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All living things require ENERGY to power all the work that happens inside of their cell(s) Organisms can fall into two categories, based on the source of their Organisms can fall into two categories, based on the source of their food: Autotrophs : Make their own food Heterotrophs : Have to eat/absorb their food Review: Think of this…
Through photosynthesis ! The process by which the energy in sunlight is stored in the bonds of glucose. Ex: photosynthesizing organisms: the green parts of plants, algae, bacteria, protists How can autotrophs make their own food?
THE BIG PICTURE SUN Glucose ATP PHOTOSYNTHESIS CELLULAR RESPIRATIO N
General formula for photosynthesis IMPORTANT!!! Word equation: Water + Carbon Dioxide Oxygen + Glucose Chemical equation: 6H2O + 6CO2 6O2 + C6H12O6 sunlight
General formula for photosynthesis IMPORTANT!!! Word equation: Water + Carbon Dioxide Oxygen + Glucose Chemical equation: 6H2O + 6CO2 6O2 + C6H12O6 sunlight product s reactan ts
Photosynthesis occurs in the chloroplasts of plant cells. These are specialized cell structures. Where does photosynthesis occur? Chlorophyl l pigment
The reaction begins in chlorophyll, which is a type of pigment found in chloroplasts. A pigment is a light–absorbing molecule. It can absorb the energy from light. Chlorophyl l pigment
The reaction begins in chlorophyll, which is a type of pigment found in chloroplasts. Pigments absorb some wavelengths of light and reflect others. The color seen by your eyes is the color that the pigment reflects. What color do you see? green
The Photosynthesis Reaction Has 2 Parts 1.Light-DEPENDENT reactions: occur in the thylakoid Requires sunlight and water. Produces ATP and oxygen. Chlorophyl l pigment
The Photosynthesis Reaction Has 2 Parts 1.Light-DEPENDENT reactions: occur in the thylakoid Requires sunlight and water. Produces ATP and oxygen. Chlorophyl l pigment
The Photosynthesis Reaction Has 2 Parts 2.Light-INdependent reactions occur in the stroma Require ATP and CO2. Produces glucose. Chlorophyl l pigment
The Photosynthesis Reaction Has 2 Parts 2.Light-INdependent reactions occur in the stroma Require ATP and CO2. Produces glucose. Chlorophyl l pigment
Fossil fuels are essentially compressed organic material compressed carbon compounds, like glucose, that were made through photosynthesis millions of years ago! Photosynthesis from the past