Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
What do un-couplers do?
Anonymous Quiz
16%
Prevents transfer of electrons from cytochrome aa3 to molecular oxygen
22%
Blocks the transfer of reducing equivalents from Fe-S to ubiquinone-Q
13%
Prevent transfer of electrons from cytochrome b to cytochrome C1
48%
ETC takes place but inhibits phosphorylation
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Which type of inhibitors prevents the transfer of electrons from cytochrome aa3 to molecular oxygen?
Anonymous Quiz
34%
Un couplar
7%
Complex I
44%
Complex IV
15%
None of the above
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Which of the following is an example of un-couplers?
Anonymous Quiz
12%
Cyanide
7%
H2S
9%
CO
73%
2,4 dinitrophenol
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Which of the following is an example ofphusiological un-couplers?
Anonymous Quiz
38%
thermogenin
22%
2,4 dinitrophenol
9%
oligomycin
31%
all the above
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
an un couplerof oxidative phosphorylation would most likely lead to
Anonymous Quiz
45%
operation of the ETC without ATP production
19%
inability to oxidize NADH by the ETC
17%
inability to produce heat by the ETC
18%
a dependence on ADP on the ETC to operates
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
ETC components all protein except
Anonymous Quiz
45%
CoQ-10
14%
Upiquinone
29%
both of them
13%
Cytochrom c
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
——— could be considered as complex V
Anonymous Quiz
16%
ATP synthatase
37%
ATP synthase
13%
cytochrom bc1
34%
Cytochrom c oxidase
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
All true about 2,4 dinitrophenol excepts
Anonymous Quiz
22%
It dissociate oxidation in the respiratory chain from phosphorylation
15%
Its a synthetic uncoupler
13%
Lead to decreas ATP production
50%
Inhibiting the transporter of ADP into and ATP out of the mitochondrion
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
all true about Malate-Oxaloacetate shuttle except
Anonymous Quiz
10%
is of the most universal utility
43%
In this shuttle, the hydrogen is never transported to the mitochondrion.
11%
use cytosolic & mitochondrial malate dehydrogenase
36%
present in all tissues
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Which molecule serves as the intermediate hydrogen acceptor in the Glycerolphosphate shuttle?
Anonymous Quiz
13%
Oxaloacetate
14%
Malate
42%
DHAP
31%
Glycerolphosphate
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
In which tissues is the Glycerolphosphate shuttle deficient?
Anonymous Quiz
22%
Brain
13%
Muscle
48%
Heart muscle
17%
Liver
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Forwarded from Dr.Shimaa Munther Biochemistry MCQ