University:
York University
Course:
BIOL 2020 | Biochemistry
Academic year:

2023
Views:

365

Pages:

3
Author:

Nick T.

Energy Energy Rules ATP = adenosine triphosphate Energy: Something that helps us to do Work Mechanical work muscle movement Movement of substances in blood Chemical work Synthesis of biomolecules Transport of charged ions across membranes Not all energy can be used to do work Some energy is automatically converted to heat Energy available to do work: free energy, ΔG Chemical reactions either release or absorb free energy In a favorable reaction energy released products have less energy than reactants Animals convert food into energy through the reaction pathways of metabolism In an unfavorable reaction energy absorbed products have more energy than reactants Energy Brochemical Reactions many reactions in the body are unfavorable (endorganic) require an Reversing the reactions input of energy will make them favorable (exergonia) will release energy Energy Production Organized in metabolic pathways Metabolismsum total of all chemical reactions Organism in an Catabolism breathing molecules (energy released) apart Anabolism making larger molecules (energy used/absorbed) Metabolic Pathways Linear proceeded by a series of steps to product (glycolysis pathway) ane ABC Cyclic regenerate (citric acid cycle) the original starting material CAL 0 Spinal uses to make the Same enzymes longer product molecules (Beta-oxidation of fatty acids) sequentially Σ Product Energy Production 1) Digestion (Hydralysis or Catabolism) enzymes in Saliva break down molecules 2) Acetyl-SCOA production 2 Corben stlechind te Coename 4) ATP Production Election Transport Chan electron transport Chain Ox Phos 3) Citric Acid Cycle.