Monday, July 30, 2018

ATP- biological currency

(https://www.britannica.com/science/cellular-crespiration)

     Have you every found yourself completely drained of every ounce of energy?  You needed a healthy snack.  

     We can stay energized and keep our bodies energized. Cellular respiration yields ATP.

   Cellular respiration is important because it provides the energy for living organisms to perform all of the other necessary functions to maintain life.  Our energy currency is ATP.  

     How is ATP made?

     ATP is composed of Adenosine tri-phosphate-
a compound consisting of an adenosine molecule bonded to three phosphate groups, present in all living tissue. The breakage of one phosphate linkage (to form adenosine diphosphateADP ) provides energy for physiological processes such as muscular contraction.

     ATP is composed of Adenosine-
Adenosine is a nucleoside that is composed of Ademine and D-ribose. Adenosine derivatives play many important biological roles in addition to being components of DNA and RNA. Adenosine is a neurotransmitter.

     ATP contain Phosphate.  A phosphate can be grouped as any of numerous chemical compounds related to phosphoric acid (H3PO4). One group of these derivatives is composed of salts containing the phosphate ion (PO43−), the hydrogen phosphate ion (HPO42−), or the dihydrogen phosphate ion (H2PO4−), and positively charged ions such as those of sodium or calcium. A second group is composed of esters, in which the hydrogen atoms of phosphoric acid have been replaced by organic combining groups such as ethyl (C2H5), or phenyl (C6H5).

     Energy is formed through an ATP reaction. 

     ATP Hydrolysis-
Adenosine triphosphate is composed of the nitrogenous base adenine, the five-carbon sugar ribose, and three phosphate groups.ATP is hydrolyzed to ADP in the reaction ATP+H2O→ADP+Pi+ free energy.  The calculated ∆G for the hydrolysis of 1 mole of ATP is -57 kJ/mol.ADP is combined with a phosphate to form ATP in the reaction ADP+Pi+free energy→ATP+H2O.The energy released from the hydrolysis of ATP into ADP is used to perform cellular work, usually by coupling the exergonic reaction of ATP hydrolysis with endergonic reactions.Sodium-potassium pumps use the energy derived from exergonic ATP hydrolysis to pump sodium and potassium ions across the cell membrane while phosphorylation drives the endergonic reaction.

     Cellular respiration is supported by several key reactions:

Tricarboxylic acid cycle
Glycolysis
Aerobic oxidation
Glyoxylate cycle
Reductive tricarboxylic acid cycle
Pasteur effect
Energy flow
Catabolism

     The Human body goes through thousands of bodily processes, a day.

     Cellular respiration is vital.  This biological pathway provides the energy for humanity to perform all of the necessary functions to cellular life.

     Our energy currency is ATP.