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Photosynthesis Respiration and Transpiration.Notebook February 13, 2017 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 Essential Question: What processes are required for plant survival? Key Concept: All living things need energy to carry out their basic functions. Living things break down food to get their energy.One thing that makes plants different from most others organisms is how they get their food. 1 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 There are 3 processes that take place in the leaves that are mandatory for plant to survive. ­Photosynthesis ­Respiration ­Transpiration 2 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 ALL PLANTS ARE AUTOTROPHS which means they make their own food for energy. Food for plants is SUGAR Remember: Chloroplast: Attract sunlight with chlorophyll Mitochondria: Energy Factory 3 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 Observe the diagrams below. Can you infer which one is photosynthesis and respiration? 4 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 What is needed: 1st Photosynthesis 1. Sunlight 2. Carbon Dioxide 3. Water What it Makes: ­ Sugar (keeps) ­ Oxygen (released for humans) Where it happens: Chloroplasts Sunlight Water H20 Carbon Dioxide CO2 Equation: Sunlight + 6H2O + 6CO2 = 6O2 + C6H12O6 5 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 6 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 Water Photosynthesis Sugar Carbon Oxygen Dioxide Excess Solar Energy Water 7 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 Photosynthesis makes sugar, but in order to use the food the plant must break it down into usable energy through a process called Respiration. Food Respiration is the process of how plants break down the sugar so the plant can use it for energy. Energy 8 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 What is needed: 2nd Respiration 1. Sugar 2. Oxygen 3. Water What it Makes: ­ Energy (uses) ­ CO2 (releases) ­ Excess Water (releases) Where it happens: Mitochondria Equation: C6H12O6 + 6O2 = ENERGY + 6CO2 + 6H2O 9 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 10 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 • Why does the plant need energy? > To grow > To respond to stimuli > To reproduce > TO LIVE 11 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 Water Sugar Respiration Carbon Oxygen Dioxide Water Energy 12 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 They are Opposites! Photosynthesis: Solar energy + CO2 + Water = Oxygen and Sugar Respiration Oxygen + Sugar = CO2 + Water + Energy 13 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 Some of the water taken in by the roots is used in the process of photosynthesis. However, plants lose most of the water through the leaves. This process is called Transpiration 14 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 Transpiration: the flow of water out of the leaves into the air. • Without a way to control transpiration, plants would wither up and die. > Plants are able to slow down transpiration through Guard Cells. • Guard Cells: open and close the stomata. > When the stomata are closed, water can not escape from the leaf. 15 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 http://studyjams.scholastic.com/studyjams/jams/science/plants/photosynthesis.htm 16 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 Summary: Write 5­6 sentences about the 3 processes that we just learned about. Question: Create question for each section. 17 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 1. Matching __C__ How plants sweat. A. Respiration __B__ How plants make food. B. Photosynthesis __A__ How plants use food. C. Transpiration 2. What structure in plant cells attract sunlight for photosynthesis? chloroplast 3. What prevents a plant from losing too much water. Guard Cells 18 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 1. Which of the following statements is true? A) Plants use chlorophyll to produce carbon dioxide. B) Plants break down chlorophyll as food. C)Plants use chlorophyll to trap the energy in sunlight. D) Plants store chlorophyll as waste. 19 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 2. Which of these are product of photosynthesis? A) oxygen and chlorophyll B) oxygen and carbon dioxide C)carbon dioxide and water D) oxygen and sugar 20 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 3. Which of these do plants need for cellular respiration? A) carbon dioxide and water B) oxygen and sugar C) water and sugar D) water and oxygen 21 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 4. What is the source of energy for photosynthesis? A) soil B) carbon dioxide C) oxygen D) light 22 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 5. Which of these prevents a plant from losing too much water? A) guard cells B) chloroplasts C) chlorophyll D) stomata 23 Photosynthesis Respiration and Transpiration.notebook February 13, 2017 24.
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