Biochemistry % with correct answers

Biochemistry % What is metabolism? - correct answer The collective name for chemical reactions that occur in living organisms. What are anabolic reactions? Catabolic? - correct answer - Anabolic: larger product from simpler substances - Catabolic: simpler substances from larger product What is a metabolic pathway? - correct answer Biochemical transformation of a molecule through a series of intermediates into the final product. What is the primary element in all biologically important molecules? - correct answer Carbon. What are the four most common types of biochemical reactions? - correct answer - oxidation - reduction - hydrolisis - condensation In hydrolysis and condensation, is water a product or reactant? - correct answer - Hydrolysis (reactant) - Condensation (product) What substance begins photosynthesis and where is it stored? - correct answer - Light energy - Chlorophylls How is absorbed light used in photosynthesis? - correct answer It is used in a series of anabolic reactions that ultimately lead to reduction of CO2 into energy rich molecules like glucose. During photosynthesis, what happens if sunlight is not available? - correct answer The reduction can be reversed and energy needed for life can be produced by the oxidation of glucose in a process called aerobic respiration. Photosynthesis hydrolysis reaction: - correct answer 6CO2 + 6O2 --> C6H12O6 + 6O2 Photosynthesis condensation reaction: - correct answer C6H12O6 + O2 --> 6CO2 + 6O2 What are lipids made up of? - correct answer Fatty acids What are proteins made up of? - correct answer Amino acids linked by peptide bonds. What are nucleotides made up of? - correct answer Consist of a phosphate group, a ribose sugar group, and a nitrogenous base. What are nucleic acids made up of? - correct answer They are polymers of nucleotides. Why do biochem reactions happen in water and why are they able to. - correct answer - 65% of body mass is water - Most of the reactants, products and enzymes are water soluble so they are able to form soluble complexes with other molecules. Definition of photosynthesis - correct answer The process used by plants and other organisms to synthesize energy-rich molecules such as carbohydrates from carbon dioxide and water using light energy. What is respiration? - correct answer A complex set of reactions in which energy-rich molecules such as carbohydrates are broken down in the presence of oxygen to provide energy for cells. How are biological polymers formed? - correct answer Through condensation reactions.