Corrections Respiration Flashcards
Write an equation to show how ATP is synthesised from ADP
ADP + PI = ATP
Give ways in which the properties of ATP make it a suitable source of energy in biology processes
Soluble
Simple reaction involved
Energy released in small amount
Explain why it is necessary for humans to synthesise such large amounts of ATP
ATP is:
Unstable
Not able to be stored
Only released in small amounts
Explain why ATP is useful in many biological processes
Releases energy in small manageable amounts
Broken down in one step
Able to regenerate
Describe how ATP is made in the mitochondria
ATP produced in Krebs cycle
Substrate level phosphorylation
Krebs cycle reduced NAD and FAD
Electrons released when NAD and FAD reduced
Electrons pass along ETC in series of reactions
Explain why level of coloured liquid in the tube goes down
Oxygen taken in
Pressure decreases
Co2 given out
Explain what would happen to the volume of gas in the syringe if the yeast were only respiring aerobically
Volume of gas remain the same
Because
Same amount of o2 used as co2 released
Describe the part played by the inner membrane of a mitochondria in producing ATP
Electrons transferred down ETC
What stage of respiration does reduced NAD get converted to NAD
Electron carrier chain
Explain why oxygen is needed for the production to ATP on the cristae of the mitchondrion
Oxygen is final acceptor of electrons
H2O is produced
Electrons wouldn’t be able to pass through chain if oxygen wasn’t there
Which substances would have net movement into the mitochondria
Pyruvate
NADH
Oxygen
Which substances would there be net movement out of the mitochondria
H2O
ATP
CO2
Explain why glycolysis is said to involve oxidation
The removal of hydrogen
Explain why ATP is necessary for glycolysis
It actives the glucose
How many carbon atoms are there in each pyruvate ion
3
