- The organelle in which photosynthesis takes place in is called a chloroplast. They contain chemical compounds called chlorophylls that give the organelles a green colour.
- A chloroplasts has an inner and an outer membrane. Inside the inner membrane is a thick fluid called stroma that suspend disk-shaped sacs called thylakoids inside it. Photosynthesis' general equation can be written out as:
6 CO2 + 6 H2O ->->-> C6H12O6 + 6 O2
Concept Check 8.1
2) What are the reactants for photosynthesis? What are the products?
The reactants for photosynthesis is carbon dioxide and water. The products are glucose and oxygen.
3) Name the two main stages of photosynthesis. How are the two stages related?
The two main stages of photosynthesis are light reactions and the Calvin cycle and they are related because both are needed in photosynthesis, and both transform a compound into another, and they both interact by giving each other certain molecules. Both are also rather complex in the number of steps.
Vocabulary:
Chloroplast: The cellular organelle where photosynthesis takes place.
Chlorophylls: Chemical compounds found in chloroplasts that give chloroplasts their color.
Stroma: The thick fluid found in the inner membrane of the chloroplast.
Thylakoids: Disk-shaped sacs that are suspended in the stroma.
Light Reactions: One of the two main stages of photosynthesis that convert the energy in sunlight to chemical energy.
Calvin cycle: One of the two main stages of photosynthesis that makes sugar from the atoms in carbon dioxide plus the hydrogen ions and high-energy electrons carried by NADPH.
- Photosynthesis occurs in two main stages, the light reactions and the Calvin cycle.
- The light reactions convert the energy from sunlight into chemical energy.
- The Calvin cycle makes sugar from the atoms in carbon dioxide plus the hydrogen ions and high-energy electrons carried out by NADPH.
Concept Check 8.1
- Draw and label a simple diagram of a chloroplast that includes the following structures: outer and inner membranes, stroma, thylakoids.
2) What are the reactants for photosynthesis? What are the products?
The reactants for photosynthesis is carbon dioxide and water. The products are glucose and oxygen.
3) Name the two main stages of photosynthesis. How are the two stages related?
The two main stages of photosynthesis are light reactions and the Calvin cycle and they are related because both are needed in photosynthesis, and both transform a compound into another, and they both interact by giving each other certain molecules. Both are also rather complex in the number of steps.
Vocabulary:
Chloroplast: The cellular organelle where photosynthesis takes place.
Chlorophylls: Chemical compounds found in chloroplasts that give chloroplasts their color.
Stroma: The thick fluid found in the inner membrane of the chloroplast.
Thylakoids: Disk-shaped sacs that are suspended in the stroma.
Light Reactions: One of the two main stages of photosynthesis that convert the energy in sunlight to chemical energy.
Calvin cycle: One of the two main stages of photosynthesis that makes sugar from the atoms in carbon dioxide plus the hydrogen ions and high-energy electrons carried by NADPH.
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