1. Photosynthesis
Grade 7th
Anderson

2. Daily E.Q- How do cells use nutrients to carry out life’s processes?
Create word splash with what you already know about the word “Photosynthesis”

3. Photosynthesis Share examples of photosynthesis on white board.
What is it?
The process through which green plants and some other organisms use the energy of the sunlight to make food
Also the process through which carbon dioxide and water is used to produce glucose and oxygen.

4. What is photosynthesis?
Plants’ leaves contain chlorophyll
Chlorophyll (green color) makes photosynthesis possible

5. Photosynthesis
Cells need energy to live, grow, and reproduce. For most cells, that energy comes from the Sun.
Photosynthesis occurs in stages, but the overall equation is summarized on the next slide .

6. Photosynthesis Equation

7. The chlorophyll absorbs the sunlight.

8. The sunlight is combined with water, Carbon Dioxide and nutrients from the soil.

9. The chlorophyll processes the ingredients and makes sugar (plant food) and oxygen.
Sugar + Air O2

11. Plants and animals need each other to survive.

12. Animals including humans make the CO2 (carbon dioxide) plants need
Animals including humans make the CO2 (carbon dioxide) plants need. They (the plants) make the O2 (oxygen) and food we need.

13. Photosynthesis Cellular Respiration Fermentation
Def.- Process by which plants capture light energy from sun and convert it into sugar
Def. Process of producing ATP energy in the cell from oxygen and glucose: releases carbon dioxide and water.
Def. The breakdown of sugars to make ATP energy in the absence of oxygen (anaerobic respiration).
Formula:
6 CO2 + 6 H2O + sunlight----- C6 H12 O6+ 6 O2
Formula: C6H O CO2 + 6 H20
2 Types:
Lactic Acid Fermentation
Alcohol Fermentation
Where it occurs?
Chloroplast of plant cell (chlorophyll)
Mitochondria of plant and animal cell
Cytoplasm of plant and animal cell
Reactants = Products
H2O+CO2=C6H1206+O2
Water+Carbon Dioxide=
Glucose+Oxygen
C6H12O6+O2=H2O=CO2
Glucose+ADP=Lactic Acid+ATP
(lactic acid fermentation)
Glucose+ADP=lactic acid+ethanol+CO2+ATP
(alcohol fermentation)
How is it related to cellular respiration? Opposite process
How is it related to photosynthesis? Opposite process
How is it related to cellular respiration? All living things use both processes to release energy stored in food and produces waste.
Energy Source: SUN Users- plants and plant-like protists
Energy Source: Food- All living things breathe!
Energy Source: Food- Users-Consumers. Foods made: Bacteria and yeast

14. Animations
Holt Science Bookhttp://

15. T.O.D Photosynthesis takes place in Nuclei Vacuoles Chloroplasts
What is photosynthesis?
The process by which plants make food.
The process through which cells obtain energy
The process through which the Sun transmits energy.
The process through which cells grow and divide.
Photosynthesis takes place in
Nuclei
Vacuoles
Chloroplasts
mitochondria

16. Bell ringer Make a list of the reasons why a cell might need energy.
Remember there are many types of cells doing many different jobs.

17. Cellular Respiration
The food you eat has to be broken down so that the energy it contains can be converted into a form your cells can use.
All organisms break down food molecules in order to release the stored energy.
One way uses oxygen and is called cellular respiration.

18. Cellular Respiration What is it?
The process through which glucose is broken down in the presence of oxygen to produce carbon dioxide and water; the process through which cells break down simple food molecules to release stored energy.

19. Cellular Respiration
Plants store energy in the food they produce through photosynthesis. Plants and organisms get energy from the food that plants make.
To get this energy cells break down simple food molecules to release stored energy in the cellular respiration process.

