Assignment: Photosynthesis and Cellular Respiration

Energy acquisition is essential for all life. Whether the organism is classified as plant or animal, single-celled or multi-cellular, the exchange of energy and the formation of products consist of a series of chemical reactions that occur at the cellular level.
 Resources: Ch. 10 and pp. 422-436 in Bioinquiry, Appendix E, and the student companion Web site
 Due Date: Day 7 [Individual forum]
 Review the following activities:
o Section 10.4: How Do Organisms Acquire Energy?

Appendix E

Photosynthesis and Cellular Respiration Matrix

Complete the matrix. Use the following questions to aid in completion:

• What is the purpose of this pathway?
• Reactants: What does this reaction need to proceed?
• Products: What is produced because of the reaction?
• The role of ATP: Does it supply energy or store energy?

Cellular respiration Photosynthesis
Pathway Glycolysis Krebs Cycle Electron Transport Light-dependent reaction Light-independent reaction
Purpose Provide energy for the light-independent reaction
Where it takes place Cell cytoplasm Mitochondria
Reactants ATP, carbon dioxide, and NADPH
Products Carbon dioxide and ATP
The role of ATP Transports solar energy in the form of ATP to power other chemical reactions

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All i need is what is the purpose, where it takes place, reactantans and products of each. they are glycolysis, krebs cycle, electron transport, light- dependent reaction, and light independent reaction.

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To complete the matrix on Photosynthesis and Cellular Respiration, you will need to understand the purpose of each pathway, the reactants required for the reactions to occur, the products produced as a result of the reactions, and the role of ATP in each process.

1. Cellular Respiration:
- Pathway: Glycolysis
- Purpose: The purpose of glycolysis is to break down glucose into pyruvate molecules, producing a small amount of ATP and NADH in the cytoplasm of the cell.
- Reactants: The reactants for glycolysis are glucose and ATP.
- Products: The products of glycolysis are pyruvate, ATP, and NADH.
- The role of ATP: ATP supplies energy for the initial steps of glycolysis.

2. Cellular Respiration:
- Pathway: Krebs Cycle (also known as the Citric Acid Cycle or the TCA cycle)
- Purpose: The purpose of the Krebs Cycle is to fully break down the pyruvate molecules produced in glycolysis, releasing carbon dioxide and producing NADH and FADH2 as carriers of high-energy electrons.
- Where it takes place: The Krebs Cycle takes place in the mitochondria of the cell.
- Reactants: The reactants for the Krebs Cycle are pyruvate and NAD+.
- Products: The products of the Krebs Cycle are carbon dioxide, ATP, NADH, and FADH2.
- The role of ATP: ATP is produced through substrate-level phosphorylation during the Krebs Cycle.

3. Cellular Respiration:
- Pathway: Electron Transport
- Purpose: The purpose of the Electron Transport chain is to use the high-energy electrons carried by NADH and FADH2 to produce ATP through oxidative phosphorylation. This is the final stage of cellular respiration.
- Where it takes place: The Electron Transport chain takes place in the inner mitochondrial membrane.
- Reactants: The reactants for the Electron Transport chain are NADH, FADH2, and oxygen (O2).
- Products: The products of the Electron Transport chain are water (H2O) and a large amount of ATP.
- The role of ATP: ATP is produced through the process of oxidative phosphorylation in the Electron Transport chain. It stores and supplies energy for cellular processes.

4. Photosynthesis:
- Pathway: Light-dependent reactions (also known as the light reaction)
- Purpose: The purpose of the light-dependent reactions is to capture and convert solar energy into chemical energy in the form of ATP and NADPH, which will be used in the light-independent reactions.
- Reactants: The reactants for the light-dependent reactions are water (H2O), sunlight, and ADP (adenosine diphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate) from the previous reactions.
- Products: The products of the light-dependent reactions are oxygen (O2), ATP, and NADPH.
- The role of ATP: In photosynthesis, ATP is generated through the process of photophosphorylation during the light-dependent reactions. It carries and supplies energy for the light-independent reactions.

5. Photosynthesis:
- Pathway: Light-independent reactions (also known as the Calvin Cycle)
- Purpose: The purpose of the light-independent reactions is to use the ATP and NADPH generated in the light-dependent reactions to convert carbon dioxide (CO2) into glucose and other organic compounds.
- Reactants: The reactants for the light-independent reactions are carbon dioxide (CO2), ATP, and NADPH.
- Products: The products of the light-independent reactions include glucose and other organic compounds.
- The role of ATP: ATP generated during the light-dependent reactions supplies energy for the light-independent reactions, allowing the formation of organic compounds.