Respiration (cellular) Respiration (cellular) Process in which cells use oxygen to break Process in which cells use oxygen to break down food molecules to release energy down food molecules to release energy (ATP) (ATP)
Feb 13, 2016
Respiration (cellular)Respiration (cellular) Process in which cells use oxygen to break down Process in which cells use oxygen to break down
food molecules to release energy (ATP)food molecules to release energy (ATP)
Aerobic RespirationAerobic Respiration With oxygenWith oxygen
Chemical Equation-Chemical Equation-
CC66HH1212OO66 + O + O22 CO CO2 2 + H+ H22O + energy O + energy (ATP) (ATP)
Reactants Reactants
Glucose Glucose (C(C66HH1212OO66))• Organisms receive from carbohydrates taken Organisms receive from carbohydrates taken
inin• Product of photosynthesisProduct of photosynthesis
ReactantsReactants
Oxygen Oxygen (O(O22))• Organisms receive from their environment, Organisms receive from their environment,
air, water, soilair, water, soil• Product of photosynthesisProduct of photosynthesis
Products-Products-
Carbon dioxideCarbon dioxide (CO(CO22))
• Released from the Released from the organism into organism into their environment, their environment, air, water, soil air, water, soil (breathing/gas (breathing/gas exchange)exchange)
Products-Products- Water (HWater (H22O)O)
• Also released from Also released from the organism into the organism into their environment their environment
Energy (ATP)Energy (ATP)
Aerobic respiration produces a total of 38 Aerobic respiration produces a total of 38 ATP for every molecule of glucose ATP for every molecule of glucose
OrganelleOrganelle
Cytoplasm Cytoplasm Mitochondria Mitochondria
Aerobic RespirationAerobic Respiration 2 step process 2 step process Step 1-Step 1- glycolysisglycolysis
Step 2- respiration Step 2- respiration
Step 1 Cytoplasm
Step 2Mitochondria
Krebs Cycle
Step 1-Step 1- GlycolysisGlycolysis
• Occurs in the cytoplasm of a cellOccurs in the cytoplasm of a cell• Does not use oxygenDoes not use oxygen• Uses 2 molecules of ATP Uses 2 molecules of ATP • Produces 4 molecules of ATP Produces 4 molecules of ATP • Net gain of 2 molecules ATPNet gain of 2 molecules ATP• Glucose broken down to produce Pyruvic Glucose broken down to produce Pyruvic
AcidAcid
Step 2- RespirationStep 2- Respiration RespirationRespiration
• Occurs in the mitochondria of the cellOccurs in the mitochondria of the cell• Involves the Krebs cycleInvolves the Krebs cycle• Involves an electron transport chainInvolves an electron transport chain• Uses oxygenUses oxygen• Produces 34 molecules of ATPProduces 34 molecules of ATP
Aerobic Respiration SummaryAerobic Respiration Summary Total process Total process
produces 38 ATPproduces 38 ATP Requires 2 ATPRequires 2 ATP Net gain of 36 Net gain of 36
ATPATP
Anaerobic Anaerobic Respiration/FermentationRespiration/Fermentation
Respiration Respiration without oxygenwithout oxygen
Anaerobic Anaerobic Respiration/FermentationRespiration/Fermentation
Requires 2 molecules of ATPRequires 2 molecules of ATP Produces 4 molecules of ATPProduces 4 molecules of ATP Net gain of 2 molecules of ATPNet gain of 2 molecules of ATP
2 Types2 Types Alcohol Alcohol
fermentation-fermentation- bakers & brewers- bakers & brewers- products are carbon products are carbon dioxide and alcoholdioxide and alcohol
Lactic acid Lactic acid fermentation-fermentation- in in muscle cells, causes muscle cells, causes soreness and fatigue soreness and fatigue in musclein muscle
Step 1 Cytoplasm GLYCOLYSIS
Step 2MitochondriaRESPIRATION
Krebs Cycle
C6H12O6
2 ATP 4 ATP
Pyruvic Acid
O2 34 ATP
H2O CO2
All Images- Clip ArtAll Images- Clip Art