Section 1.3 Review
Extracting Energy from Biomass
Multiple Choice
For each question below, select the best answer.
1. Which process requires oxygen?
a. acid precipitation
b. cellular respiration
c. eutrophication
d. fermentation
e. photosynthesis
2. From which substance do organisms get energy
through cellular respiration?
a. carbon dioxide
b. chlorophyll
c. glucose
d. oxygen
e. water
3. Which chemical equation correctly illustrates the
process of cellular respiration?
a. 6CO2 + 6O2 C6H12O6 + 6H2 O + energy
b. C6H12O6 + energy 6CO2 + 6O2 + 6H2O
c. 6H2 O + 6CO2 + energy 6O2 + C6 H12O6
d. C6H12O6 + 6O2 6CO2 + 6H2 O + energy
e. C6H12O6 + 6CO2 6O2 + 6H2O + energy
6. Which substance is the most acidic?
a. ammonia, pH 12
b. baking soda, pH 8.5
c. pure water, pH 7
d. rain water, pH 5.5
e. vinegar, pH 3
7. The Kyoto Protocol is an agreement in which
signing countries work to reduce
a. acid precipitation
b. eutrophication
c. greenhouse gas emissions
d. recycling efforts
e. sulfur dioxide emissions
8. The graph below shows the amount of sulfur
dioxide emitted by Canada and Ontario between
1990 and 2005. What is the lowest amount of
sulfur dioxide produced by Ontario during that
15-year period?
4. Which gas is a greenhouse gas?
a. argon
b. carbon dioxide
c. hydrogen
d. nitrogen
e. oxygen
5. Which substance is a gaseous fuel that can be
harvested from a landfill?
a. biomass
b. carbon dioxide
c. coal
d. methane
e. petroleum
10 MHR • Unit 1 Sustainable Ecosystems 978-0-07-031851-9
a.
b.
c.
d.
e.
3100 kt
2500 kt
2400 kt
1100 kt
500 kt
Section 1.3 Review
Extracting Energy from Biomass
Written Answer
Answer the following questions in your notebook.
9. How do greenhouse gases in Earth’s atmosphere heat the planet?
10. Use a Venn diagram to compare and contrast fossil fuels and cellular respiration.
11. What process has caused the enhanced greenhouse effect?
12. Use data from the graph below to describe how the concentration of carbon dioxide in
the atmosphere has changed since before the Industrial Revolution began.
13. How can recycling help reduce carbon dioxide emissions?
14. Summarize the process that forms acid precipitation.
15. How do bacteria in a landfill generate methane?
16. Identify one effect of acid precipitation on a terrestrial ecosystem and one effect of acid
precipitation on an aquatic ecosystem.
MHR • Unit 1 Sustainable Ecosystems 11