1. AEROBIC & ANEROBIC RESPIRATION Energy in General:
1. Differentiate an autotroph from a heterotroph as it relates to obtaining energy.
_____________________________________________________________________
Autotroph – make their own food (producers/plants)
Heterotroph – consume their food from other organisms (consumers).
*Use the following diagram to answer questions 2-5:
2. What is this molecule called? ________
3. Why is this molecule important to living things? _________
4. This molecule releases energy when the ________ between the last two phosphorus
molecules are broken.
5. What is “left over” when energy is released from this molecule? _________
6. Which of the following is a unit of energy? a. calorie b. cytosol c. glycolysis d. NAD+
ATP
ENERGY
BONDS
ADP + P

2. 7. Is fermentation an aerobic or anaerobic process? Explain.
II. Fermentation:
7. Is fermentation an aerobic or anaerobic process? Explain.
_____________________________________________
8. Where does the pyruvic acid come from, that enters into the process of fermentation?
9. Compare and contrast the two types of fermentation.
____________________________________________________________
ANAEROBIC – NO OXYGEN IS PRESENT.
FROM THE BREAKDOWN OF GLUCOSE. (C3H4O3)
*Both are ANAEROBIC (occurs without oxygen).
*ALCOHOLIC FERMENTATION – occurs in plant cells and yeast.
Glucose  Pyruvic Acid  CO2 + 2 ATP
*LACTIC ACID FERMENTATION – occurs in animal cells.
Glucose  Pyruvic Acid  Lactic Acid  2 ATP

3. 10. Yeast produces alcohol and CO2 in the process of
a. lactic acid fermentation c. alcoholic fermentation
b. aerobic respiration d. glycolysis
11. Both lactic acid and alcoholic fermentation produce
a. a 2-carbon molecule from a 6-carbon molecule c. ATP from ADP and phosphate
b. CO2 from a three-carbon molecule d. NAD+ from NADH and H+
12. When muscles are exercised extensively in the absence of sufficient oxygen,
a. lactic acid is produced c. a large amount of ATP is formed
b. NADH molecules split d. the Krebs Cycle occurs

4. They both are because they both produce ATP.
III. Cellular Respiration:
13. Is cellular respiration aerobic or anaerobic? Explain.
____________________________________________   
14. When living cells break down the bonds holding molecules together, energy is
a. stored as ADP c. released.
b. stored as ATP d. changed into glucose
15. In cellular respiration, the most energy is transferred during aerobic respiration.
a. TRUE b. FALSE
16. Glycolysis begins with glucose and produces
a. starch` c. acetyl CoA
b. lactic acid d. pyruvic acid
17. Energy is released from ATP when the bond is broken between
a. two phosphate groups c. ribose and a phosphate group
b. adenine and ribose d. adenine and a phosphate group
18. Glycolysis takes place
a. in the cytoplasm c. only if oxygen is present
b. in the mitochondria d. only if oxygen is absent
They both are because they both produce ATP.

5. IV. Photosynthesis & Cellular Respiration: Photosynthesis creates glucose
molecules  this fuels cellular respiration in plant cells  which creates
ATP  which fuels plant for growth & reproduction  which provides
carbohydrates to animals for their cellular respiration. The energy cycle continues.

6. Chloroplast
Carbon Dioxide
Glucose
Water
Oxygen
ATP
Mitochondria