BIOLOGICAL SCIENCE Question Pattern ( Class XI )

SI.no" Unit

Section IMCQ

(1 mark)

Section IIveryShort

AnswerQuestions(1 mzirk)

Section IIShort

AnswerQuestions

I(2 marks)

Section IIShort

AnswerQuestions

il(3 marks)

Section IILong

AnswerQuestions( 5 marks)

TOTAL

Diversity ofLiving

Organisms

tx2:22X1:2 3X1:3 7

2,

StructuralOrganizations in Plants

andAnimals

1X3:3 lxl:t2X1:2 3X2:6 l2

3.

Cellstructure

andfunction

tx2:2

2X1:2 3X2:6 5X1:s t5

4.Plant

Physiolosylx4:4 lXl:1

2X1=2 3X2:6 5X1:5 18

5.Human

PhysiolosllX3:3 lX2:2 zxt:2 3X2:6 5X1:5 18

t4 4 10 27 l5 70

o Question paper will have two sections :

Section I : for MCQ ( Question Nos : 1 to 14 )Section II will have four groups:VSA ( I mark ) -one sentence answer ( QuestionNo : 1 to 4 )SA I ( 2 marks ) -- ( QuestionNo : 5 to 9 )SA II ( 3 marks ) -- ( Question No : 10 to 18 )LA ( 5 marks ) -- ( Question No : 19 to 21)

r There should be no fractions in the marks distribution.o For SA I, marks may be divided into 1+1o For SA II , marks may be divided into 2+lo For LA , marks may be divided into 3+2 or 4+1 .

o Option Summary:

Section I No Internal OptionSection II VSA lnternal Op on for at least any two questionsSection II SA I lnternal Opt on for at least any three questionsSection II SA II Internal Opt on for at least any five questionsSection II LA Intemal Option for at least any two questions

SPECIMEN QnEsrIolI srRuctuRt ( for clasc xI Annuar E:ramlnafion I

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BIOLOGICAL SCIENCES

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qnze-t

special credit utill be giuen for ansu)ers uhich are brief and to th.e point.Marks utill be deduded for spelling mistakes, untidiness and bad handutiting.

Figures in tle margin indicate full morlcs for the Etestions.

SECTION.I

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c) qsfrqrcmfrtr<p qnfirg cqrcq d) qlqfiT qXfrs 6e1-5e;

SECTION - II

GROUP - A

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r. Frrqnfr{ wrp co ?

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I T\rrn over

1.

2

GROUP. Bq(fte g-!$ilr{tr eH ( sA-r I

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Tqfrqrfir {eq sIR9E aqre fr 6{Fl ?

GROI'P - Cxfrs gsdqtr dd ( sA-rr I

fi={ffiElsrrrTrE r ft-qffirrTwqct ClwFmrrgR-o m.tt

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3

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GROI'P.- D

ft(glmtfr ?H ( LA )

fr&a q{Tefr EGFI qRI6s cq$s I (SsrqF"[$-d €c{RT errslwT

2.

3.

1.

2,

I+1

1+1

2

2+l

5

3+2

4+1

3.

t.

2.

3.

qtmtqRmd ffi ${r smq ol r wr $rc' "Ffirrccr yfr*T smq +-* r

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SECTION - IMCQ Type

1. During meiosis crossing over occurs at

a) diplotene

c) pachytene

2. Acetyl Co-A is produced from

a) glucose

c) oxaloacetic acid

b)

d)

b)

d)

leptotene

diakinesis.

p5rmvic acid

critic acid"

sElc1rloN - uGROUP - A

Very Sbort Answer Type Questlons wSAI

l. Who is the father of Taxonomy ?

2, Which ettzyn:Le present in the R.B.C. can catalyzn the following reaction ?

COr+HrO ? , H2CO3

GROUP - BShort Answer 1}pe Quertlons I SA-I l

I.

I

1

2

2.

3.

Label A and B.

In which phylla do we find colloblast cells and choanocyte cells ?

What is bicollateral vascular bundle ?

,

1+

1+

I T\rrn over

2,

3.

t

GROI'P - C

Short Answer Type euestions I SA_II I

1. What is biodiversity ? What is the role of zoological gardens in conservationof biodiversity ? 2+lExplain with reasons which theory of enryme action - Lock and Key Modelor Induced Fit Model is more acceptable. g

Draw a neat diagram of the longitudinal section of ultrastructure of amitochondrion and label an Orysome. 2 + I

GROUP - DLong Answer l}pe I I"A )

Schematically show the different steps of Glycolysis (names of enz5nnes notrequired). s

2. State tJrree advantages of hydroponics. State thenutrition.

role of potassium in plant3+2

What is4+1

1.

3, Discuss the role of hormones in regulating the functions of kidney.urgotelism ?