TN 11th Question Paper 2022 Zoology

No. of Printed Pages : 11
6037
£vÄ Gs
A Register Number

!6037IstYearZoology!
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

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1. uø\ |õ›¾ÒÍ BUêáøÚa ÷\ªUS® {Óª :

(A) ø©÷¯õ]ß (B) ø©÷¯õS÷Íõ¤ß

(C) BUiß (D) m÷µõ÷£õÛß

The pigment present in the muscle fibre to store oxygen is :

(a) Myosin (b) Myoglobin

(c) Actin (d) Troponin

2. BºÛøuß _ÇØ]°ß ÂøÍö£õ¸Ò ¯õx ?

(A) ³›¯õ (B) Põº£ß øh BUø\k

(C) A®÷©õÛ¯õ (D) ³›U Aª»®

The end product of Ornithine Cycle is :

(a) Urea (b) Carbon dioxide

(c) Ammonia (d) Uric acid

3. Eh¼ß ªP¨ö£›¯ |õͪÀ»õa _µ¨¤ __________ BS®.

(A) ¥Û¯À _µ¨¤ (B) ¤m³mh›

(C) AmŸÚÀ _µ¨¤ (D) øuµõ´k

__________ is the largest endocrine gland in the body.

(a) Pineal gland (b) Pituitary

(c) Adrenal gland (d) Thyroid

A

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4. ]Á¨£qÂß ÷©Ø¦Ó¨ £h»zvÀ Põn¨£kÁx __________ GÚ¨£k®.
(A) vµõ®÷£õø\mkPÒ (B) ø©U÷µõQίõ

(C) AUÑmi÷ÚõáßPÒ (D) AUÑmiÛßPÒ
Surface antigens on RBCs are called __________.

(a) thrombocytes (b) microglia

(c) agglutinogens (d) agglutinin

5. £À¾°º ußø© GßÓ £uzøua `mi¯Áº ¯õº ?
(A) A›ìhõmiÀ (B) ÁõÀhº ÷µõ\ß

(C) G¤.i. Põs÷hõÀ (D) G.â. hõßì÷»
Who coined the term ‘Biodiversity’ ?

(a) Aristotle (b) Walter Rosen

(c) AP.de. Candole (d) A.G. Tansley

6. G› £mk __________ ¼¸¢x ö£Ó¨£kQÓx.
(A) AmhõPì ›]Û

(B) B¢u÷µ°¯õ Aìéõö©ß]ì

(C) £õ®¤Uì ÷©õ›

(D) B¢u÷µ°¯õ ø©¼mhõ
Eri Silk is obtained from :

(a) Attacus ricini

(b) Antheraea assamensis

(c) Bombyx mori

(d) Antheraea mylitta

A [ v¸¨¦P / Turn over

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7. ö£õ¸zxP :
(1) ¼¨÷£ì (i) ìhõºa
(2) ö£¨]ß (ii) Põ]ß
(3) öµßÛß (iii) ¦µu®
(4) h¯¼ß (iv) ¼¨¤k
(A) (1) - (iv), (2) - (iii), (3) - (ii), (4) - (i)
(B) (1) - (iv), (2) - (ii), (3) - (i), (4) - (iii)
(C) (1) - (iii), (2) - (ii), (3) - (iv), (4) - (i)
(D) (1) - (iii), (2) - (iv), (3) - (ii), (4) - (i)
Match the following :
(1) Lipase (i) Starch
(2) Pepsin (ii) Casein
(3) Rennin (iii) Protein
(4) Ptyalin (iv) Lipid
(a) (1) - (iv), (2) - (iii), (3) - (ii), (4) - (i)
(b) (1) - (iv), (2) - (ii), (3) - (i), (4) - (iii)
(c) (1) - (iii), (2) - (ii), (3) - (iv), (4) - (i)
(d) (1) - (iii), (2) - (iv), (3) - (ii), (4) - (i)

8. PÚ\xµ ÁiÁ G¤w¼¯zvß •UQ¯¨ £o :
(A) £õxPõ¨¦ (B) _µ¨¦
(C) EÔg_uÀ (D) (B) ©ØÖ® (C) Cµsk®
The main function of the cuboidal epithelium is :
(a) Protection (b) Secretion
(c) Absorption (d) Both (b) and (c)

9. J¸ \õuõµn ©ÛuÛß ‰a_UPõØÖ AÍÄ :
(A) 500 ª.¼. (B) 800 ª.¼.
(C) 1100 - 1200 ª.¼. (D) 1200 ª.¼.
The Tidal Volume of a normal person is :
(a) 500 mL (b) 800 mL
(c) 1100 - 1200 mL (d) 1200 mL

A

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10. ©Ûu ‰øÍ°ß G¨£Sv EhÀ öÁ¨£{ø» Pmk¨£õmkhß öuõhº¦øh¯x ?

