Tamil Nadu 11th Std Model Question Paper Zoology

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No. of Printed Pages : 11
3437 (NS)
!3437NSIstYearZoology! £vÄ Gs
Register Number

PART - III
»[Q¯À / ZOOLOGY
( uªÌ ©ØÖ® B[Q» ÁÈ / Tamil & English Version)

Põ» AÍÄ : 3.00 ©o ÷|µ® ] [ ö©õzu ©v¨ö£sPÒ : 70
Time Allowed : 3.00 Hours ] [ Maximum Marks : 70

AÔÄøµPÒ : (1) AøÚzx ÂÚõUPЮ \›¯õP £vÁõQ EÒÍuõ GߣuøÚ
\›£õºzxU öPõÒÍÄ®. Aa_¨£vÂÀ SøÓ°¸¨¤ß AøÓ
PsPõo¨£õÍ›h® EhÚi¯õP öu›ÂUPÄ®.
(2) }»® AÀ»x P¸¨¦ ø©°øÚ ©mk÷© GÊxÁuØS®
AiU÷PõikÁuØS® £¯ß£kzu ÷Ásk®. £h[PÒ ÁøµÁuØS
ö£ß]À £¯ß£kzuÄ®.

Instructions : (1) Check the question paper for fairness of printing. If there is any lack of
fairness, inform the Hall Supervisor immediately.
(2) Use Blue or Black ink to write and underline and pencil to draw diagrams.

£Sv & I / PART - I
SÔ¨¦ : (i) AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®. 15x1=15

(ii) öPõkUP¨£mkÒÍ ©õØÖ ÂøhPÎÀ ªPÄ® Hئøh¯
Âøhø¯z ÷uº¢öukzxU SÔ±mkhß Âøh°øÚ²® ÷\ºzx
GÊuÄ®.
Note : (i) Answer all the questions.
(ii) Choose the most appropriate answer from the given four alternatives and
write the option code and the corresponding answer.

[ v¸¨¦P / Turn over

3437 (NS) 2

1. ø£¨÷µõ¤ÍõìmkPÒ, ÷©U÷µõ÷£äPÒ ©ØÖ® ©õìm ö\ÀPÒ BQ¯øÁ
Põn¨£kÁx :
(A) _µ¨¤ G¤w¼¯® (B) S¸zöu¾®¦z v_
(C) H›÷¯õ»õº v_ (D) Ai÷£õì v_
Fibroblasts, macrophages and mast cells are present in __________.
(a) Glandular epithelium (b) Cartilage tissue
(c) Areolar tissue (d) Adipose tissue

2. ~÷©miU G¾®¦PÒ GvÀ Põn¨£kQßÓÚ?
(A) vª[Q»® (B) _Óõ (C) uÁøÍ (D) ¦Óõ
Pneumatic bones are found in __________.
(a) Whale (b) Shark (c) Frog (d) Pigeon

3. PÀ½µÀ & Pøn¯® ö£õx|õÍzvß xøÍ ______ `Ǩ£mkÒÍx.
(A) uø\ ©i¨¦PÒ (B) QÎìéÛß EøÓ
(C) Ji _¸US uø\ (D) ¼£ºPß ©i¨¦PÒ
The opening of the hepato-pancreatic duct is guarded by :
(a) Gastric rugae (b) Glisson’s capsule
(c) Sphincter of Oddi (d) Crypts of Leiberkuhn

4. G¢u ÁøP¨£õmk P¸Â hõU\õß £ØÔ¯ •Ê ÂÁµ[PøÍ öPõskÒÍx?
(A) ÷©õ÷ÚõQµõL¨ (B) ÁøP¨£õmkz vÓÄ÷PõÀ
(C) öíº÷£›¯® (D) uõÁµ®
Which taxonomic aid gives comprehensive information about a taxon ?
(a) Monograph (b) Taxonomic key
(c) Herbarium (d) Flora

3 3437 (NS)

5. uÁÓõÚ ÁõUQ¯zøuz ÷uº¢öukUPÄ®.
(A) {U÷Põiß, ¦øP¤izuø»z yshUTi¯ ÷£õøu¨ ö£õ¸ÍõS®.
(B) ]¼U÷Põ]ì ©ØÖ® Aìö£ì÷hõêì öuõÈÀ \õº¢u _Áõ\
÷|õ´PÍõS®.
(C) G®Lø£^©õ ©ØÖ® Põ\÷|õ´ £õUj›¯zuõÀ HØ£kQÓx.
(D) {÷©õÛ¯õ Gߣx ~øµ±µÀPÒ Ã[Q¯ {ø»¯õS®.
Find the incorrect statement :

(a) Nicotine is the stimulant of smoking.

