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Forwarded from اختبر نفسك 💊
1) Components of the respiratory chain are contained in 4 large protein complexes embedded in the inner mitochondrial membrane.
Anonymous Quiz
92%
T
8%
F
Forwarded from اختبر نفسك 💊
2) ........ is known as NADH-Q oxidoreductase.
Anonymous Quiz
87%
a) Complex I
6%
b) Complex II
5%
c) Complex III
1%
d) Complex IV
Forwarded from اختبر نفسك 💊
4) The two steps reduction of ubiquinone gives ubiquinol.
Anonymous Quiz
69%
T
31%
F
Forwarded from اختبر نفسك 💊
6) All the following act as proton pumps except:
Anonymous Quiz
1%
a) Complex I
84%
b) Complex II
5%
c) Complex III
11%
d) Complex IV
Forwarded from اختبر نفسك 💊
7) .......... consist of Several sub-units of the protein form a ball-like shape arranged around an axis.
Anonymous Quiz
34%
a) F0
55%
b) F1
11%
c) None of them
Forwarded from اختبر نفسك 💊
8) In substrate level phosphorylation ATP formed from ADP and a phosphorylated intermediate.
Anonymous Quiz
81%
T
19%
F
Forwarded from اختبر نفسك 💊
9) ....... is inhibitor of complex III
Anonymous Quiz
16%
a) Malonate
3%
b) Rotenone
67%
c) Dimercaprol
14%
d) Cyanide
Forwarded from اختبر نفسك 💊
10) ......... block the flow of protons through ATP synthase.
Anonymous Quiz
15%
a) Atractyloside
71%
b) Oligomycin
14%
c) 2,4-dinitrophenol.
Forwarded from اختبر نفسك 💊
11) When phosphorylation decrease electron transport will increase.
Anonymous Quiz
46%
T
54%
F
Forwarded from اختبر نفسك 💊
12) The inner mitochondrial membrane is freely permeable to the following except:
Anonymous Quiz
9%
a) CO2
14%
b) Water
54%
c) NADH
23%
d) NH3
👍1
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Law of thermodynamics which states that energy can neither be created nor be destroyed is ___________
Anonymous Quiz
18%
Zero-order kinetics
69%
First law of thermodynamics
5%
Third law of thermodynamicsc
8%
The second law of thermodynamic
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Gibb’s free energy is the portion of the total energy which is available for useful work.
Anonymous Quiz
85%
true
15%
false
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Which of the following equation shows the relationship between free energy change (∆G) and the change in entropy (∆S), under constant temperature and pressure?
Anonymous Quiz
13%
∆G = T∆H – ∆S
3%
∆G = T∆H/∆S
3%
∆G = ∆H/T∆S
81%
∆G = ∆H – T∆S
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
What is the value of ∆G, when a system is in equilibrium?
Anonymous Quiz
90%
∆G = 0
6%
∆G = ∆G֯
2%
∆G = -1
3%
∆G = 1
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Which of the following equation gives the relationship between ∆G֯ and Keq?
Anonymous Quiz
59%
∆G֯ = -RT ln Keq
22%
∆G = -RT ln Keq
11%
∆G = ∆G֯ (-RT Keq)
8%
∆G֯ = ln Keq
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
Which of the following act as a storage form of high energy phosphate?
Anonymous Quiz
35%
Glucose-6-phosphate
6%
Glycerol phosphate
39%
Phosphagens
20%
Phosphoenolpyruvate
👀2
Forwarded from Dr.Shimaa Munther Biochemistry MCQ
If enthalpy change for a reaction is zero, then ∆G° equals to _____________
Anonymous Quiz
63%
-T∆S°
15%
lnkeq
13%
-∆H°
9%
T∆S°