color slides photosynthesis and respiration
TRANSCRIPT
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Daylight Bulb Regular Incandescent
Mercury Vapor
Low pressure sodium bulb
High Pressure sodium bulb
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Light MixingPaint Mixing
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Skin type Description
Type 1Always burns, never tans. Very fair skin with red or blond hair and freckles.
Type 2 Burns easily, tans minimally. Fair skin.
Type 3 Sometimes burns, gradually tans.
Type 4Minimum burning, always tans. White, with medium pigmentation.
Type 5Seldom burns, always tans. Medium to heavy pigmentation.
Type 6
Never burns, but tans very darkly. African Americans, Africans, or dark-skinned individuals with heavy pigmentation.
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Photosynthesis and Respiration
Photosynthesis and Respiration
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Important Vocabulary
• Photosynthesis-process in which plants use the sun to create sugar
• Chlorophyll-green pigment that absorbs the sun’s energy
• Solar-the sun
• Chloroplast- organelle in plant cells that do photosynthesis, contain chlorophyll.
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What is photosynthesis?• Photosynthesis takes the sun’s energy
and converts it to glucose (sugar).
• CO2 + H2O +light energy C6H12O6 (glucose) + 6O2
• Reactants are carbon dioxide, water and the sun’s energy
• The products are sugar and oxygen.
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The Chloroplast
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The Chloroplast
• Photosynthesis takes place in a plant’s chloroplast.
• Chloroplasts contain chlorophyll.
• Chlorophyll absorb light.
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What happens in the chloroplast?
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Chlorophyll• Chlorophyll is a green pigment that
absorbs light.• There are other pigments called
accessory pigments that help chlorophyll absorb light.
• Carotenoids are accessory pigments that are yellow, orange and brown.
• In the fall, leaves lose their chlorophyll and then the carotenoids are visible.
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Chlorophyll• Light is made of 7 different colors.
• Chlorophyll can absorb light to gain energy in the form of electrons.
• There are different kinds of chlorophyll.
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Carentoids
Flavonoids
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Important Vocabulary• Stomata- opening on the underside of
plant’s leaves that lets gases and water pass through
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Important Vocabulary• Factors affecting photosynthesis:
• Light intensity
• CO2 level
• Temperature
• If you increase these, photosynthesis increases to a certain point.
• Over that and it’s too much!
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What is Respiration?• C6H12O6 (glucose) + O2CO2+ H2O +
energy
• Aerobic Respiration is a complex process by which cells make ATP.
• Aerobic Respiration can follow two pathways depending on if oxygen is available or not.
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Glycolysis and Fermentation
• Glycolysis is a series of chemical reactions.
• Glucose is used and broken down.• Glycolysis takes place in the cytoplasm
of the cell.• 2 ATP molecules are used in glycolysis
but 4 are made for a net gain of 2 ATP.
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Glycolysis and Fermentation• If there is no oxygen (anaerobic), then
after glycolysis, fermentation occurs.
• Fermentation does NOT produce ATP but helps continue glycolysis.
• Two common fermentation pathways are lactic acid and ethyl alcohol.
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Important Vocabulary• Anaerobic- without oxygen
• Aerobic-with oxygen
• Lactic Acid Fermentation-when oxygen is depleted, muscle cells create lactic acid, creates cramps and fatigue
• Alcoholic fermentation- basis for wine and beer industry, yeast create alcohol to about 12%.
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Important Vocabulary
• Mitochondria-organelle that uses sugars and other molecules to create ATP
• Aerobic respiration-occurs in mitochondria, uses oxygen and electrons to create ATP.
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