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Pre-IB Biology Mr. Donato
Photosynthesis and Respiration Review Sheet
1. Write the equation for photosynthesis. Be sure to label the reactants and the products.
CO2 + H2O + Solar energy ( C6H12O6 + O2
2. Write the equation for aerobic respiration. Be sure to label the reactants and the products.
C6H12O6 + O2 ( CO2 + H2O + 36 ATP
3. Identify if the following statements refer to photosynthesis or respiration. Underline the key word in each statement.
R a. This process transfers energy from nutrients to ATP.
P b. Light energy is converted into the chemical energy of organic molecules.
P c. This process produces most of the oxygen present in the atmosphere.
R d. The main result of this process is the production of ATP from the breakdown of glucose
P e. Organisms that undergo this process require carbon dioxide.
P f. Processes uses energy to combine inorganic molecules to synthesize organic molecules
4. The diagram below represents an organelle found in most complex organisms. Label the diagram above with the following terms: carbon dioxide, oxygen, water, glucose, ATP
[pic]
a. Identify the organelle. Mitochondria
b. Explain the function of the organelle. Making usable energy (ATP)
5. Which part of a molecule provides energy for life processes? Chemical bonds
6. Identify the types of organisms that undergo photosynthesis. autotrophs
7. In the diagram to the right, identify in which structure photosynthesis takes place.
Letter: D
Structure/Organelle: chloroplast
8. Circle the bolded word that best completes the sentence
Light energy is captured in the process of (photosynthesis or respiration) which store energy in (organic or inorganic) to be used in the process of (photosynthesis or respiration).
9. Explain what can cause cramping while a person is running.
Lack of oxygen causes the muscle cells to switch to anaerobic respiration which leads to the buildup of lactic acid.
10. Explain the role of guard cells (structure x below) in a leaf.
Guard cells will open or close the stoma to control the loss of water (transpiration) and the exchange of O2 and CO2.
11. If a plant is exposed to sunlight and an increase in CO2, what will most likely happen to the amount of glucose being produced? Glucose production will increase.
12. A chromatography setup is shown to the right. What is the function of chromatography? Separation of pigments.
13. Plant cells use the sun energy to make sugar and then use that sugar to make ATP. Identify which two organelles are involved in this process: chloroplast and mitochondria
14. Identify the gases depicted below.
[pic]
15. Which molecule is considered the energy for all cell activities? ATP
16. Briefly summarize each of the following parts of photosynthesis
|Light Cycle |Calvin Cycle |
|Producing ATP, NADPH, and O2 |Producing ADP and NADP+ |
|O2 produced by photolysis |2 cycles releases two molecules of PGAL which are used to produce glucose |
|Occurs in the thylakoid |Occurs in stroma |
17. Briefly summarize each of the following parts of respiration.
|Glycolysis |Kreb’s Cycle |Electron Transport Chain |
|Breaking down glucose into pyruvic acid. |Breaking down pyruvic acid leading to the |NADH and FADH2 donate electrons and protons to the |
| |production of CO2, NADH, and FADH2 |electron carrier proteins of the electron transport|
|Occurs in cytoplasm | |chain. The final electron acceptor is oxygen. |
| |Occurs in mitochondria |Together with oxygen, electrons and protons form |
|2 ATP | |molecules of water. |
| |2 ATP | |
| | |Occurs in mitochondria |
| | | |
| | |34 ATP |
| | | |
| | | |
• 18. What is fermentation? C6H12O6 → 2C2H5OH (alcohol) + 2CO2 + 2 ATP
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Reactants
Products
Products
Reactants
CO2
O2
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