Name
Date
Class
Cellular Respiration
Inquiry Warm-Up, Cellular Respiration
In the Inquiry Warm-Up, you investigated one of the products of cellular respiration by
observing the actions of yeast. Using what you learned from that activity, answer the
questions below.
1. INFER What do you think produced the carbon dioxide in test tube 2?
2. INFER Based on the results you observed in test tubes 1 and 2, what
do you think boiling does to yeast? Why do you think so?
3. INFER Why do you think a pinch of sugar was added to each test
tube?
4. PREDICT How do you think the results of the experiment would have
been different if no sugar had been added to the test tubes?
Name
Date
Class
Cellular Respiration
What Happens During Cellular Respiration?
1a.
INTERPRET DIAGRAMS Look at Figure 2 on page 52 of your textbook.
How does Stage 2 of cellular respiration benefit a cell?
b. RELATE CAUSE AND EFFECT Why does cellular respiration add carbon
dioxide to the atmosphere, but photosynthesis does not?
I get it! Now I know that during cellular respiration, cells ___________________________________
I need extra help with _____________________________________________________________
What Happens During Fermentation?
2a.
DEVELOP HYPOTHESES When a race ends, why do you think runners
continue to breathe fast and deeply for a few minutes?
b. ANSWER
How do living things get energy?
I get it! Now I know fermentation is a way for cells to _____________________________________
I need extra help with _____________________________________________________________
Name
Date
Class
Cellular Respiration
On a separate sheet of paper, compare and contrast the processes of cellular respiration
and fermentation.
Name
Date
Cellular Respiration
Understanding Main Ideas
Fill in the blanks in the table below.
Cellular Respiration
Raw Materials
Products
Glucose
1.
2.
Water
3.
Answer the following questions in the spaces provided.
4. Where in the cell does the first stage of cellular respiration take
place?
5. Where in the cell does the second stage of cellular respiration take
place?
6. Which type of fermentation occurs in yeast?
7. Which type of fermentation sometimes occurs in human muscle cells?
Building Vocabulary
Answer the following questions on a separate sheet of paper.
8. Why are cellular respiration and photosynthesis opposite processes?
9. In what ways are cellular respiration and fermentation alike? In what
ways are they different?
Class
Name
Date
Class
Cellular Respiration
Read the passage. Then answer the questions that follow on a separate sheet of paper.
History of Fermentation
In 1854, the French chemist Louis Pasteur determined that fermentation is caused by yeast. His work
was influenced by the earlier work of Theodor Schwann, the German scientist who helped develop the
cell theory. Around 1840, Schwann concluded that fermentation is the result of processes that occur in
living things. In 1907, a German chemist named Eduard Buchner received the Nobel prize for showing
that enzymes in yeast cells cause fermentation. About two decades later, two other scientists determined
exactly how enzymes cause fermentation. Their names are Arthur Harden and Hans Euler-Chelpin,
and they won the Nobel prize for their work in 1929. By the 1940s, technology was developed to use
fermentation to produce antibiotics.
Fermentation is a very useful process. Today it is used to produce industrial chemicals, medicines such
as antibiotics, and alcoholic beverages, as well as to make bread rise and to preserve many types of
food. Some of these uses have been known for thousands of years. For example, the Chinese used
fermented soybean curd to treat skin infections 3,000 years ago, and they started using fermented
tea to treat a variety of illnesses as early as 220 B.C. The use of fermentation to make bread rise and to
produce alcoholic beverages is as old as the development of agriculture itself, which most scholars date
to about 8000 B.C.
1. Use the information provided in the passage above to make a
timeline of the history of fermentation.
2. What contribution did Louis Pasteur make to the understanding of
the process of fermentation?
3. What are two of the oldest uses of fermentation?
4. How is fermentation used in medicine today?