****Please help me to answer the questions!

[drvijigobs]

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Could anyone please provide answer with explantion for the following questions... would be really appreciated.

1.lipid micelle have sphericle structure are stablised by
a.ionic interation of lipo protein
b.ionic interation between lipid groups
c.hydrophobic interation of lipid groups
d.hyrdophilic interation of lipid groups
2.Solution A has a PH of 7 and solution B has PH of 6 solution of equal volume
Which of the following statements about a solution is most accurate
a.A has 1/10 as many hydrogen ion as B
b.A has 10 times more hydrogen ion as B
3.Biological active confirmation of trimeric G protein requires
a.Alpha subunit to bind GTP
b.The Alpha sub unit to bind GTP
c.The hydrolysis of BetaGama sub unit
d.The alpha subunit to phosphorylate downstream target
4.which of the following statements best applies to salaiva
a.Phosphate is the main PH buffer
b.Supplies sialate for additional mucins
c.Supplies calcium and phosphate for remineralization
d.undersaturated with respect to hyrdoxyapatite at neutral PH
5.Transmission of impulse from the motor nerve to the muscle cell regularly produces
a.An action potential in muscle cell
b.Graded potential in muscle cell
c.Hyperpolarization of the muscle cell
d.Hypopolarization of the muscle cell
e.Alteration in the threshold potential of the muscle cell
6.The Basic principle for sequencing DNA by sanger procedure drive from which of the following procedure
a.Translation
b.Transcription
c.Replication
d.Reverse transcriptase
7.Which of the following molecule is common to NAD and FAD
a.Arginine
b.Adinine
C.Aspartic acid
d.Asparagine
e.Alanine
8.0.2 Mole/l Nacl solution and 0.2 M/l glucose solution are separated by the membrane that is impermeable to the solution and permeable to water which of the following statement is correct
a.The water will go from glucose to saline solution
b.The water will go from saline to glucose
9.What is the net charge of glutamic acid at a pH of 1
a.+2
b.+1
c.0
d.-1
e.-2
10.Which of the following explains why the digestive action of salivery amylase continues for sometimes after swollowing
a.Gasteric acid increase the digestive action of amylase
b.The gastric mucin lubricate bolus and
c.The amylase inside the bolus protective from the inactivating action of gastric HCL
d.The water absorbtion by the stomach concentrate amylase and makes the action more effective
e.Contration of the stomach distribute amylase more evenly throught the bolus
11.Mouth rinse contains 0.05% fluride which of the following represent the concentration expressed as PPM
a.5
b.50
c.500
d.5000
12.Transmission of sound from the tympanic membrane to the cochlea is accomplished by which of the following
a.Passage through a fluid filled compartment
b.Penetration of the sound waves through a thin membrane

 

[drvijigobs]

hi .....

i have only a week for my exam ...can u guys help me plzzzzzzzzz.........

 

[red88m]

hi .....

i have only a week for my exam ...can u guys help me plzzzzzzzzz.........

I'm not sure what the answer to #1 is- the micelle forms b/c of hydrogen bonding from surrounding water molecules, and decreasing the number of ordered lipid+water arrangements. So maybe C is the best answer? There should be a hydrogen bonding answer, imo.

The answer to #3 should be the alpha subunit binds to form GTP from GDP. The G-protein is inactive with GDP bound, and active with GTP bound.

#4- HCO3- is the buffer. Calcium and phosphate are the remineralizing components.

#5-results in action potential. The motor neuron to muscle cell connection is huge and always results in an action potential when Ach is released. (I originally thought the answer was graded potential, but my neuroscientist husband says otherwise.)

#11- I'm assuming this is sodium fluoride, since that's most common in OTC rinses- 500ppm.

Hopefully these are the right answers- I'm curious to know if they are, so if anyone wants to debate them, I'm game.

 

[D D S]

Could anyone please provide answer with explantion for the following questions... would be really appreciated.
c.hydrophobic interation of lipid groups
3.Biological active confirmation of trimeric G protein requires
a.Alpha subunit to bind GTP
4.which of the following statements best applies to salaiva
a.Phosphate is the main PH buffer
5.Transmission of impulse from the motor nerve to the muscle cell regularly produces
a.An action potential in muscle cell
7.Which of the following molecule is common to NAD and FAD
b.Adinine
8.0.2 Mole/l Nacl solution and 0.2 M/l glucose solution are separated by the membrane that is impermeable to the solution and permeable to water which of the following statement is correct
a.The water will go from glucose to saline solution

correct me if i am wrong

 

[drvijigobs]

thanks a lot for ur response....

 

[dent_mangalore]

Could anyone please provide answer with explantion for the following questions... would be really appreciated.

