Dr. Ramesh. GRU4L5 Photosynthesis and Cellular Respiration
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1 Dr. Ramesh GRU4L5 Photosynthesis and Cellular Respiration
2 DIRECTIONS: Answer the following questions in 2-3 sentences. 1) If the producers absorb 100,000 kcal of energy from the sun, how much will be available to the tertiary consumers? 2) If the primary consumers have 250 J of energy, what will be available to the secondary consumers? 3) Unused energy is lost to the environment as what? Do Now!
3 Objective! The student will (TSW) analyze the relationship between photosynthesis and cellular respiration using balanced equations.
4 Why are we learning this?! Ecology helps us understand the connections and relationships between living organisms and their physical environment.
5 Explore! Why is a solar-powered flashlight a bad idea? How are flashlights normally powered? If a flashlight is just powered by the sun, then when it is dark it won t be able to turn on. Instead we need to use ba@eries that store energy.
6 That s exactly the idea behind photosynthesis. Plants run off of solar energy, but if they didn t have a way to store it, they would die every time the sun went down (like a solar powered flashlight). So, just like a flashlight runs on a ba@ery (chemical energy), plants convert the sun s energy into chemical energy (sugar).
7 Photosynthesis!
8 Photosynthesis! Photosynthesis is the process where plants take in sunlight, water and carbon dioxide and produce glucose (a sugar) and oxygen.
9 Photosynthesis Photosynthesis occurs in the chloroplast
10 Photosynthesis! Photosynthesis occurs in the chloroplasts.
11 Photosynthesis! Balanced Equation Carbon Dioxide +Water + Sunlight à Glucose + Oxygen 6 CO H 2 O + Sunlight à C 6 H 12 O O 2
12 Photosynthesis! Balanced Equation Carbon Dioxide +Water + Sunlight à Glucose + Oxygen 6 CO H 2 O + Sunlight à C 6 H 12 O O 2 Reactants
13 Photosynthesis! Balanced Equation Carbon Dioxide +Water + Sunlight à Glucose + Oxygen 6 CO H 2 O + Sunlight à C 6 H 12 O O 2
14 Photosynthesis! Balanced Equation Carbon Dioxide +Water + Sunlight à Glucose + Oxygen 6 CO H 2 O + Sunlight à C 6 H 12 O O 2 Products
15 Cellular Respiration! Cellular Respiration occurs when organisms take in oxygen and glucose and produce ATP (energy), water and carbon dioxide.
16 Cellular Respiration! Cellular Respiration is not the same thing as breathing!
17 Cellular Respiration!
18 Cellular Respiration! Cellular Respiration takes place in the mitochondria.
19 CELLULAR RESPIRATION 1. Cells can t use glucose for energy. 2. Cellular respiration is the process ALL organisms use to turn glucose into ATP ATP = Energy
20 Cellular respiration Cellular respira+on occurs in the mitochondria.
21 ATP! ATP (adenosine triphosphate) is the cell s energy that powers all cell functions.
22 Cellular respiration ATP is the cell s energy. ATP powers active transport and other cell functions.
23 Cellular Respiration! Balanced Equation Glucose + Oxygen à Carbon Dioxide +Water + Energy! C 6 H 12 O O 2 à 6 CO H 2 O + 38 ATP
24 Cellular Respiration! Balanced Equation Glucose + Oxygen à Carbon Dioxide +Water + Energy! C 6 H 12 O O 2 à 6 CO H 2 O + 38 ATP Reactants
25 Cellular Respiration! Balanced Equation Glucose + Oxygen à Carbon Dioxide +Water + Energy! C 6 H 12 O O 2 à 6 CO H 2 O + 38 ATP Products
26 Photosynthesis and Cellular Respiration! Photosynthesis is a chemical reaction. Autotrophs carryout photosynthesis to make glucose (stored energy), which the cell can turn into ATP (cell energy) later by the process of cellular respiration when it needs it.
27 FLOWCHART Photosynthesis Water + Carbon Dioxide Glucose + Oxygen Cellular Respiration Energy (ATP)
28 Cellular respiration and photosynthesis are opposites. What one creates, the other breaks down. Photosynthesis: 6CO 2 + 6H 2 O + sun à C 6 H 12 O 6 + 6O 2 Reactants: 6CO 2 + H 2 O Products: C 6 H 12 O 6 + 6O 2 Cellular respiration: C 6 H 12 O 6 + 6O 2 à 6CO 2 + 6H 2 O + ATP Reactants: C 6 H 12 O 6 + 6O 2 Products: 6CO 2 + 6H 2 O
29 CHECK FOR UNDERSTANDING Voices at a Level Zero Raise your hand to answer the questions
30 DIRECTIONS Voices at a Level Zero Complete the Guided Practice Answer in complete sentences Raise your hand if you have questions
31 Whiteboards What 3 ingredients do you have to have to do photosynthesis?
32 Whiteboards What kind of organisms do photosynthesis? Why?
33 Whiteboards What is the chemical formula for carbon dioxide?
34 Whiteboards Where does photosynthesis take place?
35 Whiteboards What is the chemical formula for glucose?
36 Whiteboards What two things are made during photosynthesis?
37 Whiteboards Why don t humans and animals do photosynthesis?
38 Whiteboards Why is photosynthesis still really important to humans and animals?
39 Whiteboards What kind of organisms do cellular respiration?
40 Whiteboards What two things do you need to do cellular respiration?
41 Whiteboards What does the cell have to use for energy instead of glucose?
42 Whiteboards How do plants and animals get glucose differently?
43 Whiteboards Where does cellular respiration take place?
44 Whiteboards What is the chemical formula for glucose?
45 Whiteboards Why do animals not have to do photosynthesis?
46 Whiteboards Why do ALL organisms have to do cell respiration?
47 Whiteboards How is cellular respiration similar to photosynthesis?
48 DIRECTIONS Voices at a Level Zero Complete the Independent Practice Answer in complete sentences Raise your hand if you have questions
49 MOUSE IN A JAR! A scientist places a mouse, a plant, and some water in a COMPLETELY CLOSED JAR!!! No air can get in or out of the jar, but the mouse and the plant are still able to stay alive. How is this possible?!?!?!!?!?! 1. What gas is the plant giving off? 2. During what process does the plant produce this gas? 3. What gas is the mouse breathing in? 4. During what process does the mouse use this gas? 5. What gas does the mouse give off? 6. During what process does the mouse produce this gas? 7. What gas does the plant take in? 8. How is it possible that the mouse and the plant can both stay alive if the jar is shut?
50 Write down 2 similarities and 2 differences between the following reactions. What do you notice? Photosynthesis: 6CO 2 + 6H 2 O + sun! C 6 H 12 O 6 + 6O 2 Cellular respiration: C 6 H 12 O 6 + 6O 2! 6CO 2 + 6H 2 O + ATP
51 DIRECTIONS Voices at a Level Zero Complete the Exit Ticket Answer in complete sentences Raise your hand if you have questions
52 Exit Ticket! DIRECTIONS: Copy and answer the following questions. 1) Write the equation for cell respiration. 2) Write the equation for photosynthesis. 3) How are the two related?
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