1. PHOTOSYNTHESIS
EL REDIN SCHOOL
SCIENCE
YEAR 5
MADE BY MR. FELIPE

2. WHAT IS
PHOTOSYNTHESIS?
Itistheprocesswhichenablesplantstomakefoodfrom:

3. • Water
• Carbondioxide
• Sunlight

4. WHERE DOES IT TAKE PLACE?
• Photosynthesistakes place in
theleavesandothergreenplantcells

5. HOW DOES PHOTOSYNTHESIS WORK?
(thephotosynthesisprocess)
• Step 1: Mineralsfromthesoildissolve in water
Minerals + water = RAW SAP

6. • Step 2: plantsabsorbtheRAW SAP
fromthesoilthroughtheirROOTS andROOT HAIRS

7. • Step 3: theRAW SAP travels up theSTEM totheLEAVES
through
long tubescalledXYLEM VESSELS

8. • Step 4: CARBON DIOXIDE
enterstheplantthroughtinyporesontheundersurface
oftheLEAVEScalledSTOMATA

9. • Step 5: insidetheLEAVES, theRAW SAP mixes
withtheCARBON DIOXIDE
andbecomesGLUCOSE.
CHLOROPHYLL is a greensubstance in
.
theleaveswhich traps SUNLIGHT.
Sunlightisesentialforphotosynthesis, so itonlytakes
place duringtheday.

10. • Step 6: GLUCOSE isdistributedfromtheLEAVES
toallpartsoftheplantthroughtubescalledPHLOEM
VESSELS.
Plantsgive off OXIGEN as a
wasteproductofphotosynthesis

11. RESPIRATION
• PlantstakeOXYGENfromtheairandgive off CARBON
DIOXIDE. They combine
OXIGENwithnutrientstogetenergy.
• This gas exchangeiscalledRESPIRATION. Ittakes place
in theleaves ALL THE TIME, dayand night

12. RESPIRATION
• Plants produce more oxygenthanthey use. As a result,
forestsandjungles are importantforus as
sourcesofoxygen