Help with these questions, plz

[ar78cx]

Hey,
I posted these q's a while ago but got different answers,

* Viscosity is greatest in :
1- vasa recta
2- aorta
3- pulmonary artery
4- pulmonary vein
5- SVC
some said 1, others 3

* What inhibits PFK
1- ATP
2- Nad
3- citrate

1 or 2

Thanx

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[kal_nag]

Hey,
I posted these q's a while ago but got different answers,

* Viscosity is greatest in :
1- vasa recta
2- aorta
3- pulmonary artery
4- pulmonary vein
5- SVC
some said 1, others 3

* What inhibits PFK
1- ATP
2- Nad
3- citrate

1 or 2

Thanx

1- vasa recta
2- ATP

 

[ar78cx]

1- vasa recta
2- ATP

Thanx kal nag.

 

[gp120]

I believe both the answers r correct for pfk 1 in muscle

when ATP is high,the cell does not need ATP,the glycolysis is inhibited

When there is high levels of citrate,it indicates that adequate amt of substrate r entering the TCA cycle.therefore ,glycolysis slowes down.

pls correct me if iam wrong

QUOTE=kal_nag]1- vasa recta
2- ATP[/QUOTE]

 

[kal_nag]

I believe both the answers r correct for pfk 1 in muscle

when ATP is high,the cell does not need ATP,the glycolysis is inhibited

When there is high levels of citrate,it indicates that adequate amt of substrate r entering the TCA cycle.therefore ,glycolysis slowes down.

pls correct me if iam wrong

QUOTE=kal_nag]1- vasa recta
2- ATP

[/QUOTE]
u r correct .both 1 and 3 r correct but not 2 .i had to choose between 1 and 2.so its 1.see the ans above.

 

[colours]

hi

can anybody give me the answer for this question

when a brief period of hysterical hyperventilation causes resp. alkalosis, tetany might be caused by a sudden decrease of which of the foll. forms of calcium
a)total serum
b)ionized serum
c)citrate bound
d)serum protein bound

thanks

 

[Inshaa]

hi

can anybody give me the answer for this question

when a brief period of hysterical hyperventilation causes resp. alkalosis, tetany might be caused by a sudden decrease of which of the foll. forms of calcium
a)total serum
b)ionized serum
c)citrate bound
d)serum protein bound

thanks

the ans is b according to kaplan and old thread.

 

[nbc]

Can someone help me with these questions??
1. reflex elicited by masseter on being tapped?
2.Most powerful muscle of mastication?
Thanks

 

[mekha]

Can someone help me with these questions??
1. reflex elicited by masseter on being tapped?
2.Most powerful muscle of mastication?
Thanks

1) jaw jerk reflex favouring mandible deviation
2) masseter

 

[ar78cx]

1) jaw jerk reflex favouring mandible deviation
2) masseter

Hi , The most powerful is the temporalis, the masseter is the 2nd .

 

[jojo-Z]

Hi , The most powerful is the temporalis, the masseter is the 2nd .

The most powerful muscle of mastication : TEMPORALIS
The most important muscle of mastication : MASSETER
jojo-Z

 

[mekha]

The most powerful muscle of mastication : TEMPORALIS
The most important muscle of mastication : MASSETER
jojo-Z

where did you get this answer or expl ?
thanks in advance

 

[mekha]

The most powerful muscle of mastication : TEMPORALIS
The most important muscle of mastication : MASSETER
jojo-Z

most powerful muscle i read is masseter so getting here

 

[mam6701e]

Hey,
I posted these q's a while ago but got different answers,

* What inhibits PFK
1- ATP
2- Nad
3- citrate

1 or 2

Thanx

PFK is inhibite by both: ATP and citrate

 

[mam6701e]

Hey,
I posted these q's a while ago but got different answers,
* What inhibits PFK
1- ATP
2- Nad
3- citrate

1 or 2

Thanx

PFK-1 is inhibited by both: ATP and citrate.
PFK-1 is activated by AMP and fructose 2,6-biphosphate (F 2, 6-bp)

PFK-1 is stimulated by insulin and inhibited by glucagon but by an indirect process involving PKF-2 and fructose 2,6-biphosphate (F 2, 6-p)

PFK-2 is stimulated by insulin and inhibited by glucagon by an indirect process.

Therefore: insulin activates PKF-2 directly----PFK-2 converts fructose-6p to fructose2,6 bp--fructose 2,6 bp activates PKF-1.