photosynthesis & energy. plants also known as producers – autotrophs make their own food...
TRANSCRIPT
Photosynthesis & Energy
PLANTSalso known as
Producers – Autotrophsmake their own food
throughPHOTOSYNTHESIS
6H2O + 6CO2 C6H12O6 + 6O2
Reactants products
Plants use reactants to make sugar for energy and growth
Conservation of mass: reactants are not destroyed, just change form
Plants get….Water from the soil through
roots&
CO2 from the air through leaves
to make glucose
Check yer understanding….
Plants are called producers…why?Where do producers get their energy from?What is a synonym for producer?What are the REACTANTS in photosynthesis?What are the PRODUCTS in photosynthesis?Where do plants get water from?What sugar do plants make?What is the chemical formula for glucose?
ATP (Adenosine
triphosphate)is the energy used
by living cells
ATP three phosphates bound
together
P~P~P
Energy is stored in the bonds
When a phosphate is losta great amount
of energy is releasedand becomes
ADP(adenosine diphosphate)
ATP releases P = ADP
ATP is like a rechargeable batteryADP is like a dead battery
Check yer understanding….
What is your cell’s “energy molecule” called?
Where is the energy in ATP stored?What is the ultimate source of all energy
on earth?How is ATP’s energy released?
Photosynthesis is
Production of chemical energy
(ATP)
from light energy
Photosynthesis
takes place in chloroplastscontaining pigment
chlorophyll
PhotosynthesisHas 2 reactions
One requires lightOne does not require light
Light dependent rxns makes ATP in thylakoid membrane
ATP goes to the
Light independent (dark) rxns
to make sugar in the stroma
Check yer understanding….
In what organelle does photosynthesis take place?
What are the two reactions of photosynthesis called?
In what reaction is ATP MADE?In what reaction is ATP BROKEN DOWNIn what reaction is sugar MADE?