Science(Life) ExRugular

7/29/2019 Science(Life) ExRugular

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Roll No. of the Candidate

(Verified and found correct)

No. of Questions : 8 Time : 1 Hour 15 Mnts.

No. of Printed Pages : 24 Full Marks : 50

Full signature of the Invigilator

Date of Exam. : ...........................

QUESTION - CUM - ANSWER BOOKLET

SET : A

EX-REGULAR SCL

XR - 16 (B) SCIENCE (LIFE)

$Z {; :

L. S D Qs B { F D{ $# Q H Q S D Q {L { Q H Q L{ BA > F$#{ $# {s{L { {Q {Bd L ] B A >

Q. Ld s F, {{ sN S D Qs S {$# LZ{B AD {SsF vL -D Q SA >

FOR USE AT THE EVALUATION CENTRE Date of Evaluation :

Q. No. 1 2 3 4 5 6 7 8

Marks

GRAND TOTAL

Total marks in words (..........................................................................)

2013

AH

Signature of the Examiner

Regd. No.

Signature of the Scrutiniser

Regd. No.

Signature of the Deputy Chief Examiner

Regd. No.

Signature of the Chief Examiner

Regd. No.

Secretary


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SCL/SCIENCE (LIFE) (Ex-Reg.) 2 Contd.XR-16(B)

~ : GENERAL INSTRUCTIONS :

F S DQ{ D W H DL F Ad>The Question-cum-Answer Booklet consists of objective and subjective types of

questions.

{L {; D {Q# B{ ABd > ${{ { D {Q# AL >Required space has been provided against each objective type question. The

candidate has to choose correct choice and write the complete answer along

with its bit number in the space provided.

W DL {; { D {Q# {; ABd > ${{ { D {Q# AL >For subjective type questions required space for answer of each question has

been provided. The candidate has to answer the questions in the space provided.

{ A {L D { AL >Candidates are required to answer the questions as directed.

D L F F+{{ {Q# AL >Candidate should write the answer with blue / black ball point pen only.

S D Q{ $# , {s{LxB, Q H Q B F A d {{ B {; $Z15 sA#L A >Extra 15 minutes shall be given to read the Question Paper-cum-Answer

Booklet, verify the subject code, No. of questions, No. of printed pages and

illegible printing if any for exchange.

S D Q {{ S $# Q , AL { {{L~ D {Q# {; L > AN { {L~ D{Q# {{ LL Q {Q# AL >Extra rolling pages given at the end of this booklet may be utilised for writing the

answers or extra answers if necessary. Question serial numbers with bit

number if any should be written on the margin of the additional Answer Book.

: INSTRUCTIONS TO THE CANDIDATES :

A : Check up the number of questions and number of printed pages mentioned onthe top left-hand and right-hand corner of this page with the number of questionsand number of printed pages of this question paper soon after the receipt of thebooklet. Verify whether the Set symbol in this page is printed in all other pagesand write this Set symbol on the space provided for writing the Set symbol onthe cover page of the answer paper.

B : In case of discrepancy, collect a fresh correct question paper in exchange of thedefective one from the invigilator of your hall / room after receipt of the question-cum-answer booklet.

SET : A


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SET : A

SCL/SCIENCE (LIFE) (Ex-Reg.) 3 P.T.O.

XR-16(B)

${ $ f { D {{ >

Candidates are required to write the answers intheir own words as far as practicable.

x~ Q{ AB$ QSL Z Dd>The figures in the right-hand margin indicate marks.

D {{ {Q >Answerallquestions as directed

1. x~f L L > (` AL) 5

Describe the process of Oogenesis. (Diagram not required)

L/OR

SB{L lA > Q D H LL L$F ?

Explain glycolysis. How do nutrients and temperature influence

respiration ?


4/24

SET : A



5/24

SET : A


XR-16(B)

2. d H { { N o A{` L > (` AL) 5

Discuss blood circulation in the body of fish and frog.(Diagram not required )

L/OR

A{L L'~ ? A{L D{ xDBL$# ~s lA >(` AL)What is phototropism ? Explain Darwins experiment on phototropism.

(Diagram not required)


6/24

SET : A



7/24

SET : A


XR-16(B)

3. (i) f {~ L'~ ? FL D~ ~Zv{ {QD$# f {~ lA > 3

What is symbiotic nutrition ? Explain, with an example, symbiotic

nutrition seen in animals.

L/OR

{{Z " Ls S~ ' lA >

Explain Mendels law of dominance.


