5 Questions
Where do light-dependent reactions occur?
Thylakoid membranes of chloroplasts
What is the byproduct of water oxidation in light-dependent reactions?
Oxygen
Where is pyruvate converted into acetyl-CoA?
Mitochondria
What is the final electron acceptor in oxidative phosphorylation?
Oxygen
Where is glucose broken down into pyruvate?
Cytosol of cell
Study Notes
Photosynthesis Process
-
Light-Dependent Reactions
- Occur in thylakoid membranes of chloroplasts
- Light energy excites electrons, which are used to generate ATP and NADPH
- Water is oxidized, releasing oxygen as a byproduct
-
Light-Independent Reactions (Calvin Cycle)
- Occur in stroma of chloroplasts
- ATP and NADPH from light-dependent reactions are used to fix CO2 into glucose
- Glucose is produced and stored in plant cells
Respiration Process
-
Glycolysis
- Occurs in cytosol of cell
- Glucose is broken down into pyruvate, producing ATP and NADH
-
Citric Acid Cycle (Krebs Cycle)
- Occurs in mitochondria
- Pyruvate is converted into acetyl-CoA, which enters the cycle
- ATP, NADH, and FADH2 are produced
-
Oxidative Phosphorylation
- Occurs in mitochondria
- NADH and FADH2 from citric acid cycle are used to generate ATP through electron transport chain
- Oxygen is the final electron acceptor, producing water as a byproduct
Photosynthesis Process
- Occurs in thylakoid membranes of chloroplasts
- Light energy excites electrons, generating ATP and NADPH
- Water is oxidized, producing oxygen as a byproduct
Light-Independent Reactions (Calvin Cycle)
- Occurs in stroma of chloroplasts
- ATP and NADPH from light-dependent reactions are used to fix CO2 into glucose
- Glucose is produced and stored in plant cells
Respiration Process
Glycolysis
- Occurs in cytosol of cell
- Glucose is broken down into pyruvate, producing ATP and NADH
Citric Acid Cycle (Krebs Cycle)
- Occurs in mitochondria
- Pyruvate is converted into acetyl-CoA, entering the citric acid cycle
- ATP, NADH, and FADH2 are produced
Oxidative Phosphorylation
- Occurs in mitochondria
- NADH and FADH2 from citric acid cycle are used to generate ATP through electron transport chain
- Oxygen is the final electron acceptor, producing water as a byproduct
Understand the processes of photosynthesis and respiration, including light-dependent and light-independent reactions, glycolysis, and more. Test your knowledge and identify the key stages and components involved.
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