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4.2-4.3 Photosynthesis.

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Presentation on theme: "4.2-4.3 Photosynthesis."— Presentation transcript:

1 Photosynthesis

2 Description of microscope
Bellwork 12/4 Directions: Read pages and complete the chart below Type of Microscope Description of microscope Uses of microscope Compound Light Scanning Electron Microscope Transmission Electron Microscope If you were absent pick up your work Complete the following bellwork on your own paper. Copy the chart not just answer it! 1. What are the differences between light and electron microscopes?  2. Using page 21, what type of microscope would be best for showing details inside a cell like mitochondria? Explain why.  3. Your science class is going to examine the one-celled organisms in pond water. What is the best microscope to use?  4. Which of these microscopes would let you see the hair like projections on the surface of cells better?

3 Directions: Read pages 19-20 and complete the chart below
Type of Microscope Description of microscope Uses of microscope Compound Light Scanning Electron Microscope Transmission Electron Microscope 1st type of microscope, most widely used light passes through 2 lenses Can magnify up to 2000x Can see natural color of specimen Used to view living and preserved specimens Can magnify up to 100,000x Creates 3D images Color must be added by computer Used to view the surface of objects/organisms that are dead Can magnify up to 250,000x Examines INSIDE of specimens Color must be enhanced by computers Used to view the inside of organisms

4 1. What are the differences between light and electron microscopes?
 2. Using page 21, what type of microscope would be best for showing details inside a cell like mitochondria? Explain why. Light microscopes view living objects with light Electron microscopes view dead objects using electrons Transmission election microscope because it is high powered enough to view the inside of a organism

5  3. Your science class is going to examine the one-celled organisms in pond water. What is the best microscope to use?  4. Which of these microscopes would let you see the hair like projections on the surface of cells better? Light microscopes Scanning Electron Microscope

6 Agenda 12/3 Review Photosynthesis R.R
HW: Write the equation for photosynthesis 10 times

7 Essential Question: Learning Goal:
What is ATP and what is its role in the cell? How do organisms convert sunlight into chemical energy? Explain ATP energy transfers and the ATP/ADP cycle. Identify the reactants, products and process of photosynthesis

8 Photosynthesis Reading Road Map
Pg 100 Read the second paragraph under The Chemical energy used for most cell processes is carried by ATP. What does ATP stand for? Adenosine Triphosphate What is ATP used for? Energy

9 Photosynthesis Reading Road Map
Pg 100 Read the third paragraph under The Chemical energy used for most cell processes is carried by ATP. How many phosphates are in ATP? 3 How is the energy released? The phosphates break apart

10 Turn and Talk – should partner
Partner A closest to the front door Partner B furthest from the closet door. Partner A explain to partner B the purpose of ATP Partner B explain to partner A how ATP releases the energy.

11 Photosynthesis Reading Road Map
Pg 103 Read the definition of photosynthesis. Write a more simple definition of photosynthesis. A plant makes its food.

12 Photosynthesis Reading Road Map
Pg 105 Read the third paragraph. On the Basic Photosynthesis Picture use the information you read to label the picture with the following words and color the arrows the designated color. 1. Light (yellow), 2. Carbon dioxide(red) 3. Water (blue) 4. Oxygen (purple) 5. Sugar (Green-color the plant stem & leaves)

13 LIGHT OXYGEN CARBON DIOXIDE SUGAR WATER

14 Equation for Photosynthesis
Underneath the picture write the following:

15 Photosynthesis Reading Road Map
Pg 105 Read the first and second paragraph and fill in the chart about light reactions.

16 Photosynthesis Reading Road Map
Light Reaction Energy Source Where reaction occur? What is needed to start the reaction? What is formed in the reaction? What is released in the reaction? Dependent Independent Oxygen sunlight Membranes of thylakoids Water & sunlight ATP Light-dependent reaction Stroma of chloroplasts Carbon dioxide Simple sugar Oxygen

17

18 Turn and Talk – Face Partner
Partner A closest to the closet. Partner B closest to the front door. Partner B please explain to partner A what is NEEDED to start a light dependent reaction. Partner A please explain to partner B what is RELEASED from the light dependent reaction

19 Turn and Talk – Face Partner
Same Partner Partner B please explain to partner A what is needed to start a light independent reaction Partner A please explain to partner B what is released from a light independent reaction

20 Photosynthesis Reading Road Map
Pg 108 Skim through Section 4.3. How many stages are in photosynthesis? 2 What does each stage do? First Stage: captures & transfers energy Second Stage: Uses energy to make sugars

21 Turn and Talk – should partner
Partner A closest to front door Partner B furthest from front door Partner A please tell Partner B where the first stage of Photosynthesis occurs Partner B please tell partner A where the second stage of photosynthesis occurs.

22 Photosynthesis Reading Road Map
Pg 110 Read the Summary of Light-Dependent Reaction. Pg 112 Read the Summary of Light-Independent Reactions Label the Light Reactions picture using the following chemical formulas according to what you read: CO2, H2O, Light, O2, ATP, ADP, NADP, NADPH, Calvin Cycle, C6H12O6

23 LIGHT H2O O2 ATP NADPH NADP ADP CO2 Calvin Cycle C6H12O6

24 Photosynthesis Reading Road Map
Pg 112 Read the second paragraph under Functions of Photosynthesis What are the two functions of photosynthesis? Make sugar Provides materials for plant growth & development

25 Photosynthesis Reading Road Map
On a piece of notebook paper create 2 multiple choice and 2 True/False test questions about photosynthesis. You need to write the question and the answer. Put your name on your paper and turn it into your period’s tray. DO NOT USE EXACT QUESTIONS FROM THE ROAD MAP.

26 Photosynthesis 5 minutes

27 Answer the bellwork question:
Exit ticket Answer the bellwork question: Write a paragraph answering the essential question: How do organisms convert sunlight into chemical energy?


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