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Aug 3, 2023 · The process of photosynthesis occurs in the thylakoids of chloroplasts. The process of cellular respiration occurs in mitochondria. The reactants of photosynthesis are light energy, carbon dioxide, and water. 6CO 2 + 6H 2 O → C 6 H 12 O 6 + 6O 2. The reactants of cellular respiration are glucose and oxygen.
Photosynthesis is a multi-step process that requires sunlight, carbon dioxide (which is low in energy), and water as substrates . After the process is complete, it releases oxygen and produces glyceraldehyde-3-phosphate (G3P), simple carbohydrate molecules (which are high in energy) that can subsequently be converted into glucose, sucrose, or ...
Steps of Photosynthesis. Photosynthesis takes place in two sequential stages: the light-dependent reactions and the light independent-reactions (Calvin cycle). In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and that energy is converted into stored chemical energy. Light-dependent reactions require water and ...
Photosynthesis is essential for life on Earth. Photosynthesis involves two stages: the light-dependent reactions, which require sunlight and water to produce oxygen, ATP, and NADPH, and the light-independent reactions (or "dark reactions"), which use the products of the light-dependent reactions along with carbon dioxide to produce carbohydrates.
- 14 min
- Sal Khan
The following is the chemical equation for photosynthesis (Figure \(\PageIndex{4}\)): Figure \(\PageIndex{4}\): The basic equation for photosynthesis is deceptively simple. In reality, the process takes place in many steps involving intermediate reactants and products. Glucose, the primary energy source in cells, is made from two three-carbon ...
In the first step of the cycle, an enzyme nicknamed rubisco (RuBP carboxylase-oxygenase) catalyzes attachment of CO 2 to a five-carbon sugar called ribulose bisphosphate (RuBP). The resulting 6-carbon molecule is unstable, however, and quickly splits into two molecules of a three-carbon compound called 3-phosphoglycerate (3-PGA).
Autotrophs store chemical energy in carbohydrate food molecules they build themselves. Most autotrophs make their "food" through photosynthesis using the energy of the sun. Photosynthesis occurs in the chloroplast, an organelle specific to plant cells. The light reactions of photosynthesis occur in the thylakoid membranes of the chloroplast.
