2015
LIFE SCIENCE
(BIFURCATED SYLLABUS)
Time- Three Hours Fifteen Minutes
(First fifteen minutes for reading the question paper only)
Full Marks-90 (For Regular and Sightless Regular
Candidates)
Full marks-100 (For External and Sightless External
Candidates)
FOR REGULAR, EXTERNAL AND SIGHTLESS
CANDIDATES
Special credit will be given for answers which are brief
and to the point. Marks will be deducted for spelling
mistakes, untidiness and bad handwriting.
[English Version]]
(Bifurcated Syllabus)
(For Class X Syllabus Only)
Directions
For Regular Candidates, the questions of Group 'A' , 'B'
and 'C' will have to be answered.
For External Candidates, the questions of Group 'D'
will also have to be answered in addition to group 'A',
'B'and 'C'.
Instructions regarding the number of questions to be
attempted have been indicated at the beginning of each
group.
Special Instruction for Sightless Candidates
In Group 'C', instead of Question Nos. 12 and 13, any
one of the Question Nos. 12(A) and 13(A) will have to
be answered.
Group 'A'
[Candidates will have to answer question Nos. 1,2,3 and 4]
1. Complete the sentences choosing the correct
answer (any five): 1x5=5
(i) Myelin Sheath is observed on
(a) the axon of all neurones
(b) the dendrons of all neurons
(c) the axon and dendron of all neurons
(d) the axon of some neurons
