please answer these

[mahima_dentist]

1.one strnd of DNA double helix is 20% A ,30% T,40%C,then %age of C on other strand is?
1.10
2.20
3.50
4.80
5.90
wanna confirm the answer (plz give the explanation if possible).

2.a mouth rinse contains .05 % F.which of following represents the conc in ppm?
1.5
2.50
3.500
4.5000

3.urine sample with pH of 5.7 has H ion conc of?
how do u calculate this?

4.A single impulse traveks down n alpha motor axon.this results in?
1.the activtion of a single motor unit
2.the contraction of one muscle fibre
as per me ans should be 1..coz each alpha neuron innervates many muscle fibres and all 2gethr make the motor unit..

i would appreciate if someone can clear these queries.
thanks

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[twinfish]

q1:
the ans is 10%
the G on this strand is 10% (1-20%-30%-40%); it complements to the base C on another strand, so the C conc on another strand is 10%.
q4:
i think u are right.

 

[twinfish]

3.urine sample with pH of 5.7 has H ion conc of?
how do u calculate this?

as pH=-log[H+], 5.7=-log[H+]; [H+]=10^-5.7

 

[kal_nag]

2. ans 50
4.ans 1

 

[syk]

I think the answer to the 2 q is 500.Do correct if am wrong.

 

[kal_nag]

ur correct ans for 2 q is 500.

 

[mahima_dentist]

3.urine sample with pH of 5.7 has H ion conc of?
how do u calculate this?

as pH=-log[H+], 5.7=-log[H+]; [H+]=10^-5.7

Didnt get the last step properly...can u explain?
choices are 1. 2 x 10-3
2. 2x 10-5(not sure of the raise to power digits..they are not that clear in the paper i have
3. 1x10-5(again ,not sure of the power)


another question:
a).a dehydrated detal patient as a result of severe vomiting following over-use of narcotic analgesics,might present with?
1.an increased pulse rate
2.increased blood pressure
3facial oedema
4.distended neck veins
5.desire to constantly urinate
plz give me the explanation involved if

b).microflora of healthy gingival sulcus:
1.gram+ve filamentous cocci and filamentous bacteria
2.gram-ve anaerobic rods and fusobacteria

c).which unique aspect of cariogenic strains of strep. mutans sets them apart frm other oral acidogenic micro-organisms?
1.secretion of proteolytic enzymes
2.extracellular polysaccharide made frm glucose
3. formation of water insoluble glucans frm sucrose
is the answer 3?


d)vasodilation nd increased vascular permeability lasting for several days in an area of inflammation indicates?
1.thrombosis
2. hageman factor activation
3. granulation tissue formation
4.endothelial cell damage n disruption

e) crown of max canine normally exhibits
1.linguo-gingival groove
2.linguo-gingival fissure

thanks

 

[twinfish]

Didnt get the last step properly...can u explain?
choices are 1. 2 x 10-3
2. 2x 10-5(not sure of the raise to power digits..they are not that clear in the paper i have
3. 1x10-5(again ,not sure of the power)


are u sure the choice? I guess the power might be -5.7. the ans is 3. otherwise, i am really confused.

 

[drkum1]

Which of the following agent is not likely to be found in plasma?
A)thrombin
B)fibrinogen
C)prothrombin
D)calcium ion
E)ascorbic acid

 

[mahima_dentist]

Didnt get the last step properly...can u explain?
choices are 1. 2 x 10-3
2. 2x 10-5(not sure of the raise to power digits..they are not that clear in the paper i have
3. 1x10-5(again ,not sure of the power)


are u sure the choice? I guess the power might be -5.7. the ans is 3. otherwise, i am really confused.

Hi,
I cant say about the powe coz its way too blurred in my paper..anywaz..can u plz answer the rest of the ques if u know any of them..
plz reply asap..
thanks

 

[sonibun]

a).a dehydrated detal patient as a result of severe vomiting following over-use of narcotic analgesics,might present with?
1.an increased pulse rate
2.increased blood pressure
3facial oedema
4.distended neck veins
5.desire to constantly urinate
plz give me the explanation involved if
Ans-1
inc pulse as to keep up with cardiac volume

b).microflora of healthy gingival sulcus:
1.gram+ve filamentous cocci and filamentous bacteria
2.gram-ve anaerobic rods and fusobacteria
i dont know what is filamentous cocci
ans -gram+IVE cocci and fil. bacteria-it has more% compare to anerobic

c).which unique aspect of cariogenic strains of strep. mutans sets them apart frm other oral acidogenic micro-organisms?
1.secretion of proteolytic enzymes
2.extracellular polysaccharide made frm glucose
3. formation of water insoluble glucans frm sucrose
ans 3



d)vasodilation nd increased vascular permeability lasting for several days in an area of inflammation indicates?
1.thrombosis
2. hageman factor activation
3. granulation tissue formation
4.endothelial cell damage n disruption
ans 4 not sure

e) crown of max canine normally exhibits
1.linguo-gingival groove
2.linguo-gingival fissure
lingual groove
not sure