(b) Silicosis and asbestosis are occupational respiratory disorders.

(c) Emphysema and Tuberculosis are caused by bacteria.

(d) Pneumonia is the inflammation of lungs.

6. ]Ö}º E¸ÁõUPzvØS SøÓ¢u AÍÄ }ºz÷uøÁ²øh¯ E°›PÒ :
(A) Cµ\õ¯Ú }UQPÒ (B) ³›¯õ }UQPÒ
(C) A®÷©õÛ¯õ }UQPÒ (D) ³›UAª» }UQPÒ
Animals requiring minimum amount of water to produce urine are :

(a) chemotelic (b) ureotelic

(c) ammonotelic (d) uricotelic

7. •Ç[øP°ß Tºø© £Sv :
(A) CønÄ (B) HS÷µõª¯ß }m]
(C) QÎ|õ´k SÈ (D) J¼Qµõnß }m]
The pointed portion of the elbow is :

(a) symphysis (b) acromion process

(c) glenoid cavity (d) olecranon process

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3437 (NS) 4

8. TØÖ (A) : Cµzua ]Á¨£qUPÎÀ EmP¸, ø©m÷hõPõsi›¯õ,
›÷£õ÷\õ®PÒ ©ØÖ® AP¨¤Íõ\ Áø»¨¤ßÚÀ ÷£õßÓ ö\À
~sqÖ¨¦PÒ Põn¨£hÂÀø».
Põµn® (R) : AvP©õÚ ï÷©õS÷Íõ¤øÚ öPõÒÁuß ‰»® CøÁ
ö\ÀPÎß BUêáß HئzvÓøÚ AvP›zxU öPõÒQßÓÚ.
(A) (A) & \› ©ØÖ® (R) & \›; BÚõÀ (R) - (A) &ø¯ \›¯õP ÂÍUPÂÀø».
(B) (A) & \› ©ØÖ® (R) & \›; (R) - (A) &ø¯ ÂÍUSQÓx.
(C) (A) & uÁÖ BÚõÀ (R) & \›
(D) (A) & \› ©ØÖ® (R) & uÁÖ
Assertion (A) : The red blood corpuscles are devoid of nucleus, mitochondria,
ribosomes and endoplasmic reticulum.
Reason (R) : The absence of these organelles maximises the oxygen carrying
capacity by accommodating more haemoglobin.
(a) (A) is correct and (R) is also correct but (R) does not explain (A).
(b) (A) is correct and (R) is also correct; (R) explains (A).
(c) (A) is wrong but (R) is correct.
(d) (A) is correct and (R) is wrong.

9. \søh°k® £s¦ öPõsh Âøͯõmk ÁøP ÷PõÈ°Ú® __________.
(A) ö»Uíõºß (B) ]mhPõ[ (C) ¤µ®©õ (D) A^À
The game breed noted for its pugnacity is :
(a) Leghorn (b) Chittagong (c) Brahma (d) Aseel

10. ÷Põimh Chzøu \›¯õÚ Cøn²hß {µ¨¦P :
(i) ¦zuPa ö\ÄÒPÒ & __________
(ii) __________ & ÷uÒ
(A) «ßPÒ ; CµzuUSÇÀPÒ {µ®¤¯ ~øµ±µÀ
(B) C¸ÁõÌÂPÒ ; ‰a_USÇÀ
(C) ¼•»ì ; ¦zuP ~øµ±µÀ
(D) ©s¦ÊUPÒ ; Gί µÁÀ
Fill in the blanks with correct matching pair :
(i) Book gills - __________;
(ii) __________ - Scorpions
(a) Fishes ; Vascularised lungs
(b) Amphibians ; Tracheal tubes
(c) Limulus ; Book lungs
(d) Earthworms ; Simple diffusion

5 3437 (NS)

