Process of Photosynthesis

1. Water absorbed by the
root of the plant.
Carbon dioxide is
absorbed. These two
substances go into the
chloroplast which is
plant cell.
Finally, oxygen are
produced
Finally, glucose are produced
The light reactions of
photosynthesis occur in the
thylakoid membranes of the
chloroplast. The light
reactions produce ATP and
NADPH. The calvin cycle takes
place in the stroma which is
in the inner space of
chloroplasts. This produces
glucose and other carbohydrate
molecules.
Location: stroma in the chloroplast
The Calvin cycle is part of the dark reaction of photosynthesis. The reaction site is the
stroma in the chloroplast. The cycle can be divided into three stages: carboxylation, reduction, and
regeneration of ribonucleotide diphosphate.
In carboxylation stages, CO2 is used for the carboxylation of RuBP. This
reaction is catalysed by the enzyme RuBisCO and it results in the formation
of two molecules of 3-PGA (3-Phosphoglyceric acid).
In the next stage is reduction. In this stage, ATP and NADPH is used to help the 3-
PGA molecules, which are created through carbon fixation, to convert into molecules of a
simple sugar ­ glyceraldehyde-3 phosphate (G3P).
The final state is regeneration of ribonucleotide diphosphate, a part of
glyceraldehyde-3 phosphate molecules are used to make glucose, whereas the others
are recycled to regenerate the five-carbon RuBP compound that is used to
accept new carbon molecules. Besides, ATP changes to ADP. So that
the cycle has energy to happen again.
Location: the chloroplast's thylakoid
membrane (photosynthetic membrane)
This is a reaction occurs in the
presence of light and is induced by
light. The light reaction begins
with the absorption of light
energy excitation by the
photosynthetic pigments in
photosystem II(PSII) and
photosystem I(PSI). Then,
light energy is used to split
water to form oxygen, hydrogen
and electron are released. Besides,
water is used as a reducing agent that
provides H+ ions to convert NADP to NADPH. Finally, H+
ions are used during ATP synthase to produce ATP.
Nathanael Freya Will
Equation of Photosynthesis
Photosynthesis is the process from plants to produce oxygen
and sugar by using sunlight, water and carbon
dioxide.Photosynthesis takes place in the chloroplasts in
plants. Chloroplasts contain the chlorophyll.
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