6 Questions
What is the overall equation for photosynthesis?
6 CO2 + 6 H2O → C6H12O6 + 6 O2
Where do the light-dependent reactions of photosynthesis occur?
In the thylakoid membranes of the chloroplast
What is the role of RuBisCO in photosynthesis?
To convert CO2 into glucose
What is the byproduct of photosynthesis that supports life on Earth?
Oxygen
What type of photosynthesis does not produce oxygen?
Anoxygenic photosynthesis
What is a factor that can affect the rate of photosynthesis?
Temperature
Study Notes
Photosynthesis
Definition: Photosynthesis is the process by which plants, algae, and some bacteria convert light energy from the sun into chemical energy in the form of organic compounds, such as glucose.
Overall Equation:
6 CO2 + 6 H2O + light energy → C6H12O6 (glucose) + 6 O2
Light-Dependent Reactions:
- Occur in the thylakoid membranes of the chloroplast
- Light energy is absorbed by pigments such as chlorophyll and converted into ATP and NADPH
- Water is split into oxygen and hydrogen ions
Light-Independent Reactions (Calvin Cycle):
- Occur in the stroma of the chloroplast
- ATP and NADPH from the light-dependent reactions are used to convert CO2 into glucose
- Requires the enzyme RuBisCO
Importance of Photosynthesis:
- Produces oxygen for aerobic respiration
- Provides energy and organic compounds for the food chain
- Supports life on Earth
Factors Affecting Photosynthesis:
- Light intensity and wavelength
- Temperature
- Water availability
- CO2 concentration
Types of Photosynthesis:
- Oxygenic photosynthesis (produces oxygen): found in plants, algae, and cyanobacteria
- Anoxygenic photosynthesis (does not produce oxygen): found in certain bacteria
Photosynthesis
- Definition: Process by which plants, algae, and some bacteria convert light energy into chemical energy in the form of organic compounds, such as glucose.
Overall Equation
- 6 CO2 + 6 H2O + light energy → C6H12O6 (glucose) + 6 O2
Light-Dependent Reactions
- Occur in thylakoid membranes of the chloroplast
- Light energy is absorbed by pigments like chlorophyll and converted into ATP and NADPH
- Water is split into oxygen and hydrogen ions
Light-Independent Reactions (Calvin Cycle)
- Occur in the stroma of the chloroplast
- ATP and NADPH from light-dependent reactions are used to convert CO2 into glucose
- Requires the enzyme RuBisCO
Importance of Photosynthesis
- Produces oxygen for aerobic respiration
- Provides energy and organic compounds for the food chain
- Supports life on Earth
Factors Affecting Photosynthesis
- Light intensity and wavelength
- Temperature
- Water availability
- CO2 concentration
Types of Photosynthesis
- Oxygenic photosynthesis: produces oxygen, found in plants, algae, and cyanobacteria
- Anoxygenic photosynthesis: does not produce oxygen, found in certain bacteria
This quiz covers the process of photosynthesis, including the overall equation, light-dependent reactions, and the role of pigments like chlorophyll.
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