The breakdown of large molecules by the enzymatic addition of water is an example of what kind of reaction? O 1. oxidation O 2. reduction O 3. condensation O 4. hydrolysis O 5. decarboxylation

Which statement is NOT CORRECT with regard to redox (oxidation-reduction) reactions? An electron donor is called a reducing agent. 88888 A molecule is reduced if it loses electrons. A molecule is oxidized if it loses electrons. An electron acceptor is called an oxidizing agent. Oxidation and reduction reactions always occur in pairs.

Given the active site diagram below, which circled component coordinates the cofactor? 05 02 1 5 NH 2 *H₂N. HN N NH H₂ Mn²+ Mn²+ -3

Why do some chemical reactions need to have a catalyst

Provide A, B and C in the above reaction.

The oxidation product of ketone bodies: O A. reduced sugars B. alcohols O c. Carbon dioxide D. aldehydes 36

(weak bonds) a better source of energy than H,0 (strong bonds)? 37. What is the difference between AG. AG, and AG ? Which is preferred by biochemists? 38. How can a reaction with a positive AG (like malate -> oxaloacetate) go forward in the cell? 39. Why do activated states rarely occur at physiological temperatures? How do cells overcome this? 40. What role do enzymes play in the cell with regards to chemical reactions? Can they work against tem he gen 47. What factors contribute to the stabilization of the DNA double helix? dno8 which .The r tthaei thetir e of 1 ing c must otides ore a e use st Ha veal D am clec YNT fur ap 9. to1 ab

Compare and contrast hydrolysis and dehydration reactions. A hydrolysis reaction fuses chemical bonds by adding water Hydrolysis adds one water molecule to a reaction, while a dehydration reaction removes two water molecules. Both reactions involve water molecules. A dehydrationkeaction forms sucrose by the addition of a water molecule to fructose and glucose.

Please explain with an example- 'enzymes are very powerful catalyst."

Which of the following is true of exergonic reactions? Energy of the products is lower than the energy of the reactants These reactions generally do not occur spontaneously Photosynthesis is an example Is a reaction that requires the net input of energy Energy of the products is higher than the energy of the reactants