Chapter 6 Review Questions
Section 6-1: Energy and Life:
1. Where does the energy of food originally come from? _______________
2. Complete the table describing the types of organisms:
Type of Organism
Description
Organisms that make their own food
Examples
Organisms that obtain energy from
the food they eat
3. What is one of the principal chemical compounds that cells use to store energy?
______________________
4. How is ATP different from ADP? ______________________________________________
5. Label the parts of the ATP molecule:
6. When a cell has energy available, how can it store small amounts of that energy? _____
_____________________________________
7. When is the energy stored in ATP released? ____________________________________
_________________________________
8. List 2 ways cells use the energy of ATP: ________________________________________
9. Circle the letter of where cells get the energy to regenerate ATP.
a. ADP
b. Phosphates
c. Foods like glucose
d. Organelles
Section 6-2: Photosynthesis- An Overview:
1. What occurs in the process of photosynthesis? __________________________________
_____________________________________
2. What did Jan van Helmont conclude from his experiment? ________________________
________________________
3. Circle the letter of the substance produced by the mint plant in Joseph Priestley’s
experiment.
a.
b.
c.
d.
Carbon dioxide
Water
Air
Oxygen
4. What did Jan Ingenhousz show? _____________________________________________
5. Write the overall equation for photosynthesis using words.
__________________________________________________________________________
6. Photosynthesis uses the energy of sunlight to convert water and carbon dioxide into
oxygen and high-energy _____________.
7. What does photosynthesis require in addition to water and carbon dioxide?
____________ and __________________
8. Plants gather the sun’s energy with light-absorbing molecules called _____________.
9. What is the principal pigment of plants? _______________
10. Circle the letter of the regions of the visible spectrum in which chlorophyll absorbs light
very well.
a. Blue-violet region
b. Green region
c. Red region
d. Yellow region
Section 6-3: The Reactions of Photosynthesis:
1. Chloroplasts contain saclike photosynthetic membranes called __________________.
2. What is a granum? __________________________________________________________
3. The region outside the thylakoid membranes in the chloroplasts is called the ________.
4. What are the 2 stages of photosynthesis called?
a. __________________________________
b. __________________________________
5. Circle the letter of each sentence that is true about the light-dependent reactions.
a. They convert ADP into ATP.
b. They produce oxygen gas.
c. They convert oxygen into carbon dioxide.
d. They convert NADP+ into NADPH
6. Where do the light-dependent reactions take place? _____________________
7. Why are the reactions of the Calvin cycle also called the light-independent reactions?
________________________________________
8. What are 3 factors that affect the rate at which photosynthesis occurs?
a. _________________________________
b. _________________________________
c. _________________________________
9. True or False: Increasing the intensity of light decreases the rate of photosynthesis. ___
Chapter 7: Cellular Respiration Review Questions
Section 7-1: Chemical Pathways:
1. What is a calorie? ___________________________________________________________
2. How many calories make up one Calorie? __________________
3. Cellular respiration begins with a pathway called __________________.
4. True or False: Glycolysis releases a great amount of energy. ______________
5. What is cellular respiration? __________________________________________________
6. What is the equation for cellular respiration, using chemical formulas?
________________________________________________________
7. What are the 3 main stages of cellular respiration?
a. ____________________________________
b. ____________________________________
c. ____________________________________
8. Where does glycolysis take place? ____________________
9. Where do the Krebs cycle and electron transport take place? ____________________
10. What is glycolysis? __________________________________
11. How does the cell get glycolysis going? _____________________________
12. If the cell uses 2 ATP’s at the beginning of glycolysis, how does it end up with a net
gain of 2 ATP molecules? ____________________________________________________
13. What is NAD? ____________________________________________________________
14. What is the function of NAD+ in glycolysis? _____________________________________
15. Why can glycolysis supply energy to cells when oxygen is not available? ____________
______________________________
16. What is fermentation? ________________________________________________________
17. Because fermentation does not require oxygen, it is said to be _______________.
18. What are the 2 main types of fermentation? __________________ and _______________