photosynthesis photosynthesis grade 7 th anderson grade 7 th anderson
TRANSCRIPT
PhotosynthesisPhotosynthesis
Grade 7th
Anderson
Grade 7th
Anderson
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”
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.
What is photosynthesis?
• Plants’ leaves contain chlorophyll
• Chlorophyll (green color) makes photosynthesis possible
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 .
Photosynthesis Equation
The chlorophyll absorbs the sunlight.
The sunlight is combined with water, Carbon Dioxide and nutrients from the soil.
CO2
The chlorophyll processes the ingredients and makes sugarsugar (plant food) and oxygen.
SugarSugar + Air
O2
Plants and animals need each other to survive.
Animals including humans make the CO2 (carbon dioxide) plants need.They (the plants) make the O2 (oxygen) and food we need.
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: C6H1206 + 6 O2 -------- 6 CO2 + 6 H20
2 Types:
1.Lactic Acid Fermentation
2.Alcohol Fermentation
Where it occurs?
Chloroplast of plant cell (chlorophyll)
Where it occurs?
Mitochondria of plant and animal cell
Where it occurs?
Cytoplasm of plant and animal cell
Reactants = Products
H2O+CO2=C6H1206+O2
Water+Carbon Dioxide=
Glucose+Oxygen
Reactants = Products
C6H12O6+O2=H2O=CO2
Reactants = Products
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
T.O.D
• What is photosynthesis?
A. The process by which plants make food.
B. The process through which cells obtain energy
C. The process through which the Sun transmits energy.
D. The process through which cells grow and divide.
• Photosynthesis takes place in
A.NucleiB.VacuolesC.ChloroplastsD.mitochondria
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.
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.
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.
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.
Cellular Respiration Chemical Equation
Notice any thing about equation? It is the exact opposite of
photosynthesis
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: C6H1206 + 6 O2 -------- 6 CO2 + 6 H20
2 Types:
1.Lactic Acid Fermentation
2.Alcohol Fermentation
Where it occurs?
Chloroplast of plant cell (chlorophyll)
Where it occurs?
Mitochondria of plant and animal cell
Where it occurs?
Cytoplasm of plant and animal cell
Reactants = Products
H2O+CO2=C6H1206+O2
Water+Carbon Dioxide=
Glucose+Oxygen
Reactants = Products
C6H12O6+O2=H2O=CO2
Reactants = Products
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
Fermentation
• Another way organisms break down food molecules to release stored energy is called fermentation.
• Process of obtaining energy without using oxygen.
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.
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.
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: C6H1206 + 6 O2 -------- 6 CO2 + 6 H20
2 Types:
1.Lactic Acid Fermentation
2.Alcohol Fermentation
Where it occurs?
Chloroplast of plant cell (chlorophyll)
Where it occurs?
Mitochondria of plant and animal cell
Where it occurs?
Cytoplasm of plant and animal cell
Reactants = Products
H2O+CO2=C6H1206+O2
Water+Carbon Dioxide=
Glucose+Oxygen
Reactants = Products
C6H12O6+O2=H2O=CO2
Reactants = Products
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
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
Guided/Independent Practice
• Photosynthesis Reinforcement Worksheet
• Put your name on the paper• Lets do the first one together.• Turn in when finished
T.O.D
1. Which of these is required for cellular respiration?
A. Carbon dioxideB. WaterC. OxygenD. 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