Photosynthesis...Vocabulary • Photosynthesis –the process of capturing and transforming the...
Transcript of Photosynthesis...Vocabulary • Photosynthesis –the process of capturing and transforming the...
Photosynthesis
internal leaf structure
chloroplastsouter membrane
inner membrane
thylakoid
Plant Photosynthesis
Where does the energy come from that
sustains all life?
The Sun!!Well most of it anyway……
Plants
in
Action
Vocabulary• Photosynthesis – the process of capturing and
transforming the energy of sunlight into chemical energy sugars
• Autotrophs – capable of making food from simple inorganic substances (plants)
• Heterotrophs – organism that cannot make their own food (animals)
• Chlorophylls – Photosynthetic pigments (GREEN)
• Chloroplast – are the organelles containing photosynthetic pigments
• Thylakoids – Photosynthetic membranes found in the chloroplast
• Grana – Stacks of Thylakoids (PANCAKES)
• Stroma – Regions (space) between the grana
Chloroplast Terms
• Inner Membrane
• Outer Membrane
• Thylakoid
• Stroma
• Granum
What is photosynthesis?• The process of converting solar energy (light)
into chemical energy (glucose)
• Plants only use water (H2O) and carbon dioxide
(CO2) and light energy to create sugars
(C6H12O6) = chemical energy. (Autotroph)
• Heterotrophs then consume this sugar and
break it apart to get the chemical energy (ATP
from mitochondria) to carry out their life
processes
Photosynthesis
Carbon dioxide + water glucose + oxygensunlight
absorbed by chlorophyll
6CO2 + 6H2O + energy C6H12O6 + 6O2
Day 2 Light and Dark reactions
ATP and NADP-H
• ATP = Adenosine Triphosphate
• ADP = Adenosine Diphosphate
• NADP-H = hydrogen carrier
The 2 stages of photosynthesis
1. Light reactions
- Light reactions absorb sunlight
and convert H20 into O2
and ATP (Energy) + NADPH
2. Dark reactions
- Dark reactions uses CO2 + NADPH+
ATP(energy) to form sugars
(C6H12O6) stored chemical energy
Light rxn Dark rxn