11. ö£õ¸zxP :
( 1 ) »õì÷éõ ö\ÀPÒ (i) ÁøÍuø\ ¦ÊUPÒ
( 2 ) _hº ö\ÀPÒ (ii) ö©À¾h¼PÒ
( 3 ) S÷Íõ÷µõS¹›ß (iii) i÷ÚõL÷£õµõ
( 4 ) î÷©õø\¯Ûß (iv) umøh¦ÊUPÒ

(A) (1)-(iii), (2)-(iv), (3)-(ii), (4)-(i)
(B) (1)-(iv), (2)-(ii), (3)-(i), (4)-(iii)
(C) (1)-(ii), (2)-(iii), (3)-(iv), (4)-(i)
(D) (1)-(iii), (2)-(iv), (3)-(i), (4)-(ii)
Match :
(1) Lasso cells (i) Mollusca
(2) Flame cells (ii) Annelida
(3) Chlorocruorin (iii) Ctenophora
(4) Haemocyanin (iv) Platyhelminthes

(a) (1)-(iii), (2)-(iv), (3)-(ii), (4)-(i)
(b) (1)-(iv), (2)-(ii), (3)-(i), (4)-(iii)
(c) (1)-(ii), (2)-(iii), (3)-(iv), (4)-(i)
(d) (1)-(iii), (2)-(iv), (3)-(i), (4)-(ii)

12. |õÒ\õº JÊ[Pø©Ä C¯UPzvøÚ Pmk¨£kzx® íõº÷©õß Gx?
(A) ö©»÷hõÛß (B) ö©»Ûß
(C) BUê÷hõ]ß (D) Áõ÷éõ¨µìêß
The hormone which regulates the circadian rhythm of our body is __________.
(a) melatonin (b) melanin
(c) oxytocin (d) vasopressin

13. £õêmµõß öÁÎÂk® ÷hõ÷©õQµõL¤U (PET) ì÷Pß E£÷¯õP¨£kzxÁx
__________.
(A) APa]Á¨¦ PvºPÒ (B) PvºÃa_ I÷\õ÷hõ¨¦PÒ
(C) ¦Ó FuõU PvºPÒ (D) «ö¯õ¼
Positron Emission Tomography (PET) uses :
(a) IR waves (b) Radio isotopes
(c) UV rays (d) Ultrasound

[ v¸¨¦P / Turn over

3437 (NS) 6

14. §¢÷uøÚ ÷uÚõP ©õØÖ® ö|õv :
(A) ø»÷£ì (B) ø\÷©ì
(C) CßÁº÷hì (D) Aª÷»ì
The enzyme which converts nectar to honey :

(a) lipase (b) zymase

(c) invertase (d) amylase

15. ©Ûu ‰øÍ°ß G¨£Sv v¸¨v ø©¯©õP ö\¯À£kQÓx?
(A) £õßì (B) u»õ©ì
(C) øí¨÷£õu»õ©ì (D) ]Ö‰øÍ
Which part of human brain acts as satiety centre ?

(a) Pons (b) Thalamus

(c) Hypothalamus (d) Cerebellum

£Sv & II / PART - II
SÔ¨¦ : GøÁ÷¯Ý® BÖ ÂÚõUPÐUS Âøh¯ÎUPÄ®. ÂÚõ Gs 24&US
Pmhõ¯©õP Âøh¯ÎUPÄ®. 6x2=12

Note : Answer any six questions. Question No. 24 is compulsory.

16. EhØSÈ E¸ÁõS® ußø©°ß Ai¨£øh°À Esø© EhØSÈ
Eøh¯øÁPÒ GÆÁõÖ ¤›UP¨£kQßÓÚ?
How are eucoelomates classified based on the mode of formation of coelom ?

17. ¤ß÷Úõmh ÷|õ´ & SÔ¨¦ ÁøµP.
Write a note on GERD.

7 3437 (NS)

18. ìöhzuì÷Põ¨¤ß £¯ßPøÍ Á›ø\¨£kzxP.
Enumerate the uses of stethoscope.

19. öíß÷» ÁøÍÄ }Ízvß Ai¨£øh°À ö|L£µõßPøÍ ÁøP¨£kzxP.
Classify nephrons based on the length of Henle’s loop.

