Glu Jou Heterotroph cos Chlorophyll ATles e
Cellular Respiration P The Energy Cycle
Oxidation Photosynthesis Stomata Pigment Autotroph Light Energy
Heat Energy Calories MS Science Frameworks
MSF8.3h: Describe how an organism gets energy from oxidizing its food and releasing some of its energy as heat. (DOK 1) Compounds and Elements to learn
Write these in title box and make flashcards to learn them.
N2- nitrogen O2 - oxygen CO2 - carbon dioxide
NaCl - sodium chloride ( table salt) The Energy Cycle PHOTOSYNTHESIS Where does energy come from?
The sun provides almost all the energy used by living things on Earth.
Every living thing needs energy! What is photosynthesis? The process by which a cell captures the energy in sunlight and uses it to make food. What is photosynthesis?
Photo = Light Synthesis = Put together During photosynthesis, plants and some other organisms use energy from the sun to convert carbon dioxide and water into glucose and oxygen. Photosynthesis is a two-stage process.
First stage – capturing the energy in sunlight; this occurs in the leaves and other green parts of the plant. Chlorophyll is the main pigment found in the chloroplasts of plants.
A pigment is a colored chemical compound that absorbs and reflects light. Photosynthesis is a two-stage process. Second stage – the cell uses the captured energy to produce sugars.
The cell needs two raw materials for this stage:
Water (H2O) and Carbon Dioxide (CO2). Water is taken from the soil by the roots of the plant. Stomata – small openings on the underside of
leaves where CO2 enters the plant and O2 exits. Stage 2: *Captured materials produce glucose (sugar) and oxygen (by-product) What are chloroplasts? Chloroplasts contain chlorophyll (green pigment) which powers stage 2. They are found in a plant cell. 6 CO2 + 6 H20 →C6H12O6 + 6 O2
[ Reactants ] [Products ]
C6H12O6 is the chemical formula for glucose which is a simple sugar. Autotroph – an organism that makes its own food. Ex: Plants, some protists, some bacteria Heterotroph - an organism that can not
make its own food. Ex: Animals, fungi, most protists, most bacteria Nearly all living things obtain energy directly or indirectly from the energy of sunlight captured during photosynthesis.
Almost all of the oxygen in the Earth’s atmosphere (which is 21% oxygen) is produced by living things. Balancing Equations. ● Copy this equation on the back of your notes packet and balance it. Show your work. ● ● __ CO2 + __ H2O --->__ C6H12O6 + __ O2 ● ● C C ● ● H H ● ● O O ●