HW: Flashcards due Thursday Do Now: Think of the plants near your house, flowers in a garden, or trees outside the school. What do they need to stay alive? -- What causes them to die? --

Aim: What is Photosynthesis? Do Now: Why Do Cells Need Energy? 2. What is the name of the energy molecule? 3. Where is energy Stored in a molecule of ATP? 4. How is energy stored and release from ATP?

What happens in photosynthesis? Light “synthesis” Making compounds It uses light from the sun to make a compound (glucose)

Types of Nutrition Autotrophs - Plants and some protists that are able to make their own food

How do autotrophs make food? Photosynthesis – Uses energy in the form of light to make food The food made is glucose Sunlight Oxygen Carbon Dioxide Water

Heterotrophs Heterotrophs can NOT directly use the sun’s energy Examples: Animals, Humans Animals have to EAT plants and/meat to get energy

Photosynthesis Materials (what is needed) Water CO2 Sunlight Products (what is made) Glucose Oxygen Water http://studyjams.scholastic.com/studyjams/jams/science/plants/photosynthesis.htm

Photosynthesis Equation: Carbon Dioxide + Water + Energy (Sun light) Food (glucose), Oxygen, and water

Chemical Equation: CO2 + H2O  C6H12O6 + O2 + H2O Summary: Carbon Dioxide Water Glucose (simple sugar) Water Oxygen Summary: Inorganic Compounds  Organic Compound I

Photosynthesis Photosynthesis song

Where does Photosynthesis take place? Chloroplasts- Organelle where photosynthesis takes place.

Chloroplast in Moss

Inside A Chloroplast Chlorophyll- Chlorophyll is why plants look green Green pigment that captures light from the sun Chlorophyll is why plants look green

Solar Energy The sun is needed for photosynthesis because of its energy!

Light is made up of many different colors ! Chlorophyll captures RED & BLUE light to use for photosynthesis Plants reflect GREEN light

Light Energy Chemical Energy Summary of Photosynthesis Light Energy Chemical Energy (Sun) (Glucose)

Lets Review… 1. What is a heterotroph? 2. What is an autotroph? 3. Give a simple definition of photosynthesis. 4. Name the materials needed for Photosynthesis. 5. In what organelle does photosynthesis take place? 6. What is the name of the green pigment found in plants? Can’t make its own food. Has to eat to get nutrients. Makes its own food. EX: Photosynthesis in plants. Using light energy to make food (organic compounds) Light Energy (SUN), Water, Carbon Dioxide Chloroplast Chlorophyll

Why is this funny!?! (Yes, it’s funny) Why is photosynthesis important for plants? Why is it important for us???? https://www.youtube.com/watch?v=JJxZH_Y5D4s

http://ed.ted.com/lessons/the-simple-but-fascinating-story-of-photosynthesis-and-food-amanda-ooten Discovery of Photosynthesis