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((T) H

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((T) H
((T)
sheet?
Why was the pot coverecl with a plastic
experiment'
Suggest a suitable control for this
H
(v)Mentiontwowa\.Sinlvhichthisprocessisbeneficialtoplants.
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(vi)Listthreeadaptationsinplantstoreducetheabovementionedprocess.
(b)
Briefly answer the follo*'ing questions:
in India'
(i) State two r<jasons for the increase of population
fluid?
is the significance of amniotic
(ii)
(iii)
(iv)
(v)
Question
(a)
What
What is the function of ear ossicles?
\'\T{O'
Mention an)'l\\'o activities of the
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State Mendel's law of Dominance'
4
, , 1---. ^-^ ^e, sectic:s'riblood vesseis:
The diagrams given below are cross
(i)
(ii)
(iii)
(i")
(v)
C'
ldentify the blood vessels A, B and
Name the Parts label1ed 1 to 3'
through A'
Name the type of biood that flows
A' and B '
one structural difference between
Mention
of
In which of the above vessels does exchange
gases
acilall1 ';';t;
place?
(b)
pairs on the basis of what is lTlefli'r-r'3i'
Differentiate between the follorving
rl'lthin brackets:
(i)
(ii)
(iii)
(iv)
(v)
Tl5 523
Diffusion and Osmosis tDefinition)
RBC and WBC (ShaPe)
(Part cut and tied)
Tubectom,v and Vasectoml
disorder)
Vasopressin and Insulin (Deficiency
of pigment)'
Rods and Cones of Retina tJ:"pe
-<l
--J
Question
(a)
The diagram given below shows a section
of a human kidney. Study the
diagram carefully and answeJthe questions that follow:
(i)
i
ii)
{iit
Label the parts numbered I to 4.
\\hr
does
p:rt
':'
hale a snriped appearance?
:
What is the fluid that passes down part '4'? Name the main nitrogenous
waste present in it.
(iv)
Mention the structurai and functional units of kidneys.
(v)
Name the two major steps in the formation of the fluid mentioned in
a.
(b)
s(a) (iii).
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Draw neat and labeiled diagrams of the following:
(i)
(ii)
715 523
Malpighian Capsule.
A Myelinated Neuron.
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Turn Over
t.'
.'.
Question 6
(a)
The diagram given below shows the male urinogenital system of a human
being. Study the diagram and answer the questions that follow:
b t.
(i)
Label the parts numbered I
(ii)
Name the corresponding sErUrG
dFt
(a) in female reproductive
system.
(iii)
.l:
What is the role of pat 7?
tsI
t
1
I'
I
O)
In a homozygous plant
(i)
il(R)
are
domiifrni
Draw a Punnett square to show the gametes and offspring when both
the plants have heterozygous round seeds (Rr).
(ii)
Mention the Phenotype and Geriotype ratios of
_
(iii)
(iv)
(v)
generation.
T15 523
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[email protected] in
Fz
Name the sex chrmosomes in human males and females.
Briefly explain thetertn 'Mutationl
what is the numberof chromosomes in the gametes of human
beings?
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Question 7
(a)
The diagram below represents the human heart in one phase of its functions.
Study the diagram carefully and answer the questions that follow:
(i)
(ii)
Name the phase.
Wirich part of the heart is contracting in this phase? Give a reason to
support your answer.
(iii)
(iv)
trJ
(vi)
(b)
What type of blood flows through'2'?
State
fre frurction of &e pert nurnbered '5'.
Name thi membrane that covers the heart.
Explain the following terms:
(}
\:-,/
(ii)
(iii)
(iv)
(v)
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Name the parts labelled 1 to 4.
s23
Greenhouse
elfect,
'r
Turgor preisure.
Selective reabsorption
'Natality.
Pulse.
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