Essays Tagged: "Photosystem II"

This is an essay comparing the light and dark reactions of photosynthesis and C3 and C4 plants.

where chlorophyll and other kinds of smaller organic molecules are present. There are two types of photosystems, photo system I and photo system II. The reaction center in photo system I is knon as P ... d photo system II. The reaction center in photo system I is knon as P700 and the reaction center in Photosystem II is P680. The splitting of a water molecule is required to extract electrons for the P ...

(1 pages) 44 0 4.3 Dec/2003

Subjects: Science Essays > Biology > Plant Biology

Biology: The Light Dependent Reaction

In the Light Dependent phase of photosynthesis, light strikes Photosystem II, causing the electron to become excited. The excited electron bounces up to an electr ... lectronloses energy. The energy released is used to produce ATP. At the same time, light is hitting Photosystem I, which makes it's electron's excited. The electrons are passed to another electron acc ... cited. The electrons are passed to another electron acceptor and another ETC. The electrons leaving Photosystem I are replaced by those from Photosystem II. The electrons from Photosystem II must then ...

(1 pages) 31 0 1.8 Apr/2004

Subjects: Science Essays > Biology

Biology Lab Report on the Effects of Photosynthesis

t in the air and the water is gained from precipitation or morning dew. The water is broken down in photosystem I (sourcing invisible light of 700nm) by photolysis. This process sets free electrons an ... ost energy is gained in the first part of the light dependent stage (which creates the gradient) of photosystem II, sourcing in visible light of 680nm.There are 5 major requirements for photosynthesis ...

(5 pages) 165 0 5.0 Mar/2006

Subjects: Science Essays > Biology > Plant Biology

Photosynthesis

ion takes place in the thylakoids. In the light reaction, light energy strikes antennae pigments of photosystem II, which contains several hundred molecules of chlorophyll a and chlorophyll b. Electro ... molecules.Simultaneously, free oxygen and protons are released. The electrons then pass downhill to photosystem 1 along an electron transport chain. This generates a proton gradient that drives the sy ...

(2 pages) 21 0 0.0 Feb/2008

Subjects: Science Essays > Chemistry