Lets discuss questions of NBDE 1

[d dimps]

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1). .Which angle does a P Wave makes on ECG?
a). .45 degree
b). .180 degree
c). .0 degree
d). .-45 degree
e). .-180 degree.

2). .What is endogenous cholesterol? Most endogenous cholesterol is converted to?
a). .Glucose
b). .Cholic acid
c). .Steroid
d). .Oxaloacetete
e). .Ketone bodies

3). .Which of the following statement is correct regarding Glioblastoma multiforme?
a). .the tumor is most common before puberty
b). .it is classified as a type of meningioma
c). .it is most common type of Astrocytoma.
d). .Its prognosis is generally more favourablethan Grade 1 astrocytoma.
e). .It is derived from the epithelial lining of ventricles

4). .Which of the following pathological changes is irreversible?
a). .fatty changes in liver cells
b). .karyolysis in myocardial cells
c). .glycogen deposition in hepatocyte nuclei
d). .hydropic vacuolization of renal tubular epithelial cells.

5). .An example of Synergism is the effect of?
a). .insulin and glucagon on blood glucose
b). .estrogen and progesterone on uterine motility
c). .growth hormone and thyroxine on skeletal growth.
d). .Antidiuretic hormone and aldosterone on potassium excretion.

 

[teethie]

oh then this question is reallly tricky.

pb2007,wdent, elmos please help with woven bone question😕.....

yes i am

 

[drdds3]

Hey wdent,

you are very prompt.
Can u answer htese too

Saliva--proline containing proteinwhat is its MAO
a) enamel binding (ans. correct me if i am wrong)
b. bacterial growth
c. action on alpha amylase

Antibody binding site

necrosis in central cyst. fluid collection in which organ
a. liver
b. kidney
c. heart
d. brain (ans. not sure)

Detergent action on
a. cell wall
b. cell membrane

disease with acute symtoms as painless hematuria
a. acute glomerulo nephritis
b. kidney disease
c. kidney stone

--Fat(soap) Necrosis

Pls correct iam wrong !

 

[teethie]

wdent, can u please explain what is cyclein??

i agree with other answers 👍 but is gangrene categorised as necrosis??
I mean gangrene comes after necrosis....???
or am i confusing something?? pl clear.

--
Action of cyclein in cell cycle
a. tumor suppressor.............answer !
b. DNA tumor expression
c. cysteine kinase

what type of necrosis associated with cl. perfringes?--Gangrenous causing puterfaction whichi foul smelling !
(options are the types of necrosis)

what type of necrosis seen in alcoholic patients?
Fat(soap) Necrosis

Pls correct iam wrong !

 

[drdds3]

Thanks teethie

hi drdds3, i never read anything like that so my answer is no it wont shift to lateral or central incisor.

if anyone knows, please correct me.

 

[teethie]

pl correct if wrong.

Hey wdent,
you are very prompt.
Can u answer htese too

Saliva--proline containing proteinwhat is its MAO
a) enamel binding (ans. correct me if i am wrong)
b. bacterial growth
c. action on alpha amylase

Antibody binding site
necrosis in central cyst. fluid collection in which organ
a. liver
b. kidney
c. heart
d. brain (ans. not sure ) i think so

Detergent action on
a. cell wall
b. cell membrane-------think so

disease with acute symtoms as painless hematuria
a. acute glomerulo nephritis ------i think so
b. kidney disease
c. kidney stone

 

[elmos]

teethie the question was is there's an action of pepsin inthe intestin

 

[elmos]

teethie
check this link for cortical and lamellar bone
http://books.google.com/books?id=xY...ference between cortical and lamellar&f=false

 

[wdent]

@teethie,butterfly....
difference between cortical and woven bone ? --The answer is that there is INCREASE IN CELL why ? -well thats because in Woven bone there an increase in density of osteoblast (FROM KAPLAN)


Now concerning about Drdds Quest:
Why gangrenous is the answer ? is because gangrenous (is typr of coagulative) necrosis .


