Photosynthesis

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Photosynthesis

• Grade 7th
• Anderson

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Daily E.Q- How do cells use nutrients to carry
out lifes processes?

• Create word splash with what you already know
  about the word Photosynthesis

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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.

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What is photosynthesis?

• Plants leaves contain chlorophyll
• Chlorophyll (green color) makes photosynthesis
  possible

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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 .

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Photosynthesis Equation
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The chlorophyll absorbs the sunlight.
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The sunlight is combined with water, Carbon
Dioxide and nutrients from the soil.
CO2
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The chlorophyll processes the ingredients and
makes sugar (plant food) and oxygen.
Sugar Air
O2
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(No Transcript)
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Plants and animals need each other to survive.
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Animals including humans make the CO2 (carbon
dioxide) plants need.They (the plants) make the
O2 (oxygen) and food we need.
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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 Lactic Acid Fermentation 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 H2OCO2C6H1206O2 WaterCarbon Dioxide GlucoseOxygen Reactants Products C6H12O6O2H2OCO2 Reactants Products GlucoseADPLactic AcidATP (lactic acid fermentation) GlucoseADPlactic acidethanolCO2ATP (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
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Animations

• Holt Science Bookhttp//www.hrw.com/

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T.O.D

• 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

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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.

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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.

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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.

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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.

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Cellular Respiration Chemical Equation
Notice any thing about equation? It is the
exact opposite of photosynthesis
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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 Lactic Acid Fermentation 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 H2OCO2C6H1206O2 WaterCarbon Dioxide GlucoseOxygen Reactants Products C6H12O6O2H2OCO2 Reactants Products GlucoseADPLactic AcidATP (lactic acid fermentation) GlucoseADPlactic acidethanolCO2ATP (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
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Fermentation

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

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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.

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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.

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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 Lactic Acid Fermentation 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 H2OCO2C6H1206O2 WaterCarbon Dioxide GlucoseOxygen Reactants Products C6H12O6O2H2OCO2 Reactants Products GlucoseADPLactic AcidATP (lactic acid fermentation) GlucoseADPlactic acidethanolCO2ATP (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
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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

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Guided/Independent Practice

• Photosynthesis Reinforcement Worksheet
• Put your name on the paper
• Lets do the first one together.
• Turn in when finished

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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