Photosynthesis Flashcards
(25 cards)
Chemical formula for photosynthesis
6 CO2+ 6 H2O -> C6H12O6 + 6 O2
CO2 enters through the
Stomata
EMR (electromagnetic radiation) occurs in the form of energy called
Photons
Short wavelength=
High energy
Longs wavelength=
Low energy
What is the pigment that transfers energy from the sun to photosynthesis
Chlorophyll A
Accessory pigments
Chlorophyll B & other carteniods
Flattened disc called ____ in the chloroplasts stack to make ______
Thylakoids
Granum
Thylakoids membranes enclose and interior, water-filled space called the
Thylakoid lumen
Surrounding the thylakoids is the fluid
Stroma
Where sugars are made
Stroma
Active transport of ions & molecules across cell membrane
ATP (adenosine triphosphate)
Donates electrons to other molecules to become NADP+
NADPH
2 phases of photosynthesis
Light dependent
Light independent
- requires photons and chlorophyll
- occurs in the thylakoids membrane
- PS1 & PS2
Light dependent reactions
- CO2 is incorporated to make glucose
- occurs in the stroma
- uses ATP and high energy electrons from NADPH
Light independent reactions
A water molecule is split using solar energy
Photolysis
Cluster of photosynthetic pigments embedded in the thylakoid membrane of a chloroplast
PS1 & PS2
Formed from ADP +P
ATP
Calvin cycle is
Light independent
3 phases of the Calvin cycle are
- Fixation of CO2
- Reduction
- RuBP replacement
For every 6 G3P molecules synthesized how many leave the chloroplasts to make glucose
1
The function of the Calvin cycle is
Use ATP and NADPH from light dependent reactions and CO2 to form useful carbohydrates
The raw materials needed for photosynthesis are
Water and carbon dioxide
