Q. what is the equation for photosynthesis?
6CO2+12H2O+light energy -> C6H12O6+6O2+6H2O
Q. what is the major difference C4 plant from C3 plants?
Q. what is the major difference C4 plant from C3 plants?
The C3 plant is usual plant which make 3-phosphoglycerate
but C4 plant produces 4-phosphglycerate
Q. what is the reason that photosystem 2 is the first step than photosystem 1?
it is because scientists found photosystem 1 first then realize there is before step that photosystme had to go through thats why they named after photosystme 1 even though photosystem 2 is not second step.
5 facts
1.Plants need only light energy, CO2, and H2O to make sugar.
2.The stomates are holes which occur primarily in the lower epidermis and are for air exchange: they let CO2 in and O2 out.
3.Chlorophyll looks green because it absorbs red and blue light, making these colors unavailable to be seen by our eyes. It is the green light which is NOT absorbed that finally reaches our eyes, making chlorophyll appear green.
4.The overall chemical reaction involved in photosynthesis is: 6CO2 + 6H2O (+ light energy) 
C6H12O6 + 6O2. This is the source of the O2 we breathe, and thus, a significant factor in the concerns about deforestation.
C6H12O6 + 6O2. This is the source of the O2 we breathe, and thus, a significant factor in the concerns about deforestation. 5.The dark reaction takes place in the stroma within the chloroplast, and converts CO2 to sugar.
key terms
1. photosynthesis
from the sun and convert it to chemical energy stored in sugar and other organic molecule
2.autotorphs
"self-feeders" they sustain themselves without eating anything derived from other living beings.
3. heterotrophs
unable to make their own food, they live on compounds produced by other organisms.
4.chlorophyll
the color of the leaf, the green pigment located within chloroplasts
the color of the leaf, the green pigment located within chloroplasts
5.stomata
carbon dioxide enters the leaf, and oxygen exits, by way of microscopic pores
6.thylakoids
an elaborate system of interconnected membranous sacs
7.NADP+
light absorbed by chlorophyll drives a transfer of the electrons and hydrogen ions from water to an acceptor called
8.photophoshorylation
the light reactions also generate ATP, using chemiosomosis to power the addition of a phosophate group to ADP
9.carbon fixation
incorporating CO2 from the air into organic molecules already present in the chloroplast, this initial incorporation of carbon into organic compound called
10.wavelength
the distance between the crests of electronmagnetic waves
diagram
this diagram explains about the process of photosynthesis in the leaf. First when the photon was absorbed by chlorophyll is used to split water into hydrogen and oxygen. Oxygen is released as by-product. Photolysis produces energy which is used in the Calvin cycle that follows. The energy is temporarily stored in ATP and NAD PH2 molecules.
video
http://www.youtube.com/watch?v=hj_WKgnL6MI
summary
All organisms require energy in order to stay alive. Energy is utilised to do the various bodily functions such as breathing, ingesting and digesting food, excreting, reproducing, locomotion, etc. Energy is obtained from food. Thus the process of intake of food is vital for the survival of an organism as it provides energy. This intake of food is called nutrition.
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