AGENDA
-Quick Review
-Photosynthesis: Making and Storing Energy
-At the end of this presentation, students are expected to be able to:
1. Describe how structures in plant cells function in photosynthesis.
3 Explain that plant cells produce and store energy for the entire plant.
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4. Describe the levels of organization in an organism.
Discussion Questions to complete before class:
“Why do we get hungry?”
“Do plants need energy as well?
Photosynthesis: Making and Storing Energy
Thinking Back…
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
-What’s cellular respiration?
• The aerobic process by which living
cells break down glucose molecules,
release energy, and form molecules of
ATP.
• Oxygen and glucose to carbon dioxide
and water, thereby yielding energy.
Hint!:

-What organelle produces ATP via this process?
• Mitochondrion – The Powerhouse of
the Cell!
Discussion Questions:
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Why do we get hungry?
Do plants need energy as well?
http://annex.exploratorium.e
du/imaging_station/gal_medi
a/plants/elodea/elodea.mov
Plant zCell Structure
-Cells have Organelles
-Organelle: a small structure in a cell that
has a specific function
- The Organelle responsible for
Photosynthesis is Chloroplast
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PREDICT: Which plant cells would have
the most chloroplasts?
• leaf cells
• cells from the stem
• root cells
*explain your reasoning!
Plant Cell Structure Continued…
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• Chloroplast – organelle responsible for photosynthesis
• Chlorophyll – Green pigment found in chloroplasts
*A leaf is considered an
organ of the plant due to
it being made up of
several types of tissues.
Elodea Leaf (Waterweeds)
Elodea plant: organelle, cell, tissue, organ, and organism.
Smaller
Larger
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Organization
of Organisms
Photosynthesis
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• Energy powers life processes.
• Living things obtain energy from the food that they eat.
• In the case of plants, they produce their own food.
• Important:
• The Sun is the ultimate source of energy for living things on Earth.
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• Living things that can use the Sun to make their own food can carry
out photosynthesis.
• Photosynthesis, means “made by light.”
• Food that plants make supplies them with energy and it also becomes a source
of energy for the living things that eat the plants.
• Chlorophyll captures energy from the Sun and the plant turns it into food in the
form of glucose, a type of sugar.
What would happen without plants on Earth?
Online Class Activity!
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Instructional Steps:
1. Get 5 slips of paper
2. Label each paper:
• Oxygen
• Sunlight Energy
• Glucose (sugar)
• Water
• Carbon Dioxide
3. Write down the following equation in your notes:
4. WAIT FOR FURTHER INSTRUCTION!
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Photosynthesis
Equation
Photosynthesis
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Cellular Respiration
Photosynthesis vs. Cellular Respiration
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1.
Plant Cell
2. Products: Carbon Dioxide and
Water
3. Organelle: Mitochondria
Photosynthesis
1. Plant Cell
Cellular Respiration
4. Animal Cell
4. Animal Cell
5. Reactants: Carbon Dioxide and
Water
5. Reactants: Carbon
Dioxide and Water
6. Organelle: Chloroplast
7. Reactants: Glucose and
Oxygen
8. Products: Glucose
and Oxygen
The product of
Photosynthesis,
are the reactants
of Respiration.
The equations are
the same but the
opposite of each
other. All of life
depends on each
other for survival.
7. Reactants: Glucose
and Oxygen
2. Products: Carbon
Dioxide and Water
8. Products: Glucose and Oxygen
6. Organelle:
Chloroplast
3. Organelle:
Mitochondria
Exit Slip
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• Discussion
• What is the powerhouse of the cell?
• What’s one thing you learned from this lesson?
• Complete the Exit Ticket assignment as homework for assessment (Due next class)