Zusammenfassung der Ressource
Enzymes and Respiration
- Enzymes
- Biological Catalysts
- Amino acid chains
folded to form active site
- Involved in...
- Building large molecules from smaller ones
- Changing one molecule to another
- Breaking dow large molecues in smaller ones
- DENATURED =
Bonds broken
- Proteins
- Long chains of AMINO ACIDS
- Different Arrangements=Different Chains
- Structural Bodies of...
- Tissues
- Hormones
- Antibodies
- Catalysts (enzymes)
- Rates of Reacion
- Temperature
- Temperature
- pH
- Enzymes in Industry
- Slimming Foods
- Insomerase turns glucose into fructose
- Sweeter but less glucose
- Baby Food
- Protease breaks chains of amino acids (proteins)
- Helps the baby digest foods
- Types
- Lipase =
Breaks
down fats
- Protease =
Breaks
down
proteins
- Carbohydrase
= Breaks down
Carbohydrates
- Amylase
= Breaks
down
startch
- Aerobic Respiration
- Breaking down
foods using
oxygen to release
energy from cells
- Glucose+Oxygen =
CO2+Water(+energy)
- Mitochondria = site
- Uses of energy(products)...
- Needed by cells to carry out basic functions
- Make muscles contract for animals
- Keep constant temp in bodies
- Anaerobic Respiration
- Glucose =
Lactic Acid + (a
little energy)
- Happens when muscles
run short of oxygen
- Glucose is incompletely
broken down to lactic acid
which gradually builds up
in the muscles
- LESS energy released
- OXYGEN DEBT
- Amount of oxygen needed to
break down lactic Acid into CO2
ad water after exercise
- KEY DEFINITIONS
- Active Site=Part of enzyme molecule,
enzyme fits in
- Substrate=the substance on
which an enzyme works
- Optimum temp.=temp at
which enzyme works fastest
- Denature=enzyme loses shape of active site
when heated above 45°/exposed to extreme pH
- Bile=Helps digestion by making
tiny fat droplets so lipase can break
it down more quickly