Concerning about
Action of cyclein in cell cycle
a. tumor suppressor.............answer !
b. DNA tumor expression
c. cysteine kinase

First the word is written incorrect it is CYCLIN which supress tumors
here is a link 🙂

http://books.google.com/books?id=vk...age&q=cyclin tumor suppressor action'&f=false

thanks ,
pls correct if iam wrong

 

[aiming 4 dds]

which of following cells aid in immunological defence of body

1.mast cells
2.giant cells
3.neutrophils
4.plasma cells

 

[teethie]

pepsin works in acidic medium and intestine has alkaline medium
its action will be stopped by alkalinity of intestine.

http://books.google.com/books?id=n-...&pg=PT77#v=onepage&q=pepsin intestine&f=false

teethie the question was is there's an action of pepsin inthe intestin

 

[teethie]

pl correct if wrong.

which of following cells aid in immunological defence of body

1.mast cells
2.giant cells
3.neutrophils------do not form antibodies
4.plasma cells-----------------answer because of antibodies formation.

 

[teethie]

wdent, thanks for the explanations and links. 👍

but i am still not getting cortical bone and woven bone difference question. where did u read in kaplan, do u remember??

 

[wdent]

@teethie read in p 669
Under intramemb.ossification(its there )

also this is a note from another source too
Mesenchymal cells----->condense osteoblast---->deposits spicules of bone matrix in loose c.t early stages calles as Woven bones ...

 

[aiming 4 dds]

teethie,thanks for the explanations 👍

 

[butterfly22]

teethie
check this link for cortical and lamellar bone
http://books.google.com/books?id=xY...ference between cortical and lamellar&f=false

thanks elmos...i read dat link,what i understand is dat lamellar bone a part of cortical bone...so the choice increase in no of cells is correct...
what dou say???i might be wrong🙁

drdds3 where did u read dis question from and wht is the answer choice in the answer key.

 

[drdds3]

Pretty beautiful explanation wdent
I think u r ready for the exam

@teethie,butterfly....
difference between cortical and woven bone ? --The answer is that there is INCREASE IN CELL why ? -well thats because in Woven bone there an increase in density of osteoblast (FROM KAPLAN)


Now concerning about Drdds Quest:
Why gangrenous is the answer ? is because gangrenous (is typr of coagulative) necrosis .


Concerning about
Action of cyclein in cell cycle
a. tumor suppressor.............answer !
b. DNA tumor expression
c. cysteine kinase

First the word is written incorrect it is CYCLIN which supress tumors
here is a link 🙂

http://books.google.com/books?id=vk...age&q=cyclin tumor suppressor action'&f=false

thanks ,
pls correct if iam wrong

 

[drdds3]

wdent,
can u answer the following too

Hey wdent,

you are very prompt.
Can u answer htese too

Saliva--proline containing proteinwhat is its MAO
a) enamel binding (ans. correct me if i am wrong)
b. bacterial growth
c. action on alpha amylase

Antibody binding site

necrosis in central cyst. fluid collection in which organ
a. liver
b. kidney
c. heart
d. brain (ans. not sure)

Detergent action on
a. cell wall
b. cell membrane

disease with acute symtoms as painless hematuria
a. acute glomerulo nephritis
b. kidney disease
c. kidney stone

 

[teethie]

My last question to everyone, are you guys considering cortical bone as a lamellar bone?

I have read this link thoroughly and found that lamellar bone and woven bone are just an arrangement of cortical bone.

http://books.google.com/books?id=hR... bone difference&pg=PA226#v=onepage&q&f=false

question posted by drdds3 is difference between cortical and woven bone.😕😕😕😕😕

 

[teethie]

drdds3, you do not agree with my answers i posted above. pl correct me if wrong.

wdent,
can u answer the following too

 

[bratdoc]

Hey wdent,

you are very prompt.
Can u answer htese too

Saliva--proline containing proteinwhat is its MAO
a) enamel binding (ans. correct me if i am wrong)👍
b. bacterial growth
c. action on alpha amylase

Antibody binding site ....

necrosis in central cyst. fluid collection in which organ
a. liver
b. kidney
c. heart
d. brain (ans. not sure)👍

Detergent action on
a. cell wall
b. cell membrane👍(on lipid bilayer)

disease with acute symtoms as painless hematuria
a. acute glomerulo nephritis 👍
b. kidney disease
c. kidney stone

..