20. xPÒPÐøh¯ öÁÒøͯqUPøÍ xPÒPÍØÓ öÁÒøͯqUPμ¸¢x
÷ÁÖ£kzxP.
Bring out the differences between granulocytes and agranulocytes.

21. 4D SøÓ£õmk ÷|õ´, öPõk[S¸va÷\õøP ÷|õ´ BQ¯ÁØÔØPõÚ
øÁmhªß SøÓ£õk ©ØÖ® ÷|õ°ß AÔSÔPøÍ GÊxP.
Mention the deficiency and symptoms of 4D-syndrome and Pernicious Anaemia.

22. C¯ß ©¸zxÁ® £ØÔ SÔ¨¦ ÁøµP.
Give a note on Physiotherapy.

23. AÚõì÷hõ÷©õ\ì GßÓõÀ GßÚ?
What are anastomoses ?

24. RÌUPshÁØÔß öuõSv°øÚ GÊxP.
(i) B¨¤Ò |zøu (ii) \õU÷PõQÍõ\ì
(iii) |m\zvµ «ß (iv) AìPõ›ì
Identify the phylum for the following :

(i) Apple snail (ii) Saccoglossus

(iii) Star fish (iv) Ascaris

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3437 (NS) 8

£Sv & III / PART - III
SÔ¨¦ : GøÁ÷¯Ý® BÖ ÂÚõUPÐUS Âøh¯ÎUPÄ®. ÂÚõ Gs 33&US
Pmhõ¯©õP Âøh¯ÎUPÄ®. 6x3=18

Note : Answer any six questions. Question No. 33 is compulsory.

25. ö£¸®£õ»õÚ Â»[S v_UPÎÀ ]Ó¨¦ \¢v¨¦PÒ ö\ÀPÐUQøh÷¯
Aø©¨¦Ÿv¯õÚ ©ØÖ® ö\¯ÀŸv¯õÚ ¤øn¨¦PøÍ HØ£kzxQßÓÚ.
AÆÁøP¯õÚ ö\À \¢v¨¦PøÍ ÂÍUSP.
Most of the animal tissues have specialised junctions to provide structural and functional
links. Explain the types of cell junctions.

26. J¸ ©Ûuß, £¸zv öuõÈØ\õø»°À Ph¢u 15 BskPÍõP ÷Áø» ö\´x
Á¸QÓõº. A[SÒÍ y_¨ ö£õ¸mPÒ AÁ¸øh¯ _Áõ\ £õøuø¯ £õvzx
_Áõ\zvß £oPøͲ® ukzux. _Áõ\ ©sh»zvß •UQ¯ £oPøÍ
AÁ¸US £mi¯¼mkU TÖP.
A man has been working in a cotton industry for the past 15 years. The dust in the
industry affected his respiratory tract thereby hindering respiratory functions. List out
the primary functions of the respiratory system to him.

27. |µ®¦ ö\À¼ß £h® Áøµ¢x £õP[PøÍU SÔUPÄ®.
Draw a neat labelled sketch of a neuron.

28. (i) Á¯uõÚÁºPÒ AiUPi ÷|õ´Áõ´¨£kÁx Hß?
(ii) ì÷£õ÷µõiU Põ´hº GßÓõÀ GßÚ?
(i) Why do old people fall sick often ?

(ii) What is sporodic goitre ?

29. uÁøÍPÎÀ, £õÀÁÈ ÷ÁÖ£õmk ußø© GÆÁõÖ Põm]£kzu¨£kQÓx?
How is sexual dimorphism exhibited in frogs ?

9 3437 (NS)

30. ÷£õº ÂøÍÄ ©ØÖ® íõÀ÷hß ÂøÍÄ £ØÔ SÔ¨¦ ÁøµP.
State Bohr effect and Haldane effect.

31. ©õº¦UTmøh E¸ÁõUS® »õ G¾®¦PÎß ÁøPPÒ ¯õøÁ?
What are the different types of rib bones that form the rib cage ?

