Biochemistry; enzymes
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Biochemistry; enzymes






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Biochemistry; enzymes Biochemistry; enzymes Presentation Transcript

  • Biochemistry/Enzymes
  • Organic Molecules• Have BOTH CARBON and HYDROGEN together in the molecule (C/H) Ex: Carbohydrates, Lipids, Proteins
  • Inorganic Molecules• Do NOT have CARBON and HYDROGEN together in molecule Ex: Water, Carbon Dioxide, Oxygen
  • Most Common Elements• The most common elements found in the living world are Carbon, Oxygen, Hydrogen, and Nitrogen
  • Macromolecules and Building blocks Polymer (large molecule) Monomer (small building block) Carbohydrates Monosaccharides Ex: Starch Ex: glucose -end in “-OSE” Lipids Fatty Acids Proteins Amino Acids Ex: Hemoglobin, Enzymes Nucleic Acids Nucleotides, Sugars, Phosphates (DNA or RNA)The energy in bonds of the molecules is used to carry out cell and body processes
  • Enzymes• Proteins required for biochemical processes – Breakdown – Synthesis• Affect the rates of chemical reactions
  • Enzymes End in “-ASE” All enzymesAll enzymes have specificare proteins shape All enzymes are CATALYSTS
  • Molecules with Specific Shape• Enzymes• Hormones• Receptor Molecules• Antibodies – Shape influences function and interactions
  • Enzyme-Substrate Complex• Every enzyme has an ACTIVE SITE that matches exactly to a substrate
  • Factors that affect Enzyme Activity1. Temperature2. pH
  • Which of the following materials can beclassified as inorganic molecules?1. enzymes and neurotransmitters2. proteins and starches3. water and salts4. fats and waxes
  • Which of the following changes in an underwaterenvironment would have the greatest affect on therate of enzyme activity in an aquatic organism?1. temperature of the water2. number of secondary consumers in the water3. the amount of dissolved nitrogen in the water4. the concentration of glucose in the water
  • Enzymes react with specific substrates. Whichof the following statements allow them to doso?1. Enzymes are branched carbohydrates2. Enzymes have specific shapes3. Enzymes are made of fatty acids4. Enzymes change after reactions
  • Which of the following statements aboutproteins is incorrect ?1. A protein’s shape influences its function2. Amino acids bonded together result in lipids3. Protein chains are usually very long and folded4. Proteins can be used for energy when broken down
  • When plants synthesize starch, in what formwould the building blocks enter the plant cells?1. vitamins2. simple sugars3. fatty acids4. amino acids