Help me please- NDBI questions

[Axel]

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I will be posting some questions. I would really appreciate your help.

1. Healthy female,second encounter with antigen with antibody response.Secondary response will differ from the first encounter by:

A. Significant degree of cross reactivity with her own tissue.
B. Apprearing much lower since B and T cells have been exhausted.
C. Production of antibodies predominantly of IgM class.
D. Synthesis of antibodies in much higher titer that exhibit a better fit for antigen.

 

[drkooks]

1. Healthy female,second encounter with antigen with antibody response.Secondary response will differ from the first encounter by:

A. Significant degree of cross reactivity with her own tissue.
B. Apprearing much lower since B and T cells have been exhausted.
C. Production of antibodies predominantly of IgM class.
D. Synthesis of antibodies in much higher titer that exhibit a better fit for antigen.



i have a q too
in one od ADA released exams;
li embrasure smaller than Bu in:
and ans was between lower first and second premolars
but in kaplan book it says between max molar(which makes more sense as upper first molar is wider li than bu) can someone confirm from wheeler ...pleaseeeeeeeee

 

[Axel]

1. Healthy female,second encounter with antigen with antibody response.Secondary response will differ from the first encounter by:

A. Significant degree of cross reactivity with her own tissue.
B. Apprearing much lower since B and T cells have been exhausted.
C. Production of antibodies predominantly of IgM class.
D. Synthesis of antibodies in much higher titer that exhibit a better fit for antigen.



i have a q too
in one od ADA released exams;
li embrasure smaller than Bu in:
and ans was between lower first and second premolars
but in kaplan book it says between max molar(which makes more sense as upper first molar is wider li than bu) can someone confirm from wheeler ...pleaseeeeeeeee

Thnaks a lot for your help..and
without doubt pick b/w lower first and second premolars.
are you also studing for your Boards? Let's keep posting questions in this thread

 

[Axel]

I will be posting some questions. I would really appreciate your help.

1. Healthy female,second encounter with antigen with antibody response.Secondary response will differ from the first encounter by:

A. Significant degree of cross reactivity with her own tissue.
B. Apprearing much lower since B and T cells have been exhausted.
C. Production of antibodies predominantly of IgM class.
D. Synthesis of antibodies in much higher titer that exhibit a better fit for antigen.

Constituent of epithelial cells or tissues that gives a positive PAS reaction:
A. Cilia
B. Nuclei
C. Nucleoli
D. Brush Borders

Which of the following glands are constituents of blood supply LEAST readily available to parenchyma?
A. Thymus
B. Spleen
C. Lymph node
D. Peyer’s patch
E. Pharyngeal tonsil

Indicative of myocardial infarction if found at increased serum levels:
A. Myosin
B. Troponin
C. Tropomyosin
D. Myosin kinase
E. Myosin phosphatase

Best description of O2 concentration in alveolar air:
A. Higher than O2 concentration in humidified air
B. Higher than the O2 concentration in inspired air
C. Lower than O2 concentration in inspired air
D. Lower than CO2 concentration in alveolar air.


Each of the following substances is correctly paired with the type of covalent bond except one:
A. Protein-Amide
B. Tryglyceride-ether
C. Amylose-phosphodiester
D. Phospholipid-ester

 

[foreigndentist]

Constituent of epithelial cells or tissues that gives a positive PAS reaction:
A. Cilia
B. Nuclei
C. Nucleoli
D. Brush Borders

Which of the following glands are constituents of blood supply LEAST readily available to parenchyma?
A. Thymus
B. Spleen
C. Lymph node
D. Peyer’s patch
E. Pharyngeal tonsil

Indicative of myocardial infarction if found at increased serum levels:
A. Myosin
B. Troponin
C. Tropomyosin
D. Myosin kinase
E. Myosin phosphatase

Best description of O2 concentration in alveolar air:
A. Higher than O2 concentration in humidified air
B. Higher than the O2 concentration in inspired air
C. Lower than O2 concentration in inspired air
D. Lower than CO2 concentration in alveolar air.


Each of the following substances is correctly paired with the type of covalent bond except one:
A. Protein-Amide
B. Tryglyceride-ether
C. Amylose-phosphodiester
D. Phospholipid-ester

3. Troponin

4. Lower than O2 conc. in inspired air.

5 Amylose-Phosphodiester is not paired correctly.

Please correct me if I am wrong

 

[Axel]

Type of reflex that is exhibited by masseter m. when dentist taps on side of the face :
a. Stretch
b. Withdrawl
c. Golgi tendon
d. Cross extensor

best caracterizes a steroid hormone:
a. Binds to intarcellular receptors
b. Synthesized in precursor form
c. Acts by generatin a second messenger
d. Usually transported unbound in plasma

In the contarctile cycle , dissociation of actomyosin complex results Most immediately from:
a. ATP hydrolysis
b. Release of ATP hydrolysis products
c. ATP replacing ADP on the myosin heads
d. Crossbrideges.

 

[foreigndentist]

Ans
1 a
2 c
3 a

Hope it helps🙄

 

[simkarl]

Indicative of myocardial infarction if found at increased serum levels:
A. Myosin
B. Troponin
C. Tropomyosin
D. Myosin kinase
E. Myosin phosphatase

B)ans) It is important to note that cardiac troponins are a marker of all heart muscle damage, not just myocardial infarction,Other conditions that directly or indirectly lead to heart muscle damage can also therefore increase troponin levels.




Which of the following glands are constituents of blood supply LEAST readily available to parenchyma?
A. Thymus
B. Spleen
C. Lymph node
D. Peyer’s patch
E. Pharyngeal tonsil..


in the adult thymus the blood supply is isolated from the parenchyma but in the child thymus the blood is NOT as isolated from the parenchyma.



Constituent of epithelial cells or tissues that gives a positive PAS reaction:
A. Cilia
B. Nuclei
C. Nucleoli
D. Brush Borders

please what does PAS reaction mean?????
and hope that you explain when you answer.



any correction is welcomed

 

[drkooks]

In the contarctile cycle , dissociation of actomyosin complex results Most immediately from:
a. ATP hydrolysis
b. Release of ATP hydrolysis products
c. ATP replacing ADP on the myosin heads
d. Crossbrideges.

 

[foreigndentist]

Can you explain your ans.

As far as my ans. I was thinking that
In sliding-filament theory of skeletal muscle movement of myosin along actin is ATP dependent.In the process the hydrolysis of ATP results in the myosin resuming the original form & get ready fro other cycle.
So my understanding of the Q. is breaking down of actinmyosin complex....the ans c.
will be right if we are talking abt making this complex...

Anyone else please try to clear this doubt.

 

[foreigndentist]

Here is what I found abt PAS reaction

http://en.wikipedia.org/wiki/Periodic_acid-Schiff

Anyone else......