energy in the cell how do cells get, use, and transform energy?
TRANSCRIPT
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Energy in the Cell
How do cells get, use, and transform energy?
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Shows the flow/transfer of energy
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How important is energy to cells?
• Cells need energy to carry out all functions including…– Metabolism, active transport, cell
division, movement of cilia and flagella
• What are some things that you / your cells need energy for?
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Where does all of the energy available to organisms come from?
84,000,000,000,000 watts of power reaches the earth from the sun every day
That is A LOT!!!!
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SUN
Shows the flow/transfer of energy
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Where do all of these plants get their energy from???
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Plants, algae, and some bacteria all use photosynthesis
• What is photosynthesis?
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Photosynthesis • Photosynthesis uses the energy of the sun
to build sugar (glucose) from CO2 and Water
• This occurs in the chloroplast
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SUNLIGHT
GLUCOSE
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Photosynthesis
Sugar (glucose)
SUN
Photosynthesis
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So…after plants make their food (glucose), what do they do with it?
• Remember what carbohydrate polymers are made from?
• SUGAR!!!
• Glucose and other simple sugars are used by the plants to build plant parts – Ex: leaves, stem, wood, roots, fruit,
tubers (potatoes)
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- Glucose
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Glucose
Photosynthesis
SUN
Photosynthesis
Glucose (sugar)
Stored as Plant Parts (tissues)
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Cellular Respiration• Cellular respiration is the process of
making energy in the form of ATP from sugar (glucose)
GLUCOSE ATP (ENERGY)
• This occurs in the mitochondria of ALL eukaryotic cells – That means plants and animals!!!
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SUN
Photosynthesis
Glucose (sugar)
Stored in Plant Parts (tissues)
Cellular Respiratio
n
ATP (Energy
)
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So, how do we get energy from plants
• After we digest the plants (plant tissues Glucose), we use CELLULAR RESPIRATION to make ATP using glucose
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SUN
Photosynthesis
Cellular Respiratio
n
Glucose (sugar)
Stored in Plant Parts (tissues)
ATP (Energy
)
Cellular Respiratio
n
ATP (Energy
)
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The Photosynthesis Equation
Plants take in water (H2O), Carbon Dioxide (CO2), and Sunlight to build Glucose (C6H12O6), releasing O2 (as a waste product (Oxygen).
______ + _______ +____________ ________ + _________
Reactants (what goes in)
Products (what comes
out)
What are the reactants and the products?
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The Photosynthesis Equation
6 H2O + 6 CO2 + Sunlight C6H12O6 + 6 O2
Reactants (what goes in)
Products
(what comes out)
+ + +
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The Cellular Respiration Equation
To perform cellular respiration, plants and animals break down glucose (C6H12O6) using Oxygen (O2). This produces water (H2O), Carbon Dioxide (CO2), and ATP (energy)
______ + _______ + ________ + _________ + __________
Reactants (what goes in)
Products (what comes
out)
What are the reactants and the products?
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The Cellular Respiration Equation
C6H12O6 + 6 O2 6 CO2 + 6 H2O + ATP
Reactants (what goes in)
Products
(what comes out)
+ ++
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Cellular Respiration is the Reverse of Photosynthesis
6 H2O + 6 CO2 + Sunlight C6H12O6+ 6 O2
C6H12O6 + 6 O2 6CO2 + 6 H2O + ATP