11. The
electro chemical driving force [Vm-Ex] for K+ is
A) Fairly
close to zero or somewhat positive
B) Always
strongly negative
C)
Moderately negative
D)
Strongly positive
Ans: A
Explanation:
since it is fairly close to zero or somewhat positive, the K is either at
equilibrium or tends to move out of the cell.
12. The
electro chemical driving force [Vm-Ex] for Na+ is
A)
Strongly positive
B)
Strongly negative
C)
Moderately positive
D) Zero
Ans: B
Explanation:
since it is negative, inward net driving force favours passive movement of Na
into cell.
13. The
electro chemical driving force [Vm-Ex] for Ca+ is
A)
Strongly positive
B)
Moderately positive
C)
Strongly negative
D) Zero
Ans: C
Explanation:
since it is strongly negative, Ca tends to move into the cell.
14.
Platelet count in women is
A) 10%
higher than men
B) 20%
higher than men
C) 30%
higher than men
D) 40%
higher than men
Ans: B
15. Which
of the following properties regarding Action potential is wrong?
A) Doesn’t
obey All or None law
B) Self
propagating
C)
Increasing the stimulus further has no effect on Action potential size or shape
D) Sub
threshold stimulus do not elicit any change
Ans: A
16. Slow
twitch or Type I fibres are found in high proportions in
A)
Postural muscles of the back
B) Calf
muscle
C) Extra
ocular muscle
D) Foot
Ans: A
17. Type
II-A Fast oxidative fibres are found in high proportions in
A) extra
ocular muscle
B) Soleus
in the calf
C)
Postural muscles of back
D) Foot
Ans: B
18. Type
II –B Fast glycolytic fibres are found in high proportions in
A)Soleus
B)
Postural muscles of back
C) Extra
ocular muscles
D) Foot
Ans: C
19.
Myoglobin is absent in
A) Type-B-Fast
glycolytic fibres
B) Type
II-A
C) Fast
oxidative
D) Type I
fibres
Ans: A
20. The
lipid molecules of a cell membrane
A) have
hydrophilic polar region at one end & hydrophobic hydrocarbon at the other
end
B) have hydrophilic Polar Regions on both ends
C) have
hydrophobic hydrocarbon on both ends
D) have
lipophilic on both ends
Ans: A
No comments:
Post a Comment