Презентация на тему Chemistry of life

(bioelements)

~2% S, P, Na, Cl, Ca, K, Mg, Fe

(macroelements)

~0.02% I, F, Co, Mn, Mo, B, Zn (microelements)

In very small amounts Ag, Se, Hg(ultramicroelements)

rearranged or bonds form between atoms. The formation of

bonds is termed a chemical reaction

- catabolic reactions
Hydrolysis - dehydration synthesis

physical changes to all the reactants involved. For example,

a compound may receive or donate electrons. Such reactions are known as oxidation-reduction reactions or redox reactions. The compound donating electrons is said to be oxidised while the compound accepting electrons is said to be reduced.
Ex:
C6H12O6 + 6O2 ⎯→ 6CO2 + 6H2O + Energy (Oxidation of glucose)

broken down to their monomers by catabolic reactions, most

of which result in energy release.
EX: C6H12O6 + 6O2 ⎯→ 6CO2 + 6H2O + Energy (38 ATP/686 Kcal/mol)
Anabolic Reactions
All reactions in a cell that build new molecules are known as anabolic reactions.
EX:
6CO2 + 6H2O + Light energy (686 Kcal/mol) ⎯⎯→ C6H12O6 + 6O2