 

[bratdoc]

My last question to everyone, are you guys considering cortical bone as a lamellar bone?

I have read this link thoroughly and found that lamellar bone and woven bone are just an arrangement of cortical bone.

http://books.google.com/books?id=hR... bone difference&pg=PA226#v=onepage&q&f=false

question posted by drdds3 is difference between cortical and woven bone.😕😕😕😕😕

Hey teethie i also thought that woven and lamellar bone were the microscopic types of the same bone!
But Woven bone is the initially formed bone which is later replaced by lamellar bone (stronger).... even in fracture healing the initial deposit of bone is woven later replaced by a stronger lamellar bone... so i think the question asks the final cortical (final lamellar) bone or the initial woven bone stage!

 

[bratdoc]

and also woven bone has more osteocytes... hence the answer!

 

[teethie]

I got the whole concept now.ohh it took me whole day.

Thank you bratdoc
thank u wdent, i checked kaplan.
thank u butterfly22, elmos.
thank u drdds3 for making us study by posting questions.

and also woven bone has more osteocytes... hence the answer!

 

[teethie]

@bratdoc:

Is not Fab called an antigen binding site???

 

[bratdoc]

@bratdoc:

Is not Fab called an antigen binding site???

Oh yes it is Antigen binding site.... i didnt read the question properly i thought the question meant antibody('s) binding site...😀

 

[drdds3]

teethie,
Even i dont have key for those answers. i marked them based on my knowledge.
I think we go with bratdoc answers since we too marked the same

drdds3, you do not agree with my answers i posted above. pl correct me if wrong.

 

[drdds3]

Few more:

what factor effects resistance of vessels
a. length
b. hematocrit
c. sluggish flow
(i think both b & c are the answers)

what is the benefit of dry heat over wet pressure sterilization

which cell undergoes hypertrophy due to fat food
a. liver cell
b. beta cell----- not sure
c. b cell
d. g cell

on which part of brain does the general anesthesia acts and causes sedation?

In which layer of cell does the tonofilament and keratohyaline granules are present in least number?

 

[bratdoc]

what factor effects resistance of vessels
a. length----ANSWER
b. hematocrit
c. sluggish flow

what is the benefit of dry heat over wet pressure sterilization
I think it does not corrode

 

[drdds3]

bratdoc,

can u explain how length effects resistance
why not the other 2 options

what factor effects resistance of vessels
a. length----ANSWER
b. hematocrit
c. sluggish flow

what is the benefit of dry heat over wet pressure sterilization
I think it does not corrode

 

[bratdoc]

bratdoc,

can u explain how length effects resistance
why not the other 2 options

Hmmmm according to pousille's law the resistance depends on both Length and Viscosity... and hematocrit is the most important factor determining viscosity

so hematocrit can also be correct BUT there is a direct relation between Length and Resistance... the relation of hematocrit is through viscosity..
that is why i think the answer is length

do correct me if im wrong!

 

[Svetlana]

1.The following peptide carries which of the following charges in water pH7?
Arg-Leu-Phe-Lys-Glu-Gly

A.2
B.1
C.0
D.-1
E.-2


2.What is the maximum number of amino acids that can be coded for a polynucleotide which contains only adenine,uracil,cytosine:

A.9
B.64
C.20
D.27
E.3


Please!Exam is soon!!!

 

[bratdoc]

1.The following peptide carries which of the following charges in water pH7?
Arg-Leu-Phe-Lys-Glu-Gly

A.2
B.1---Answer
C.0
D.-1
E.-2


2.What is the maximum number of amino acids that can be coded for a polynucleotide which contains only adenine,uracil,cytosine:

A.9
B.64
C.20
D.27
E.3
😕 i think 6 but thats not an option!


Please!Exam is soon!!!

..

 

[Svetlana]

..

1st is right.But how did you approach these kind of Q?
and the 2nd answer is 27....no idea

 

[Cindrella]

..

how do u approach such questions ???

