Monday, Nov. 18
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Transcript of Monday, Nov. 18
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VIDEO CLIPBOOK ACTIVITY: INTRO TO
PHOTOSYNTHESIS
EXPLAIN SUB ACTIVITY FOR TOMORROW
Monday, Nov. 18
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Cycles in everyday life
WaterCarbonLifeNitrogenFoodLight/energy
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Text book
Page 226-228 Questions 1-2
Page 230-234 Questions 1 & 3a
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PHOTOSYNTHESIS 8 .1 /8 .2 NOTESINTRODUCE GIZMOS
GIZMO LAB
Wednesday, Nov. 20
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Energy and Life
Energy is the ability to do workForms: light, heat, and electricity. Can be
stored in chemical compounds.ATP= adenosine triphosphate
Basic energy source for all cellsADP= adenosine diphosphate
Only two phosphate groups, stores energy
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Uses
Active transport (protein pumps)Synthesis of proteinsResponses to chemical signals
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Heterotrophs and Autotrophs
Heterotrophs- obtain food by consuming other living things
Autotrophs- obtain food by making their own. Photosynthesis- convertlight energy into chemical energy
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Chlorophyll
Pigments- light-absorbing moleculesChlorophyll- pigment in plant
Absorb light in the blue-violet and red regions Reflect green light- that’s why they look green
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Chloroplasts
Chloroplasts- place where photosynthesis takes place
Thylakoids- saclike membrane, inside chloroplasts, arranged in stacks= grana
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Electrons
Light energy absorbed by chlorophyll, transferred to electrons
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Overview of photosynthesis
Reaction: 6CO2 + 6H2O C6H12O6 + 6O2
Carbon dioxide plus water, light- yields sugar and oxygen
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Light-dependent reaction
First set of reactions- require direct involvement of light and light-absorbing pigments
Uses energy from the sun to produce ATP Takes place in the thylakoid Water required as source of electrons and H ions.
Oxygen released as byproduct
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Light-independent reaction
ATP and NADPH molecules produced in the light reaction are used to produce sugars from CO2 absorbed from the atmosphere Takes place in the stroma, liquid outside the thylakoid
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REVIEW GIZMOSLEAF STRUCTURE/FUNCTION
STOMATA LAB
Thursday, Nov. 21
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Leaf Anatomy
Location of PhotosynthesisVeins- phloemand xylemGuard cells- allow CO2 in, O2
out.