32. J¸ ©õnÁº ußÝøh¯ £ÒÎ AÔ¯À PsPõm]US ©Ûu PÈÄ}UP
©sh»zvß ©õv›ø¯ ö\´v¸¢uõº. ¤ßÁ¸ÁÚÁØÔØS E°›¯À
ö\õØPøÍ Aøh¯õÍ® Psk AÁ¸US Eu ö\´Áõ¯õ?
(A) ]Ö}º uØPõ¼P©õP ÷\ªUP¨£hÀ &
(B) ]Ö}º PÈzu¾UPõÚ AÔ¯À ö£¯º &
(C) ÷uøÁ¯ØÓ ö£õ¸mPøÍ Eh¼¼¸¢x öÁÎ÷¯ØÖuÀ &
A student designed a model of the human excretory system for his school science
exhibition. Can you help him in finding the biological terms for the following :
(a) Temporary storage of urine
(b) Scientific term for urination
(c) Removal of unwanted substances from the body.

33. |õáõ |õáõ J¸ SÔ¨¤mh ö£¯›k® •øÓ°ß GkzxUPõmhõS®.
A®•øÓø¯ Aøh¯õÍ® Psk Áøµ¯ÖUPÄ®.
Naja Naja is an example for a particular type of nomenclature. Identify and define the
nomenclature type.
£Sv & IV / PART - IV
SÔ¨¦ : AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®. 5x5=25
Note : Answer all the questions.

34. (A) »[S»Pzvß ö£›¯ öuõSv°Ýøh¯ ö£õxÁõÚ £s¦Pøͨ
£mi¯¼kP.
AÀ»x
(B) G¤w¼¯z v_UPÎß H÷uÝ® I¢x ö\¯À£õkPøÍU TÔ Aaö\¯¼À
Dk£k® v_øÁ GkzxUPõmkhß TÖP.
(a) List the general characteristics of the largest phylum of Kingdom Animalia.
OR
(b) Name any five important functions of epithelial tissue and provide at least one
example that explains the function.

[ v¸¨¦P / Turn over

3437 (NS) 10

35. (A) Am›Ú¼ß íõº÷©õß £oPøÍ ÂÁõvUPÄ®.
AÀ»x
(B) ©¸zxÁ {Ç¾Ö öuõÈÀ~m£zøu E£÷¯õP¨£kzx® P®¨³mhm
÷hõ÷©õQµõL¤°ß ©¸zxÁ •UQ¯zxÁ® GßÚ?
(a) Discuss the functions of adrenalin hormone.
OR
(b) What is the clinical significance of the medical imaging technology employing
computed tomography ?

36. (A) }º E°› £°º Áͺ¨¦ \«£ Põ»[PÎÀ ÷uõßÔ¯ öuõÈÀ~m£©õS®.
C®•øÓ°ß |ßø©PøÍ GkzxUTÔ C¢u öuõÈÀ~m£zvØS
ÂȨ¦nºÄ HØ£kzxP.
AÀ»x
(B) Em_Áõ\® ©ØÖ® öÁÎa_Áõ\zvÀ |øhö£Ö® {PÌÄPøÍ
Á›ø\¨£kzv J¨¤kP.
(a) Aquaponics is a recently evolved technique combining aquaculture and
hydroponics. Create an awareness about this technique by explaining its
advantages.
OR
(b) Compare the sequential events that take place during inspiration and expiration.

37. (A) ¦ÓõÂß, SÇÀ usk CÓQß Aø©¨ø£ öuÎÁõÚ £õP® SÔUP¨£mh
£hzxhß ÂÍUSP.
AÀ»x
(B) ]ÖSh¼À \UPì Gßh›Pì Eu²hß |øhö£Ö® ÷Áv°¯À
©õØÓ[PøÍ Á›ø\¨£kzxP.
(a) Describe the quill feather of pigeon with a neat labelled sketch.
OR
(b) Enumerate the chemical changes that take place with the help of succus entericus
in the small intestine.

11 3437 (NS)

38. (A) ìT£õ ‰ÌQPÒ GvºöPõÒЮ ö£õxÁõÚ £õv¨¦PøÍ ÂÁ›UPÄ®.
AÀ»x
(B) Sa] ©ØÖ® T®¦ ö\ÀPÐUPõÚ ÷ÁÖ£õkPøÍ GÊxP.

(a) Explain the common problems encountered by SCUBA divers.
OR
(b) Explain the differences between Rod cells and Cone cells.

-o0o-

[ v¸¨¦P / Turn over