Oxygen: Friend or Foe Flashcards
What does cyanobacteria do?
Use the energy of sun to drive photosynthesis releasing O2
What bonds does ATP have between the phosphate?
Phosphoanhydride bonds
What is ATP used for?
Transport- moving substances across cell membrane
Mechanical work- energy for muscle contraction
Chemical work- energy to synthesize macromolecules
Which organ uses the most energy?
Liver
Which organ uses the least energy?
Heart
What is a reducing agent?
Chemical that supplies electrons
What is a oxidising agent?
Chemical that accepts electrons?
What is glycogenesis?
Converts glucose-6-phosphate to glycogen
What is glycogenolysis?
Break down of glycogen to glucose
Anaerobic respiration steps
Goes through glycolysis
Pyruvate converted to lactate using lactate dehydrogenase
Lactate (lactic acid) go to the liver to produce glucose
A net of how many ATP, Pyruvate and molecules of NADH are produced in glycolysis?
2 ATP, 2 molecules of pyruvate, 2 molecules of NADH
What are the steps of glycolysis?
1) Phosphate from molecule of ATP added to glucose= glucose-6-phosphate
2) Rearranged to fructorse 6-phosphate
3) Second phosphate provided from ATP to form fructose 1,6-biphosphate
4) Split into 2 molecules of gluceraldehyde 3-phosphoglycerate
5) Oxidation of each = 1,3-bisphosphoglycerate
6) High energy phosphate removed = 3-phosphoglycerate
7) Each oxidised to form phosphoenolypyruvate
8) ATP and pyruvate formed by phosphate removal
What occurs in the link reaction?
Pyruvate oxidised and converted to Acetyl-CoA
NADH produced and CO2 produced
Where does links reactiion occur
Mitochondrial matrix
How many CO2 produced in links reaction from the glucose?
1 CO2 for each pyruvate
So 2 CO2
