Section 2: Cell Energy
1. What is your body telling you when you feel hungry?
Your body needs to get glucose from food in order to perform cellular respiration, so that more
ATP (energy) can be produced.___________________________________________________
From Sun to Cell
1. Does your body need plants for energy? Why or why not?
_YES – your body needs plants because when you eat plants, you get the glucose needed for
cell respiration. Plants also produce oxygen which is necessary for cell respiration.________
2. Which of the following statements describe chlorophyll? (Circle all that apply.)
a. It is a green pigment.
b. It is found in mitochondria.
c. It absorbs light energy.
d. It is found in plant cells.
3. Which of the following are products of photosynthesis? (Circle all that apply.)
a. glucose
b. light energy
c. oxygen
d. carbon dioxide
e. water
f. ATP
Getting Energy from Food
1. How can your body get energy from a banana?
___Your body gets plant sugar (glucose) from the banana. The glucose is combined with
oxygen during cellular respiration, and ATP energy is produced._______________________
2. Cellular respiration does not use oxygen. True or False?(Circle one.)
3. How does breathing help your cells perform cellular respiration?
__When you breathe, inhaling allows your body to get the oxygen necessary for cellular
respiration to take place._____________________________________________________
4. Which of the following are NOT released during cellular respiration? (Circle all that apply.)
a. carbon dioxide
b. water
c. chlorophyll
d. oxygen
e. glucose
f. energy
5. What does your body do with the heat released during cellular respiration? _The heat is
dispersed and used by your body to maintain an internal temperature of 98.6◦F__________
6. Cellular respiration in animals takes place in the _mitochondria_ inside the cell.
7. Cellular respiration occurs only in animal cells. True or False? (Circle one.)
8. How did fermentation help the bread in Figure 10 rise?
_When yeast was combined with warm water and sugar, it broke
down the sugar in the process of fermentation. During this
process, the yeast releases carbon dioxide gas, and air bubbles are
formed in the bread, causing it to rise.___________________
Choose the term in Column B that best matches the description in Column A, and write the
corresponding letter in the space provided.
Column A
9. _E__Glucose is made
10. _F__Oxygen
Column B
inside this structure.
is released during this process.
a. mitochondria
b. ATP
11. _D___This is needed along with light and CO2 for photosynthesis.
c. cellular respiration
12. _B___This
molecule stores energy so cells can use it.
d. water
13. _A___This
structure produces ATP
e. chloroplast
14. _C___Energy
is released during this process.
f. photosynthesis