WorksheetsCell Energy Unit Test
Total questions: 22
Worksheet time: 11mins
Name
Class
Date
1.
1. What step of cellular respiration produces the most ATP molecules?
a)
Krebs Cycle
b)
Glycolysis
c)
Electron Transport Chain
2.
2. Which organelle is most responsible for producing ATP?
a)
chloroplast
b)
mitochondria
c)
lysosome
3.
3. How would a drop in temperature from 70 degrees Fahrenheit to 20 degrees Fahrenheit most likely affect the processes of cellular respiration and photosynthesis (Hint: 70-20 is significant)?
a)
a. The rates of both cellular respiration and photosynthesis would decrease.
b)
b. The rates of both cellular respiration and photosynthesis would remain constant.
c)
c. The rates of both cellular respiration and photosynthesis would increase.
4.
Increasing these things could increase the rate of cellular respiration? (Select all that apply)
a)
Carbon Dioxide
b)
Oxygen
c)
Carbohydrates
d)
Mitochondria
5.
4. Which of these would lead to a lower rate of photosynthesis in a plant?
a)
a decrease in the amount of oxygen in the air.
b)
an increase in the amount of carbon dioxide in the air.
c)
a decrease in the amount of carbon dioxide in the air.
6.
5. Which of these best explains the difference between the way animals and plants exchange gases with their environments?
a)
Animals use only photosynthesis, while plants use both photosynthesis and respiration.
b)
Animals use only respiration, while plants use both photosynthesis and respiration.
c)
Animals only use respiration, while plants use only photosynthesis.
7.
6. Which statement describes a way in which cellular respiration DIFFERS from photosynthesis?
a)
Cellular respiration consists of two phases.
b)
Cellular respiration releases oxygen.
c)
Cellular respiration provides usable energy for the cell.
8.
7. A shortage of water would directly inhibit (decrease the rate) which reaction the most?
a)
cellular respiration
b)
photosynthesis
9.
8. The main energy-trapping molecule (catalyst) in plants is _____.
a)
thylakoid
b)
stroma
c)
chlorophyll
10.
9. Energy from sunlight is trapped by chlorophyll located in the _____.
a)
stroma
b)
matrix
c)
thylakoid
11.
10. Chlorophyll traps _____ from sunlight.
a)
hydrogen
b)
energy
c)
glucose
12.
11. During the light independent reaction in photosynthesis, what molecule is broken down (split)?
a)
oxygen gas
b)
carbon dioxide
c)
water
13.
12. Which of the following equations BEST represents photosynthesis?
a)
C + O₂ + H₂O→CO₂ + HOH
b)
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
c)
C₆H₁₂O₆ → 6CO₂ + 6H₂O
14.
13. Leaves appear green because the green portion of the light that strikes them is _____.
a)
absorbed
b)
destroyed
c)
reflected
15.
14. Which of the following equations BEST represents cellular respiration?
a)
C₆H₁₂O₆ →ATP
b)
6CO₂ + 6H₂O → C₂H₈O₄ + 6O₂ +ATP
c)
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O +ATP
16.
15. In which step of cellular respiration is carbon dioxide produced?
a)
Electron Transport Chain
b)
Krebs Cycle
c)
Glycolysis
17.
16. In the chemical reaction of photosynthesis, 1 molecule of glucose is represented by _______________.
a)
CO₂
b)
H₂O
c)
C₆H₁₂O₆
18.
17. How are cellular respiration and photosynthesis related?
a)
products and reactants of each are the same
b)
reactants of each are the same
c)
reactants of one are the products of the other
19.
18. Which of the following describes photosynthesis:
a)
In photosynthesis, glucose is formed and oxygen released
b)
In photosynthesis, glucose is broken down and oxygen used
c)
In photosynthesis, carbon dioxide is produced
20.
19. How does the mitochondria provide easy and accessible energy for cell function?
a)
produces ATP
b)
produces protein
c)
produces DNA
21.
In the chemical reaction of photosynthesis, 1 molecule of sugar is represented by _______________.
a)
O₂
b)
CO₂
c)
H₂O
d)
C₆H₁₂O₆
22.
20. The Calvin Cycle is found in what process.
a)
Photosynthesis
b)
Cellular Respiration
100 %
