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Forwarded from طـن أمسكيوات
The citric acid cycle also has a central role in glycolysis , lipolysis and interconversion of amino acids.
Anonymous Quiz
74%
✅️
26%
❌️
Forwarded from طـن أمسكيوات
Acetyl-CoA + oxaloacetate = ـــــــــــــ catalyzed by ـــــــــــــ
Anonymous Quiz
10%
isocitrate , citrate synthase
5%
oxalosuccinat , isocitrate dehydrogenase
4%
oxalosuccinate , aconitase
82%
citrate,citrate synthase
Forwarded from طـن أمسكيوات
There are three isoenzymes of isocitrate dehydrogenase. One, which uses NAD+, is found only in cytosol . The other two use NADP+ and are found in mitochondria and the cytosol
Anonymous Quiz
58%
✅️
42%
❌️
Forwarded from طـن أمسكيوات
one of the following complexes is similar to that involved in the oxidative decarboxylation of pyruvate
Anonymous Quiz
10%
B-succinate dehydrogenase
8%
α-malate dehydrogenase
73%
α-ketoglutarate dehydrogenase
8%
isocitrate dehydrogenase
Forwarded from طـن أمسكيوات
High concentrations of ـــــــــــــ inhibit α-ketoglutarate dehydrogenase
Anonymous Quiz
38%
NH4
11%
Cl-
44%
NH3
8%
CuSo4
Forwarded from طـن أمسكيوات
for the decarboxylation of oxaloacetate to phosphoenolpyruvate in gluconeogenesis the ـــــــــــــ is use as source of energy
Anonymous Quiz
36%
ATP
46%
GTP
9%
ADP
9%
GDP
Forwarded from طـن أمسكيوات
Total final energy that can be obtained from Citric Acid Cycle is
Anonymous Quiz
48%
9 ATP + 1 ATP or GTP
27%
10 ATP + 1 ATP or GTP
4%
15 ATP + GTP
22%
30 ATP
Forwarded from طـن أمسكيوات
B1 is participate In step no ـــــــــــــ which α-ketoglutarate dehydrogenase is used as as a catalyst
Anonymous Quiz
26%
3
61%
4
10%
5
3%
8
Forwarded from طـن أمسكيوات
in step no 4 α -ketoglutarate dehydrogenase which of the following is participate
Anonymous Quiz
17%
Pantothenic acid
13%
Riboflavin
24%
Thiamin
46%
All the following
Forwarded from طـن أمسكيوات
Riboflavin is participate in the Citric Acid Cycle in the form of
Anonymous Quiz
9%
NAD+
8%
Coenzyme A
73%
FAD+
10%
Thiamin diphosphate
Forwarded from طـن أمسكيوات
Anaplerosis is the act of replenishing the citric acid cycle intermediates that have been extracted for biosynthesis.
Anonymous Quiz
88%
✅️
12%
❌️
Forwarded from طـن أمسكيوات
The conversion of pyruvate to acetyl CoA is catalyzed by the enzyme pyruvate dehydrogenase. In this reaction
Anonymous Quiz
12%
a) NADPH is oxidized to NADP
32%
b) NADH is oxidized to NAD
13%
c) NADP is reduced to NADPH
43%
‏d) NAD is reduced to NADH
Forwarded from طـن أمسكيوات
In the tricarboxylic acid cycle, the reaction for the conversion of pyruvate to acetyl CoA is known as
Anonymous Quiz
65%
a) Oxidative decarboxylation
20%
b) Oxidative phosphorylation
5%
c) Reductive biosynthesis
10%
d) Reductive decarboxylation
Forwarded from طـن أمسكيوات
Which of the following is not the irreversible reaction of Kreb's cycle?
Anonymous Quiz
13%
a) Isocitrate dehydrogenase
24%
b) Alpha-ketoglutarate dehydrogenase
28%
c) Citrate synthase
34%
‏d) Malate dehydrogenase
Forwarded from 3rd stage / Exams
مادة البايو كمستري

المحاضرة الرابعة

THE CITRIC ACID CYCLE
Forwarded from Azel 🐨
Forwarded from Azel 🐨
Forwarded from Azel 🐨
The number of steps of the citric acid cycle is
Anonymous Quiz
5%
A. 2
3%
B. 4
79%
C. 8
13%
D. 10
Forwarded from Azel 🐨
Forwarded from Azel 🐨
The number of steps that's producing energy is
Anonymous Quiz
16%
A. 8
37%
B. 5
22%
C. 4
25%
D. 3
Forwarded from Azel 🐨
The number of steps that's producing NADH IS
Anonymous Quiz
7%
A. 8
6%
B. 5
78%
C. 3
9%
D. 1