B9 - Respiration Flashcards
Aerobic respiration
-glucose + o2 —> co2 + h2o
respiration type of reaction
exothermic
-transfers energy to environement
cytoplasm
-enzymes are made
-reactions of anaerobic resp occurs here
mitochondria
-contains enzymes for aerobic resp
-each enzyme has a different reaction
-folded inner membrane = large sa
nucleus
-holds genetic codes for enzymes involved in resp
Uses of respiration
-build/break down larger molecules
-make muscles contract
-maintain constant body temp
-active transport in plants
-convert sugars into amino acids = proteins
glycogen
-glucose store as a carb
When you exercise
-heart rate increases
-arteries dilate = more flow
-breathing rate increases = more o2 + removes more co2
-glycogen is converted to glucose
Anaerobic respiration
-without o2
-as blood cannot supply it fast enough
-less energy transferred
equation for anaerobic respiration
glucose —> latic acid
Balanced word equation for aerobic respiration
C6H12O6 +6O2 —>6H2o +6CO2
muscle fatigue
-build up lactic acid
oxygen debt
-o2 converts lactic acid to glucose
-so aerobic respiration can happen fully
Fermentation
glucose —> ethanol + co2
Fermentation uses
-manufacture bread
-alcoholic drinks
metabolism
-sum of all reactions that take place in cell/body
Metabolic reactions eg
-converts glucose to starch glycogen , cellulose
-formation of lipid molecules
-making proteins from glucose +ions
-respiration + photosynthesis
-Formation of urea
Liver processes
-detoxifies poisonous substances
-passing urea into blood to be removed
-breaking down old blood cell + storing the iron
Removing lactic acid in liver
-blood flows + transports lactic acid
-converted to glucose + reacts fully
-glucose can be stored as glycogen in liver
hepatic vein
-carries blood from liver to heart with food level
hepatic artery
-brings oxygenated blood to liver
hepatic portal vein
-carries blood containing digested food from intestines to liver