20. Cellular Respiration Chemical Equation
Notice any thing about equation?
It is the exact opposite of photosynthesis

21. Photosynthesis Cellular Respiration Fermentation
Def.- Process by which plants capture light energy from sun and convert it into sugar
Def. Process of producing ATP energy in the cell from oxygen and glucose: releases carbon dioxide and water.
Def. The breakdown of sugars to make ATP energy in the absence of oxygen (anaerobic respiration).
Formula:
6 CO2 + 6 H2O + sunlight----- C6 H12 O6+ 6 O2
Formula: C6H O CO2 + 6 H20
2 Types:
Lactic Acid Fermentation
Alcohol Fermentation
Where it occurs?
Chloroplast of plant cell (chlorophyll)
Mitochondria of plant and animal cell
Cytoplasm of plant and animal cell
Reactants = Products
H2O+CO2=C6H1206+O2
Water+Carbon Dioxide=
Glucose+Oxygen
C6H12O6+O2=H2O=CO2
Glucose+ADP=Lactic Acid+ATP
(lactic acid fermentation)
Glucose+ADP=lactic acid+ethanol+CO2+ATP
(alcohol fermentation)
How is it related to cellular respiration? Opposite process
How is it related to photosynthesis? Opposite process
How is it related to cellular respiration? All living things use both processes to release energy stored in food and produces waste.
Energy Source: SUN Users- plants and plant-like protists
Energy Source: Food- All living things breathe!
Energy Source: Food- Users-Consumers. Foods made: Bacteria and yeast

22. Fermentation
Another way organisms break down food molecules to release stored energy is called fermentation.
Process of obtaining energy without using oxygen.

23. Fermentation
One type of fermentation occurs in muscle cells after strenuous activity. During activity the muscle cells uses up oxygen faster than it can be replaced.
In order to obtain energy, the cells conduct lactic acid fermentation.

24. Fermentation
Another type of fermentation occurs in yeast and some other unicellular organisms that break down sugars. This type is known as alcohol fermentation because alcohol is produced in the process.

25. Photosynthesis Cellular Respiration Fermentation
Def.- Process by which plants capture light energy from sun and convert it into sugar
Def. Process of producing ATP energy in the cell from oxygen and glucose: releases carbon dioxide and water.
Def. The breakdown of sugars to make ATP energy in the absence of oxygen (anaerobic respiration).
Formula:
6 CO2 + 6 H2O + sunlight----- C6 H12 O6+ 6 O2
Formula: C6H O CO2 + 6 H20
2 Types:
Lactic Acid Fermentation
Alcohol Fermentation
Where it occurs?
Chloroplast of plant cell (chlorophyll)
Mitochondria of plant and animal cell
Cytoplasm of plant and animal cell
Reactants = Products
H2O+CO2=C6H1206+O2
Water+Carbon Dioxide=
Glucose+Oxygen
C6H12O6+O2=H2O=CO2
Glucose+ADP=Lactic Acid+ATP
(lactic acid fermentation)
Glucose+ADP=lactic acid+ethanol+CO2+ATP
(alcohol fermentation)
How is it related to cellular respiration? Opposite process
How is it related to photosynthesis? Opposite process
How is it related to cellular respiration? All living things use both processes to release energy stored in food and produces waste.
Energy Source: SUN Users- plants and plant-like protists
Energy Source: Food- All living things breathe!
Energy Source: Food- Users-Consumers. Foods made: Bacteria and yeast

26. Summary
Photosynthesis, cellular respiration, and fermentation are processes necessary for the survival of organisms.
Cells need to be supplied with the food produced during photosynthesis. They need to remove wastes produced during cellular respiration

27. Guided/Independent Practice
Photosynthesis Reinforcement Worksheet
Put your name on the paper
Lets do the first one together.
Turn in when finished

28. T.O.D 1. Which of these is required for cellular respiration?
Carbon dioxide
Water
Oxygen
Light
2. Fermentation differs from cellular respiration in that it
Results in the production of sugar
Takes place without oxygen
Breaks down sugars in cells
Occurs only in plant