unit 8 quiz this friday · 2. photosynthesis/ chloroplast notes (pg. 5) 3. starch production lab...
TRANSCRIPT
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Thursday, January 4
Agenda:1. Bell Work2. Photosynthesis/
Chloroplast Notes (pg. 5)
3. Starch Production Lab (pg. 9-12)
4. Complete Starch Production Lab Questions
The energy locked in the macromolecule below was formedby what reaction
_________.
Unit 8 Quiz this FRIDAY
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Class Rules
• Respect others.• Keep the room clean.• Be polite and helpful.
• No offensive language.• Keep hands, feet and objects to
yourself.
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Class Syllabus
• Grading• Absence• Make-up work• Lab Safety• Read and Sign with your parents tonight • Return Tomorrow
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Class Website
• Can get missed or lost work.• See upcoming schedules.
• Get PPTs from class.• www.lhfc.weebly.com
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1st period google classroom: 9sdbmb
4th period google classroom: 99td3j
5th period google classroom: lb3s8is
6th period google classroom: sv40b
7th period google classroom: 4xqi1pl
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Photosynthesis Song
https://www.youtube.com/watch?v=xuivYRmIACM
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Welcome back to Biology!
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Turn to page 5 of your packets.
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REVIEW: Which type of biomolecule is
STARCH? A. CarbohydratesB. LipidsC. Nucleic AcidsD. Proteins
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Where does this process occur?
LeafMesophyll Plant CellChloroplast
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→ LEAF→ MESOPHYLL
→ PLANT CELL→ CHLOROPLAST
Where does the process occur?
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Observing Stomata• Fill in the chart in your Notebook
Cactus – lives in a hot, dry environment
Stomata’s are openings in the leaf that allows gases to flow in and out of the cell.
These gases are:CO2O2H20
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Oak tree – lives in a temperate environment
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Hibiscus – lives in a rainforest
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How do CO2 and H2O get converted into sugar?• Chemical reactions occur inside plant cells!
• Where?• In the chloroplasts.
CHLOROPLAST
Chloroplasts are specialized organelles to carry out photosynthesis!
Chloroplasts contain CHLOROPHYLL (absorbs light)
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▫ Light Energy is absorbed and converted into chemical energy
Description of photosynthesis
This is a “Light- Dependent Reaction”
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Chemical Equations of photosynthesis.
Reactants ProductsWhat goes in What is made
CO2 +H2O+energy O2 +C6H12O6
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We said plants need energy from the sun. How does it get the energy?
Light energy is absorbed by chlorophyllin the thylakoid of the chloroplast.
DESCRIPTION OF THE PROCESS
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The light energy absorbed will split H20 into hydrogenand oxygen during the light-dependent reactions.
H2O
oxygen
Light reactions
NADPHATP
DESCRIPTION OF THE PROCESS
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The Calvin Cycle (Light Independent Reaction), ATP is converted into Glucose.
H2O
oxygen
Light reactions
NADPHATP
DESCRIPTION OF THE PROCESS
Calvin Cycle Glucose
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EQUATION
• How many molecules of carbon dioxide does it take to make one molecule of glucose?▫ 6
• Where is the energy stored?▫ Chemical bonds of glucose
• What are the products of photosynthesis?▫ Glucose (C6H12O6) and Oxygen (O2)
• Where does the oxygen come from?▫ Water (Tricky ☺)
• Review: What absorbs light in a chloroplast, so that Glucose can be made?
glucose
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Revisiting Stomata Questions
• Which leaf had the most stomata? Why do you think this was so?
• What gases move in and out of the leaf stomata?
• What does the number of stomata indicate about the rate of photosynthesis for a plant?