Unit II test Flashcards
What plant pigments are involved in photosynthesis?
RuBP = is a special pigment that absorbs light
Photosynthesis Equation
6CO2 + 6H2O → C6H12O6 + 6O2
What wavelengths are the most effective for photosynthesis?
Action spectra confirms that light in blue and purple wavelengths are the most effective for photosynthesis.
what are the order of process that occur in the Calvin cycle?
1.) Carbon Fixation
2.) Reduction
3.) Regeneration
In what organelle of a plant cell does photosynthesis take place?
The chloroplasts
What are the two stages of photosynthesis?
The Calvin cycle and The Light cycle
Where does the Calvin cycle occur in the chloroplast?
The Calvin cycle occurs in the stroma of the chloroplast.
Where does the Light Reaction occur in the chloroplast?
The light reaction occurs in the thylakoid membrane.
Is this oxidation or reduction?
1.) gain of oxygen
2.)gain of hydrogen
3.)gain of electrons
Reduction
Is this oxidation or reduction?
1.)loss of oxygen
2.)loss of hydrogen
3.)loss of electrons
Oxidation
What are the two sources of atmospheric Nitrogen?
Biological decay and Ocean
What is the major source of CO2 that enters the atmosphere?
The main human activity that emits CO2 is the combustion of fossil fuels (coal, natural gas, and oil) for energy and transportation.
Which cycle is dependent upon activity of bacteria?
Nitrogen Fixation
What is hypoxia?
When there low oxygen levels due to eutrophication.
What us eutrophication?
When there is an excessive amount of minerals and nutrients, leading to a growth explosion.