8/24

SET : A


(ii) f ~ LLSL lA > 3Explain the causes of water pollution.

L/OR"{s{LL S' lA > (L~ AL)Explain Photochemical smog. (Equation not required)


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SET : A


XR-16(B)


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SET : A


(iii) LL L H {S{ Sv H A {Q > (` AL) 3

Write the structure and location of renal tubule and glomerulus.(Diagram not required)

L/OR

A{L{~{ ALH f L {Q >

Write the role of carbon dioxide and water in photosynthesis.


11/24

SET : A


XR-16(B)

(iv) FL Z ` AZ L > ( AL) 3Draw a labelled diagram of the human respiratory system.

(Description not required)

L/OR

Sv B FL Z AZ L > ( AL)

Draw a labelled diagram showing the external structure of human

heart. (Description not required)


12/24

SET : A


4. Q# { {L~ {s D {Q : 24=8

Answer any four of the following :(i) B{$ A H L {Q >

Write the location and function of hypothalamus.

(ii) D{ ~ {~{ N L {Q >

Write the role of energy in the absorption of minerals in plants.

(iii) D{ L A{L# D{ L ?

How is flowering in plants dependent on photoperiodism ?

(iv) H{f L ~SL {Q >

Write the harmful effects of ozone depletion.

(v) D{ ~ {Q >

Write the effects of air pollution on plants.

Bit No.


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SET : A


XR-16(B)

Bit No.


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SET : A


Bit No.

Bit No.


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SET : A


XR-16(B)

5. {SsF Bs L{ D {Q : 15=5Answer in oneor twosentences :

(i) "AL~' L'~ ?

What is assimilation ?

D:


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SET : A


(ii) A{B L L{ ?

How does Bryophyllumpropagate ?

D:

(iii) D{ {SD L DL F ?

What are the benefits of transpiration in plants ?

D:

(iv) ~ L L'~ ?

What are the functions of placenta ?

D:


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SET : A


XR-16(B)

(v) {S H L L'~ ?

What are the ill-effects of global warming ?

D:

6. ~ L : 15=5Fill in the blanks :

(i) A. F. F. {~ >RNA is involved in the synthesis of .

D:

(ii) { NL~L{ A {SF A{s >White blood corpuscles appear colourless due to absence of

.

D:

(iii) L~ A{ B{sLA $F >Mitochondria is present in the part of sperm.

D:

(iv) {{s{ B ~ LB >

By mixing with petrol the level of pollution can be reduced.

D:

(v) L~LSL S{ {B{ L LF >Suspended particles in air are called .

D:


18/24

SET : A


7. {N {L { AB$# `{s D vLDs d

{Q:

15=5Pick up and write the correct answer from fourpossible choices given

under each of the following questions :

(i) {LDLs { Ws F ?

(` , QB, { , {` L )

Which work is performed without the direction of brain ?

(Dancing, Eating, Running, Excreting)

D:

(ii) {LDs S ?

(L, , sBs, $BFx)

Which one is the largest exocrine gland in human body ?

(Liver, Lungs, Pituitary, Thyroid)

D:

(iii) Af S~ Q {L{ ?

(46, 20, 16, 14)

What is the number of Chromosomes of onion ?

(46, 20, 16, 14)

D:

(iv) {LDs LL L {?(A{SS DS~, f A, L, )

Which is not a natural pollutant ?

(Volcanic eruption, Forest fire, Earthquake, Dead bodies)

D:


19/24

SET : A


XR-16(B)

(v) {LDs f ~f {S {?

(, L, AL f, x{+)Which is not a water borne disease ?

(Asthma, Jaundice, Typhoid, Dysentery)

D:

8. { AB$# Bs / LL L ~ { Q$# { / {Q : 15=5

Mark the relationship of the two words/group of words on the left-side and

fill in the blanks on the right-side with appropriate word/words :

(i) fA : {xA :: l+L : >

Earthworm : Nephridia :: Grasshopper : .

(ii) x. F. F. : $B:: A. F. F. : >DNA : Thymine :: RNA : .

(iii) f : fB{:: {L : >

Water transport : Xylem :: Transport of nutrients : .

(iv) {LL : Bx :: {S : >Bud : Hydra :: Gemma : .

(v) f {Lv S : {S H} :: AS&: >

Green house gas : Global warming :: Algal bloom : .


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SET : A


AN

ADDITIONAL PAGE


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XR-16(B)


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XR-16(B)


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