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Module 3 ­ Photosynthesis
Autotroph ­ Autotroph are organisms that can synthesise complex molecules like carbohydrates,
lipids, proteins, nucleic acid and vitamins from inorganic molecules as a source of energy. They also
use light energy and chemical energy. Heterotroph ­ are organisms that ingest and digest complex
organic molecules, to…

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In the light-independent stage which is the Calvin cycle, CO2 enters the leaf via the stomata and
diffuses into the stroma of the chloroplast. The carbon dioxide binds with a 5 carbon molecule of
ribulose biphosphate and produces an unstable 6 carbon molecule. This reaction is catalysed by
the enzyme…

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