Unit 1 Review Guide
1. Describe what it means to be alive
using all seven criteria. Hint:
requirements of life.
6. Write a sentence describing the
relationship between the following
words: monomer, polymer, protein and
amino acids.
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7. Draw out a properly labeled endergonic
reaction.
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2. What are the components of the cell
theory?
3. What goes on inside cells that allow
them to maintain homeostasis?
8. Do the reactants (substrates) or
products have more energy in an
exergonic reaction?
4. Describe what the Miller- Urey
Experiment tested and explain the results.
9. What three things affect the reaction
rate when enzymes are involved?
5. What theory does the Miller- Urey
Experiment support?
10. What does a catalyst do?
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11. Draw out a properly labeled exergonic
reaction that occurs, including an enzyme
and not an enzyme. What is the
difference?
15. Why do enzymes lower the activation
energy of a chemical reaction?
16. Using the graph below, what is the
optimal temperature for this enzyme?
12. Draw out the structure of an amino
acid.
17. Would enzymes in bacteria found
inside your gut, a very acidic
environment, work best at a pH level of 5
or 7? Explain your reasoning.
13. What type of reaction allows one
amino acid to bond with another amino
acid?
18. What causes proteins to fold?
14. Draw what happens when two amino
acids bond.
19. Why are enzymes believed to follow a
“Lock and Key” Model?
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20. What do enzymes do to the reaction
rate?
21. You add 5 drops of catalase to an
action chamber containing 10 mL H2O2.
Will there be more, less or the same
amount of O2 produced as 3 drops of
catalase to 10 mL H2O2. Explain your
reasoning.
21. You add 5 drops of catalase to an
action chamber containing 10 mL H2O2.
Will there be more, less or the same
amount of O2 produced as 5 drops of
catalase to 20 mL H2O2. Explain your
reasoning.
22. Will two positively charged amino
acids take up more or less space
compared to one positively charged
amino acid and one negatively charged
amino acid? Explain your reasoning.
23. Why do proteins fold?
24. What type of reaction occurs when
two amino acids are broken apart? What
molecule is needed to break apart two
amino acids?
22. Circle which type of bonds make up
biomolecules such as amino acids:
ionic hydrogen
covalent
What is your reasoning?
23. What does a spontaneous reaction
mean?
24. Are exergonic or endergonic reactions
spontaneous? Why?
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