Photosynthesis Lab Flashcards
what is photosynthesis?
process used by plants to harness energy and turn into chemical energy
photosynthesis equation
6CO2 + 12H2O + energy –> C6H12O6
What are the two stages of photosynthesis?
light depended reaction
calvin cycle
Where does photosynthesis occur?
in the chloroplast
Where does the Light Dependent Reaction occur?
thylakoid disk inner membrane
What are the three parts of the Light Dependent Reaction?
photosystem 2
electron tranpost system
and photosystem 1
Antenna Complex
it is multiple chlorophyll molecules capturing photonic energy which is sent to the reaction center
Reaction Center
gather that photonic energy given from the antenna complex and elevates/excites the electron into the electron transport system
What does the Electron Transport System generate in the Light Dependent Reaction?
through a proton gradient(chemiosmosis), a hydrogen ion is released into the thylakoid space creating an ATP molecule. that H+ ion released binds with H2O which is used by the reaction center in photosystem 2 to keep the reaction going.
In photosystem 2, the reaction center is excited by what?
the electron transfered from photosystem 1 and the photonic energy created by the antenna complex
Once the electrons are excited in photosystem 2 what molecules accept those electrons?
NADP reductase accepts those electrons which turn into NADPH (high energy electrons)
What are the end products of the Light Dependent Reaction?
ATP and NADPH
What type of plants undergo the calvin cycle normally?
C3 plants
What is the first phase of the calvin cycle?
carbon fixation
What does the 3 CO2 bind to at the beginning of the calvin cycle?
Rubisco a 5 carbon molecule
What happens to the 3-6 carbon sugar CO2 and Rubisco forms?
they are unstable so they break apart into 6-3 carbon molecules
What is the second phase of the calvin cycle?
Reduction
What is produced in the second phase: reduction of the calvin cycle?
6 G3P molecules are made due to the reduction of 6ATP into 6ADP and 6NADPH into 6NADP+
What happens to those 6 G3P molecules?
1 G3P is outputed to create glucose or other organi compounds and the 5 G3P leftover goes through phase 3 of the calvin cycle
What is phase three of the calvin cycle?
Regeneration of RuBP
What happens in phase three of the calvin cycle?
those 5 G3P are turned into 3 RuBP due to 3 ATP molecules oxidizing into 3 ADP molecules
what is the wavelength of violet
400-420
what is the wavelength of indigo
440
what is the wavelength of blue
460-480
what is the wavelength of green
500-560
what is the wavelength of yellow
580
what is the wavelength of orange
600-620
what is the wavelength of red
640-700
elodea leaf water
isotonic stays the same
distilled water with the elodea leaf
hyptonic shrink
3% of NaCl with elodea leaf
hypertonic swollen
