VIDEO CLIPBOOK ACTIVITY: INTRO TO

PHOTOSYNTHESIS

EXPLAIN SUB ACTIVITY FOR TOMORROW

Monday, Nov. 18

Cycles in everyday life

WaterCarbonLifeNitrogenFoodLight/energy

Text book

Page 226-228 Questions 1-2

Page 230-234 Questions 1 & 3a

PHOTOSYNTHESIS 8 .1 /8 .2 NOTESINTRODUCE GIZMOS

GIZMO LAB

Wednesday, Nov. 20

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

Uses

Active transport (protein pumps)Synthesis of proteinsResponses to chemical signals

Heterotrophs and Autotrophs

Heterotrophs- obtain food by consuming other living things

Autotrophs- obtain food by making their own. Photosynthesis- convertlight energy into chemical energy

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

Chloroplasts

Chloroplasts- place where photosynthesis takes place

Thylakoids- saclike membrane, inside chloroplasts, arranged in stacks= grana

Electrons

Light energy absorbed by chlorophyll, transferred to electrons

Overview of photosynthesis

Reaction: 6CO2 + 6H2O C6H12O6 + 6O2

Carbon dioxide plus water, light- yields sugar and oxygen

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

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

REVIEW GIZMOSLEAF STRUCTURE/FUNCTION

STOMATA LAB

Thursday, Nov. 21

Leaf Anatomy

Location of PhotosynthesisVeins- phloemand xylemGuard cells- allow CO2 in, O2

out.

Quick video

leaf structure