Correct Answer- D functionally, belong to the superfamily of amidohydrolases and phosphotriesterases Hydrolases --> All digestive enzymes (Pepsin,trypsin', Lipases, esterases), lysosomal enzymes'urease'and phosphatase.
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Biochemistry Videos & Books
19 Nov, 17:57
Correct Answer-B Ans.is. B. Pyridoxine Pyridoxal phosphate is a coenzyme for many enzymes involved in amino 1309 acid metabolism, especially transamination and decarboxylation. It is also the cofactor of glycogen phosphorylase, where the phosphate group is catalytically important. In addition, it is important in steroid hormone action. Pyridoxal phosphate removes the hormone-receptor complex from DNA binding, terminating the action of the hormones.
Biochemistry Videos & Books
18 Nov, 18:19
Correct Answer -A Ans: A.Factor 2 • Vitamin K is a cofactor for the enzymatic conversion of glutamic acid (Glu) residues to gamma-carboxyglutamic acid (GLA) in vitamin K- dependent proteins, via the endoplasmic reticulum resident vitamin K-dependent gamma-glutamyl carboxylase. This carboxylase activity is found in essentially all mammalian tissues, and its reaction product, Gla, has been observed in both vertebrates and invertebrates; both play an important biological role in protein function. • Vitamin K--dependent clotting factor deficiency (VKCFD) is a rare autosomal recessive bleeding disorder that often presents with severe hemorrhage during infancy. • A rare inherited form of defective y-carboxylation resulting in the early onset of bleeding was first described by McMillan and Roberts in 1966 and subsequently has been termed vitamin K-dependent clotting factor deficiency (VKCFD). • Combined deficiency of vitamin K- dependent clotting factors II, VIJ IX, and X (and proteins C, S, and Z) is usually an acquired clinical problem, often resulting from liver disease, malabsorption, or warfarin overdose
Biochemistry Videos & Books
18 Nov, 09:04
Join for explanation https://t.me/biochemistry_videos
Biochemistry Videos & Books
17 Nov, 04:45
[9.2] A 59-year-old man is admitted to the intensive care unit for a myocar- dial infarction. He is given a ẞ-adrenergic antagonist and instructed to avoid emotional turmoil to decrease sympathetic stimulation of the heart. From a cellular perspective, sympathetic stimulation of the heart does which of the following?
Biochemistry Videos & Books
16 Nov, 18:12
Correct Answer: (B) Formation of methemoglobin
For those who picked Option A, here’s the catch!
Oxidized glutathione is actually the "used-up" version. Once it neutralizes oxidative stress, it turns into this oxidized form. What really matters is having reduced glutathione (the active form) to keep protecting RBCs.
*The main issue in G6PD deficiency is that RBCs can’t make enough reduced glutathione because of low NADPH. This leaves the cells vulnerable to oxidative stress, which leads to methemoglobin formation and, eventually, hemolysis.*
So, if you chose A, remember it’s the lack of *reduced glutathione* that causes trouble.
It’s a PYQ from JIPMER PG
smart question indeed! We got most of you on that one 👀.
For those who picked Option A, here’s the catch!
Oxidized glutathione is actually the "used-up" version. Once it neutralizes oxidative stress, it turns into this oxidized form. What really matters is having reduced glutathione (the active form) to keep protecting RBCs.
*The main issue in G6PD deficiency is that RBCs can’t make enough reduced glutathione because of low NADPH. This leaves the cells vulnerable to oxidative stress, which leads to methemoglobin formation and, eventually, hemolysis.*
So, if you chose A, remember it’s the lack of *reduced glutathione* that causes trouble.
It’s a PYQ from JIPMER PG
smart question indeed! We got most of you on that one 👀.
Biochemistry Videos & Books
16 Nov, 08:06
A previously healthy, 27-year-old agricultural worker develops nausea, vomiting, abdominal cramps, cough with wheezing and dyspnoea, salivation, and lacrimation 1 hour after leaving work in a field. On examination, he is afebrile with a heart rate of 50/min and blood pressure of 90/55 mm Hg. Laboratory studies show plasma cholinesterase activity less than 50% of normal. Atropine is given intravenously, and his condition improves. He was most likely exposed to which of the following substances?
A Aflatoxin
B Cyclodiene
C Dioxin
D Ergot alkaloid
E Organophosphate
A Aflatoxin
B Cyclodiene
C Dioxin
D Ergot alkaloid
E Organophosphate
Biochemistry Videos & Books
16 Nov, 08:06
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Biochemistry Videos & Books
16 Nov, 07:56
For answer and explanation
Join https://t.me/Physiology_videos
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Biochemistry Videos & Books
15 Nov, 05:23
Hey newbeezz!!!
I know there's so much to learn but isn't fun...
Okay so I guess in the childhood we all have heard the song, Baby.. Yeah that same which you tried to sing but for someone... .Ok let's not go that way...
So yeah the singer justin bieber is suffering from a condition ----------- which affects------- nerve....
A) bell's palsy, VIIth nerve
B) Bell's palsy, VIIIth nerve
C) Ramsay hunt syndrome, VIIIth nerve
D) Ramsay hunt syndrome, VIIth nerve
E) Sir, mujhe koi mili hi nhi...
I know there's so much to learn but isn't fun...
Okay so I guess in the childhood we all have heard the song, Baby.. Yeah that same which you tried to sing but for someone... .Ok let's not go that way...
So yeah the singer justin bieber is suffering from a condition ----------- which affects------- nerve....
A) bell's palsy, VIIth nerve
B) Bell's palsy, VIIIth nerve
C) Ramsay hunt syndrome, VIIIth nerve
D) Ramsay hunt syndrome, VIIth nerve
E) Sir, mujhe koi mili hi nhi...
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