21. When sodium and potassium pump is activated, for (a) Na+ ion, (b) K+ ion are exchanged ?
A. a = one , b= two
B. a = two, b= four
C. a = two , b= three
D. a = one, b= three
Answer : Option C
22. The transfer of ion through ion channel is (a) and (b)
A. a = Bidirectional, b= selectively permeable
B. a =Unidirectional, b= permeable
C. a = Bidirectional , b= semi permeable
D. a = Unidirectional, b= selectively permeable
Answer : Option A
23. What is the swollen, structure present at terminal end of each branch of nerve cell called ?
Which option is correct for the correctly matched groups for the column i;column ii and column
Column I Column II Column III
(a) Resting membrane (i) Na+ Channel get open (e) Na+ and k + pumps are responsible protentialfor it
(b) Active potential (ii) Na+ Channel is closed (f) Last for very short time
(c) Depolarization (iii) Na+ ions are more on (g) k + ions move on outerside outer side of membranes
(d) Repolarization (iv) K + ions are more on outer (h) Positive charge of inner side of
side of membrane membrane
A. (a-iv-f) (b-iii-e) (c-ii-h) (d-i-g)
B. (a-iv-e) (b-iii-f) (c-ii-g) (d-i-h)
C. (a-iii-e) (b-iv-f) (c-i-h) (d-ii-g)
D. (a-ii-h) (b-i-g) (c-iii-e) (d-iv-f)
Answer : Option C
25. Which of the following generally transumit nerve inpulse only to the cyton ?
26. What is correct in reference with nerve impulse ?
A. Self-induced and unidirectional
B. Selt-induced and bidirectional
C. Electric potential in the nerve by region increase
D. Ion channel get closed in this region.
Answer : Option A
27. ____________ is wraped by cerebrum ?
28. he weight of human brain is (a) and (b) neuron in it
A. a = 1000 to 1100g b =1000 billion
B. a = 1200 to 1400g b = 100 billion
C. a = 800 to 1000g b = 1000 million
D. a = 1200 to 1400g b = 100 million
Answer : Option B
29. Which of the follwing is a thin transparent nonvasscular meninges around CNS ?
30. Which of the following option indicates correct chronology of the meninges from cranium to CNS ?
A. Dura mater ?Arachanoid ? Pia mater
B. Pia mater ? Arachanoid ? Dura mater
C. Pia mater ? Dura mater ? Arachanoid
D. Arachanoid ? Dura mater ?Pia mater
Answer : Option A