 

[bratdoc]

Well what i think is we should add up their charges

Acidic amino acids carry negative charges
Basic amino acids carry positive charges
Neutral amino acids carry no charges

Arg +1
Leu 0
Phe 0
Lys +1
Glu -1
Gly 0

so (+1)+(+1)+(-1)=1

Where are these questions from Svetlana?

 

[elmos]

how did you know it's glutamate not glutamine ? pls explain?

 

[bratdoc]

how did you know it's glutamate not glutamine ? pls explain?

Since GLU=Glutamate/Glutamic acid
and GLN=Glutamine

 

[bratdoc]

1st is right.But how did you approach these kind of Q?
and the 2nd answer is 27....no idea

Svetlana where are these questions from?!

 

[Cindrella]

Well what i think is we should add up their charges

Acidic amino acids carry negative charges
Basic amino acids carry positive charges
Neutral amino acids carry no charges

Arg +1
Leu 0
Phe 0
Lys +1
Glu -1
Gly 0

so (+1)+(+1)+(-1)=1

Where are these questions from Svetlana?

Thanks 👍

 

[teethie]

drdds3, you misunderstood. i was asking your opinion on my post #1655 where i answered your posted questions.
i have answered your questions already on post#1655

teethie,
Even i dont have key for those answers. i marked them based on my knowledge.
I think we go with bratdoc answers since we too marked the same

 

[teethie]

hi,

Few more:

what factor effects resistance of vessels
a. length
b. hematocrit
c. sluggish flow
(i think both b & c are the answers)
i think all of the above.

what is the benefit of dry heat over wet pressure sterilization---dry heat wont corrode the instruments.

which cell undergoes hypertrophy due to fat food
a. liver cell
b. beta cell----- not sure
c. b cell
d. g cell

on which part of brain does the general anesthesia acts and causes sedation?-------thalamus

In which layer of cell does the tonofilament and keratohyaline granules are present in least number?------stratum spinosum check the other post below

 

[wdent]

Decks number 50 anatomy...
Its confusing how does the liver get its blood supply !!! can someone put down the blood pathway pls !!

 

[Svetlana]

Its from Crack.

Thanks for explanation!I think you are right,just i didnt keep in mind all the charges.Definitely have to do it!!!
And what about 2nd one?No idea?

 

[bratdoc]

Its from Crack.

Thanks for explanation!I think you are right,just i didnt keep in mind all the charges.Definitely have to do it!!!
And what about 2nd one?No idea?

BTW for the second question i thought that A U G could not be repeated in a single codon that is why i said 6... but since u told me the answer of the second question was 27 ... i read the question again and saw it said a "polynucleotide chain which contains only A U G" (that means more than one of each-"poly")... i think it is coz since a single codon can code one amino acid.. and applying permutations the calculation leads to 3 x 3 x3 =27...... Woah i didnt know we would need to do all this on the exam!!!!

How is Crack?? Worth it??

 

[bratdoc]

hi,

Hey Teethie

Can u plz explain why do u think it is all of the above in the following question?😕
what factor effects resistance of vessels
a. length
b. hematocrit
c. sluggish flow
(i think both b & c are the answers)
i think all of the above.

 

[Docta8]

hi every1. im new to this whole nbde course. i need help getting started. please help. would really appreciate it. thanks.

 

[Docta8]

wht info can u get from wiki..and how can u get it?????????? plz sum1 tell me

 

[butterfly22]

Hey Teethie

Can u plz explain why do u think it is all of the above in the following question?😕
what factor effects resistance of vessels
a. length
b. hematocrit
c. sluggish flow
(i think both b & c are the answers)
i think all of the above.

resistance= viscosity x length/radius

 

[drdds3]

teethie,

Are u sure of the 2 answers below. plz confirm it.

on which part of brain does the general anesthesia acts and causes sedation?-------thalamus

In which layer of cell does the tonofilament and keratohyaline granules are present in least number?------stratum spinosum

hi,

 

[drdds3]

ok

drdds3, you misunderstood. i was asking your opinion on my post #1655 where i answered your posted questions.
i have answered your questions already on post#1655