Download 2.06 Introduction to Photosynthesis

Name: Ian Santiago
Date: 10/1/14.
A light-dependant reaction is the steps in
photosynthesis that convert the energy from the sun,
into chemical energy in ATP and NADPH, which gives
off oxygen.
Chlorophyll absorbs and transfers solar energy to highenergy electrons and it goes through a series of
proteins, this is called the electron transport chain.
NADP+ molecules accept high-energy electrons to form
NADPH. NADPH carries the electrons and their
energy to the next phase, the light-independent
reactions.
ATP molecules are formed due to the release of oxygen
gas and ATP transfers to the light-independent
reactions to provide energy for the next phase.
The second set of reactions in photosynthesis is
called the light-independent reaction. This reaction
uses energy converted from the light in the
beginning of photosynthesis and can be finished
without a light source.
This reaction is also known as the Calvin cycle.
The cycle uses six carbon dioxide molecules and
produces one single six-carbon glucose molecule.
ATP and NADPH provide the energy needed for
the light-independent reactions to occur and are
produced during the light-independent reactions
accure.