Download 10.4 Cells_and_Energy Hmwk

Name
Date
Class
Content Practice A
LESSON 4
Cells and Energy
Directions: Put the following steps in the correct order from 1 to 7. Then add the information to the flowchart to
show the steps in cellular respiration.
Chemical reactions occur in the cell’s cytoplasm.
Small molecules enter mitochondria.
Carbon dioxide is released from the cell.
Water is released from the cell.
Small amounts of ATP are released.
Sugar molecules enter a cell.
Large amounts of ATP are produced.
1.
2.
7.
3.
6.
4.
5.
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Cell Structure and Function
Name
Date
Content Practice B
Class
LESSON 4
Cells and Energy
Directions: Work with a partner. Take turns quizzing each other by reading the questions aloud. Use the
textbook to research answers that you are unsure about.
1. What does cellular respiration convert?
2. In which organelle does respiration take place?
3. What happens during glycolysis?
4. What three things are produced during the second step of respiration?
5. How does the process of fermentation differ from the process of respiration?
6. Where can the process of lactic-acid fermentation be found?
7. What do human and animal cells obtain through lactic-acid fermentation during
exercise?
8. What does alcohol fermentation produce?
9. What do plant cells use to produce glucose and oxygen?
10. What is reflected by a plant to give it a green color?
11. What does an animal take in when it eats a plant?
12. Which molecules are involved in photosynthesis and respiration?
Cell Structure and Function
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Name
Date
School to Home
Class
LESSON 4
Cells and Energy
Directions: Use your textbook to answer each question or respond to each statement.
1. What is cellular respiration?
2. In which two parts of the cell does cellular respiration occur?
3. How is fermentation similar to cellular respiration?
4. How is fermentation different from cellular respiration?
5. What is photosynthesis?
6. Identify the following chemical reactions:
a. 6CO2 + 6H2O → C6H12O6 + 6O2
b. C6H12O6 → ATP (energy) + lactic acid
c. C6H12O6 → 6O2 + 6H2O + ATP (energy)
d. C6H12O6 → ATP (energy) + CO2 + alcohol
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Cell Structure and Function
Name
Date
Class
Key Concept Builder
LESSON 4
Cells and Energy
Key Concept How do some cells make food molecules?
Directions: On each line write the correct term from the word bank.
carbon dioxide
glucose
light energy
oxygen
water
Sun
1.
Chloroplast
2.
and 3.
Mitochondrion
4.
ATP (energy)
and 5.
Directions: Circle the term in parentheses that correctly completes each sentence.
6. In photosynthesis, light energy is absorbed by (water/chlorophyll) and
other pigments.
7. The chemical reactions of photosynthesis occur in organelles called
(chloroplasts/mitochondrion).
8. In photosynthesis, light energy, water, and (carbon dioxide/oxygen) are used
to make sugars.
9. Photosynthesis also produces (oxygen/carbon dioxide) that is released into
the atmosphere.
Cell Structure and Function
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