Photosynthesis
Chloroplasts
The Interelat
Factors that Affect the Rate of Respiration
Light Dependent Stages
Uses of Triose Phosphate
Defintions
Autotroph
Hetrotroph
Photoautotroph
Chemoautotroph
Produces own found source
via light energy
Inner Memebrane
Outer Membrane
Light Independent Stages
(Calvin Cycle)
Steps
Stroma
Intergral Lamelle
Photosynthesis Definitions
These stages oocur in the thylakoid membrane
Thylakoids
Grana
Chloroplast Envelope
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Light Dependent Reactions
Light Independent Reactions
Where light is absorbed by the pigments like chlorophyll
or when a water molecule is split by photolysis
Where CO2 is synthesised into useful organic compounds
Light Independent Reactions Occurs
Light Dependent Reactions Occurs
Contain pigments Chlorophyll a and Chlorophyll b
Pigments
Chlorophyll a
Chlorophyll b
Yellow green coloured pigment
A blue green coloured pigment
TLC
Molecules of carbon dioxide react with
molecules of ribulose bisphosphate
An enzyme called rubisco catalyses this
reaction to form molecules of glycerate-3-phosphate
Glycerate-3-phosphate is reduced to molecules of triose phosphate using ATP and NADPH from the light dependent stage.
Some of the triose phosphate is used to regenerate ribulose bisphosphate by using ATP. The rest is used to produce useful organic products such as glucose.
Used to produce glucose
Used to produce cellulose
Used to produce starch
Used to produce disaccharides such as sucrose
Used ti produce lipids
Used to produce amino acids
Carbon Dioxide Concentration
Light Intensity
Temperature
Physiological
Biochemical
Physiological
Biochemical
Physiological
Biochemical
Steps
Light energy is absorbed by the pigments in photosystem II
The electrons are recieved by and electron acceptor
Electrons are passes from the electron carrier to photosystem I . The energy lost by the electron is captured and used t convert ADP into ATP. Light energy has been converted into chemical energy.
Light energy absorbed by photosystem I helps to boost the electrons to a highe energy level.
Electrons and received by the second electron acceptor
Electrons have been removed from chlorophyll are replaced by received electrons from water in the process of photolysis
Water is caused to dissociate into its protons and oxygen gas
Protons from the water molecule combine with the electrons from the second electron acceptor and reduces NADP+ to NADPH
Some electrons from second electron acceptor may pass back to chlorophyll molecule by electron carrier system.
Definitions
Cyclic
Non Cyclic
Photolysis
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