Cell biology - Introduction to Enzymes, Krebs , ATP Flashcards
(34 cards)
a food molecule being oxidised in an energetically favourable reaction is what type of reaction
a. catabolic
b. anabolic
a.catabolic
a molecule available in the cell being converted a molecule needed by the cell in an energetically unfavourable reaction is what type of reaction
a. catabolic
b. anabolic
b.anabolic
catabolic + anabolic =
metabolism
the phosphate bonds in ATP are..
a. low energy
b. high energy
b.high energy
when the second phosphate is removed from ATP what is it known as?
a. ADP
b. AMP
b.AMP
Energy to add phosphates to form ATP comes from what type of reaction
a. catabolic
b. anabolic
a.catabolic
what bonds are present between the phosphate groups of ATP?
a. phosphate
b. phosphodiester
c. phosphoanyhydride
d. hydrogen
c.phosphoanyhydride
NADH is used to make ATP what group makes up the high energy linkage in this molecule
a. phosphate
b. hydrogen and e
c. acetyl
b.hydrogen and e
acetyl coA is an activated 2c acetyl unit which can be completely oxidised to what?
a. o2
b. co2
c. h2o
b. co2
complete oxidation of acetyl coA is known as
krebs cycle
What substance is produced by the oxidation of
pyruvate and feeds into the citric acid cycle?
a) pyruvate
b) glucose
c) acetyl-CoA
d) O2
e) CO2
c) acetyl-CoA
what is the net result of one krebs cycle
a. 3 NADH, 1 GTP, 1 FADH2
b. 1 NADH, 2 GTP, 3 FADH2
a.3 NADH, 1 GTP, 1 FADH2
where does oxidative phosphorylation occur?
a. inner mitochondrial membrane
b. cytoplasm
c. nucleus
d. outer mitochondrial membrane
e. crista
a.inner mitochondrial membrane
during oxidative phosphorylation electrons are shuttled from NADH to FADH2 to which substance
a. co2
b. pyruvate
c. acetyl coA
d. o2
d.o2
ATP synthase is one of the complexes catalysing oxidative phosphorylation which complex is it known as ?
a. I
b. II
c. III
d. IV
e. V
e.V
where are the protein complexes of oxidative phosphorylation found?
a. inner mitochondrial membrane
b. cytoplasm
c. nucleus
d. outer mitochondrial membrane
e. crista
a.inner mitochondrial membrane
complex I transfers electrons from NADH to CoQ and transfers protons from the matrix to the intermembrane space what is complex I?
a. NADH - coenzyme Q reductase
b. coenzyme Q reductase
c. cytochrome c oxidase
d. ATP synthase
e. succiate coenzymr q reductase
a.NADH - coenzyme Q reductase
complex III transfers e from reduced coq to cytochrome c and transfers protons from the matrix to the intermembrane space , what is complex III?
a. NADH - coenzyme Q reductase
b. coenzyme Q reductase
c. cytochrome c oxidase
d. ATP synthase
e. succiate coenzymr q reductase
b.coenzyme Q reductase
complex IV transfers e- from cytochrome C to O2 , what i complex IV?
a. NADH - coenzyme Q reductase
b. coenzyme Q reductase
c. cytochrome c oxidase
d. ATP synthase
e. succiate coenzymr q reductase
c. cytochrome c oxidase
complex V uses energy from protons flowing through it to generate ATP , what i complex V?
a. NADH - coenzyme Q reductase
b. coenzyme Q reductase
c. cytochrome c oxidase
d. ATP synthase
e. succiate coenzymr q reductase
d.ATP synthase
complex II transfers e- from FADH2 to COQ , what iS complex II?
a. NADH - coenzyme Q reductase
b. coenzyme Q reductase
c. cytochrome c oxidase
d. ATP synthase
e. succiate coenzymr q reductase
e. succiate coenzymr q reductase
which of these drugs inhibits ATP synthase
a. oligomycin
b. dinitrophenol
c. rotenone
d. cyanide, azide, co
a.oligomycin
which of these drugs disrupts the proton gradient
a. oligomycin
b. dinitrophenol
c. rotenone
d. cyanide, azide, co
b.dinitrophenol
which of these drugs prevents the transfer of e- from complex I to coQ
a. oligomycin
b. dinitrophenol
c. rotenone
d. cyanide, azide, co
c.rotenone
