Clicker Question Review Flashcards
ATP is made in what stages of cell respiration?
Glycolysis, Citric Acid Cycle, and ETC
Chemiosmosis occurs in _____
Cell Respiration(oxidative phosphorylation) and Photosynthesis(photophosphorylation).
C6H12O6 + 6O2 -> 6 CO2 +6H2O + ATP + Heat
Cell Respiration summary formula.
Reduction gains or loses an electron?
gains an electron.
Oxidation loses an electron.
Follow H atom(removed H = oxidized. Added H = reduced)
Fermenting utilizes_____
Only glycolysis.
Makes 2 ATP.
Lactic Acid Fermentation: pyruvate is converted to lactic acid regenerating NAD+ to continue glycolysis.
Alcohol fermentation: pyruvate is first converted to acetaldehyde(making CO2) and then to ethanol, regenerating NAD+
Purpose of Pre-citric acid step
converts pyruvate to acetyl Co-A required to enter citric acid cycle.
Autotrophs and producers are associated with_____
Photosynthesis.
Able to turn inorganic carbon into organic molecules(fixing carbon)
During the _____ of the light reactions, NAPDH, ATP, and O2 are produced and both photosystem I and photosystem II are used.
Non-cyclic electron flow.
Cyclic flow only PS I is used and only ATP is produced.
Oxidized, photosynthesis
NADP+
Oxidized, CR
NAD+
Reduced, CR
NADH
Reduced, CR again
FADH2
Reduced, Photosynthesis
NADPH
Where does the Oxygen we breath come from and where is it used?
Water is split during light reactions of photosynthesis.
ETC uses O2 as the final electron acceptor so that chemiosmosis can generate a H+ gradient to make ATP.
Do plants have cell respiration?
Yes.
Plants use photosynthesis to make organic molecules which can then be broken down by cell respiration to make ATP.
Fe+Cu^2+ -> Fe^2+ + Cu
who got reduced?
Cu.
Fe oxidized
Photocynthesis: Who gets reduced?
CO2 + 12H2O + Light Energy -> C6H12O6 + 6O2 + 6H2O
CO2 gaines H and thus its electrons and becomes reduced.
Water is oxidized.
Summary of cell respiration:
The oxidation of food molecules requiring oxygen to gain energy.
Do prokaryotes undergo glycolysis?
Yes. All organisms do it. Mitochondria is not required.
Does cell respiration turn oxygen into carbon dioxide?
No.
CO2 is formed from the breakdown of organic molecules such as glucose.
What is the purpose of fermentation reactions?
To regenerate NAD+ so glycolysis can continue.
What is the plants cells version of cell respiration?(photosynthesis?)
No.
Plants do cell respiration just like animals.
Over 24 hour period you measure oxygen in a lake with plants and fish.
More oxygen measured during the day than at night(photosynthesis shuts down without light)
Seeds grow by___
cell respiration NOT photosynthesis.
