolve in water.
12. How would you test for lipids, and what is a positive result?
13. What are some of the functions of proteins?
14. What determines the type of protein?
15. Explain what DNA does in the cell.
Created by D. Burns, KHS © KISD
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1st Semester Final Exam ReviewBiomolecules and Enzymes-Part 4
Biomolecules Crossword
Enzymes Vocabulary:
Substrate:
Product:
Active site:
Lock and Key:
Reactant:
Activation energy:
Chemical reaction:
Catalyst:
Created by D. Burns, KHS © KISD
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1st Semester Final Exam ReviewBiomolecules and Enzymes-Part 4
Enzyme Practice Questions:
1. Which statement about enzymes is not correct?
A. Enzymes are composed of amino acid chains.
B. Enzymes form a temporary association with a reactant.
C. Enzymes are destroyed when they are used.
D. Enzymes are specific because of their shape.
2. Enzymes only work with specific substrates because each substrate—
A. has a specific activation site for enzyme attachment
B. can only use a specific ionic bond with the enzyme.
C. destroys its specific enzyme.
D. interferes with other substrates around it.
Enzyme Drawing: Draw a picture that shows how an enzyme catalyzes its substrate.
Created by D. Burns, KHS © KISD
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1st Semester Final Exam ReviewBiomolecules and Enzymes-Part 4
Double Bubble Thinking Map: What are the similarities and differences between
enzymes and catalysts? Feel free to add more bubbles if you need them.
How an enzyme is different
from a catalyst.
Enzymes
How
they
are the
same
Catalysts
How a catalyst is
different from an enzyme
Created by D. Burns, KHS © KISD
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