1.lipid micelle have sphericle structure are stablised by
a.ionic interation of lipo protein
b.ionic interation between lipid groups
c.hydrophobic interation of lipid groups
d.hyrdophilic interation of lipid groups
2.Solution A has a PH of 7 and solution B has PH of 6 solution of equal volume
Which of the following statements about a solution is most accurate
a.A has 1/10 as many hydrogen ion as BpH is low, it means that there is a high concentration of Hydrogen ions
b.A has 10 times more hydrogen ion as B
3.Biological active confirmation of trimeric G protein requires
a.Alpha subunit to bind GTP
b.The Alpha sub unit to bind GTP
c.The hydrolysis of BetaGama sub unit
d.The alpha subunit to phosphorylate downstream target
4.which of the following statements best applies to salaiva
a.Phosphate is the main PH buffer
b.Supplies sialate for additional mucins
c.Supplies calcium and phosphate for remineralization
d.undersaturated with respect to hyrdoxyapatite at neutral PH
5.Transmission of impulse from the motor nerve to the muscle cell regularly produces
a.An action potential in muscle cell
b.Graded potential in muscle cell
c.Hyperpolarization of the muscle cell
d.Hypopolarization of the muscle cell
e.Alteration in the threshold potential of the muscle cell
6.The Basic principle for sequencing DNA by sanger procedure drive from which of the following procedure
a.Translation
b.Transcription
c.Replication
d.Reverse transcriptase
7.Which of the following molecule is common to NAD and FAD
a.Arginine
b.Adinine
C.Aspartic acid
d.Asparagine
e.Alanine
8.0.2 Mole/l Nacl solution and 0.2 M/l glucose solution are separated by the membrane that is impermeable to the solution and permeable to water which of the following statement is correct
a.The water will go from glucose to saline solution
b.The water will go from saline to glucose
both are there will be a dynamic equilibrium
9.What is the net charge of glutamic acid at a pH of 1
a.+2
b.+1
c.0
d.-1
e.-2 I think so bec GLut acid has 3 charged grps
10.Which of the following explains why the digestive action of salivery amylase continues for sometimes after swollowing
a.Gasteric acid increase the digestive action of amylase
b.The gastric mucin lubricate bolus and
c.The amylase inside the bolus protective from the inactivating action of gastric HCL
d.The water absorbtion by the stomach concentrate amylase and makes the action more effective
e.Contration of the stomach distribute amylase more evenly throught the bolus
11.Mouth rinse contains 0.05% fluride which of the following represent the concentration expressed as PPM
a.5
b.50
c.500
d.5000
12.Transmission of sound from the tympanic membrane to the cochlea is accomplished by which of the following
a.Passage through a fluid filled compartment endolymph to be precise

b.Penetration of the sound waves through a thin membrane

Feel free to correct me if i am wrong

 

[papadel37]

Could anyone please provide answer with explantion for the following questions... would be really appreciated.

1.lipid micelle have sphericle structure are stablised by
a.ionic interation of lipo protein
b.ionic interation between lipid groups
c.hydrophobic interation of lipid groups*
d.hyrdophilic interation of lipid groups
2.Solution A has a PH of 7 and solution B has PH of 6 solution of equal volume
Which of the following statements about a solution is most accurate
a.A has 1/10 as many hydrogen ion as B*
b.A has 10 times more hydrogen ion as B
3.Biological active confirmation of trimeric G protein requires
a.Alpha subunit to bind GTP
b.The Alpha sub unit to bind GTP(actually I think alpha subunit +GDP)*
c.The hydrolysis of BetaGama sub unit
d.The alpha subunit to phosphorylate downstream target
4.which of the following statements best applies to salaiva
a.Phosphate is the main PH buffer
b.Supplies sialate for additional mucins
c.Supplies calcium and phosphate for remineralization*
d.undersaturated with respect to hyrdoxyapatite at neutral PH
5.Transmission of impulse from the motor nerve to the muscle cell regularly produces
a.An action potential in muscle cell
b.Graded potential in muscle cell
c.Hyperpolarization of the muscle cell
d.Hypopolarization of the muscle cell
e.Alteration in the threshold potential of the muscle cell
6.The Basic principle for sequencing DNA by sanger procedure drive from which of the following procedure
a.Translation
b.Transcription
c.Replication*
d.Reverse transcriptase
7.Which of the following molecule is common to NAD and FAD
a.Arginine
b.Adinine*
C.Aspartic acid
d.Asparagine
e.Alanine
8.0.2 Mole/l Nacl solution and 0.2 M/l glucose solution are separated by the membrane that is impermeable to the solution and permeable to water which of the following statement is correct
a.The water will go from glucose to saline solution*
b.The water will go from saline to glucose
9.What is the net charge of glutamic acid at a pH of 1
a.+2
b.+1*
c.0
d.-1
e.-2
when the PH of environment is below the optimum PH of Aminoacids they got the positive charge and go to the catod)
10.Which of the following explains why the digestive action of salivery amylase continues for sometimes after swollowing
a.Gasteric acid increase the digestive action of amylase
b.The gastric mucin lubricate bolus and
c.The amylase inside the bolus protective from the inactivating action of gastric HCL*
d.The water absorbtion by the stomach concentrate amylase and makes the action more effective
e.Contration of the stomach distribute amylase more evenly throught the bolus
11.Mouth rinse contains 0.05% fluride which of the following represent the concentration expressed as PPM
a.5
b.50
c.500*
d.5000
0.05 100
X 1000000 X=500
12.Transmission of sound from the tympanic membrane to the cochlea is accomplished by which of the following
a.Passage through a fluid filled compartment*
b.Penetration of the sound waves through a thin membrane

please correct me if I'm wrong

 

[dent_mangalore]

yep u are rt sorry. I should've known this🙄 ph below isoelectric pt and the charge is positive.........