Thursday, November 17, 2011

Make a chart of the similarities and differences between cellular respiration and photosynthesis




Cellular Respiration
Photosynthesis
Equation: 
C6H12O6 + 6 O2 = 6 CO2 + 6H2O
Equation:
6 CO2 + 6 H2O = C6H12O6 + 6 O2
Cellular respiration undergoes glycolysis, Kerb cycle, and oxidative phosphoration. 
Photosynthesis undergoes light dependent reactions and Calvin cycle.   
Glycolysis breaks glucose down to form two pyruvates, forming a net of 2 ATP and 2 NADH.
Light reactions depend on the light absorbed by the chloroplasts to initiate the reaction.  Carbon dioxide is absorbed by the stomata and water molecules are absorbed through the roots of the plant.  Under the light reactions, electrons undergo the photosystems ( I and II) and chemiosmosis.  
The goal of Kerbs cycle is to take pyruvate and put it into Kerbs cycle, producing NADH and FADH2.  There are two steps, the first is the conversion of pyruvate to Acetyl CoA, and the second step is to converse all of carbon, hydrogen, and oxygen in  pyruvate end up as CO2 and H2O.    It produces 2 ATP, 8 NADH, and 2 FADH2 per glucose molecule.
Under the Calvin cycle,  it takes 3 turns to generate one sugar.  The first step requires 7 CO2, which undergoes carbon fixation.  It requires 3 ATP and 2 NADPH per turn.  
ETC's goal is to break down NADH and FADH2, pumping H+ into the outer compartment of the mitochondria, creating a gradient which is used to produce ATP.  This produces 32 ATPs. 


In order to conserve water, there are three types of plants, C3, C4, and CAM.  (see other blog for specific difference)
Number of ATP produced:
glycolysis  2 ATP
Kerbs Cycle  2 ATP
ETC  32 ATP
NADH  2 ATP
FADH2  2 ATP
Net        36 ATP

No comments:

Post a Comment