(A) •SÍ® (B) ]Ö‰øÍ

(C) øí¨÷£õu»õ©ì (D) ö£¸‰øÍ

Which part of the human brain is concerned with the regulation of body
temperature ?

(a) Medulla Oblongata (b) Cerebellum

(c) Hypothalamus (d) Cerebrum

11. GzöuõSv E°›PÎß ¦Óa\mhP® øPmiÚõ»õÚ Q³miQøÍU öPõskÒÍx ?

(A) PqUPõ¼PÒ (B) ÁøÍuø\¨ ¦ÊUPÒ

(C) •m÷uõ¼PÒ (D) xøͲh¼PÒ

Exoskeleton of which phylum consists of chitinous cuticle ?

(a) Arthropoda (b) Annelida

(c) Echinodermata (d) Porifera

12. P¸Áͺa]ø¯ __________ •øÓ°À PshÔ¯»õ®.

(A) ECG (B) AÀmµõ ÷\õ÷ÚõQµõ®

(C) EEG (D) X&PvºPÒ

Foetus development can be observed by using __________.

(a) ECG (b) Ultra sonogram

(c) EEG (d) X-Ray

A [ v¸¨¦P / Turn over

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13. uÁøÍ°ß uø»¨¤µmøh°À Põn¨£k® ö\ÄÒPÒ Gøu EnºzxQßÓÚ ?
(A) Á¸® Põ»[PÎÀ uÁøÍPÒ ö\ÄÒPøͨ ö£Ö®.

(B) •ß¦ «ßPЮ C¸ÁõÌÂPÍõ´ C¸¢uÚ.

(C) ö\ÄÒPÒ öPõsh •ß÷ÚõiPμ¸¢x uÁøÍPÒ ÷uõßÔÚ.

(D) uÁøÍ Jzu •ß÷ÚõiPμ¸¢x «ßPÒ ÷uõßÔÚ.
Presence of gills in the tadpole of frog indicates that :

(a) Frogs will have gills in future.

(b) Fishes were amphibious in the past.

(c) Frogs evolved from gilled ancestor.

(d) Fishes evolved from frog - like ancestors.

14. •uÀ •Òö;®¦ ©ØÖ® Aa_ •Òö;®¦PÐUS Cøh÷¯ EÒÍ ‰miß
ö£¯º :
(A) ÷\n ‰mk (B) E¯Ä ‰mk

(C) RÀ ‰mk (D) •øÍAa_ ‰mk
Name of the joint present between the atlas and axis is :

(a) Saddle joint (b) Synovial joint

(c) Hinge joint (d) Pivot joint

15. £UPU÷Põmk EnºÄ EÖ¨¦PÒ __________ CÀ Põn¨£kQÓx.
(A) uspº £õ®¦ (B) \»©õßhº

(C) «ß (D) uÁøÍ
Lateral line sense organs occur in __________.

(a) Water snake (b) Salamander

(c) Fish (d) Frog

A

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£Sv & II / PART - II

SÔ¨¦ : GøÁ÷¯Ý® BÖ ÂÚõUPÐUS ©mk® Âøh¯ÎUPÄ®. ÂÚõ Gs
24 &US Pmhõ¯©õP Âøh¯ÎUPÄ®. 6x2=12

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

16. öÁÒøÍ Ai¨÷£õì v_øÁ¨ £Ê¨¦ Ai¨÷£õì v_¼¸¢x ÷ÁÖ£kzxP.
Differentiate white adipose tissue from brown adipose tissue.

17. Bs uÁøÍø¯ ö£s uÁøÍ°hª¸¢x GÆÁõÖ ÷ÁÖ£kzxÁõ´ ?
How will you differentiate the male frog from female frog ?

18. ]ÖSh¼À ©mk® EÔg]PÒ EÒÍÚ. Hß Cøµ¨ø£°À CÀø» ?
Why are Villi present in the intestine and not in the stomach ?

19. Cu¯z xi¨¦ GÚ¨£kÁx ¯õx ?
What is called Heart Beat ?

20. ]Ö}º E¸ÁõUPzvß ‰ßÖ ö\¯À£õkPÎß ö£¯›øÚ GÊxP.
Name the three processes involved in Urine formation.

21. öÁsm›UQÒPÎß _Áº B›UQÒPÎß _Áøµ Âhz uizxU Põn¨£kQÓx. Hß ?
The wall of the Ventricle is thicker than the auricle. Give reason.

22. íõº÷©õßPÒ GߣøÁ ÷ÁvzyxÁºPÒ GÚ¨£k® & {¯õ¯¨£kzxP.
Hormones are known as chemical messenger. Justify.

A [ v¸¨¦P / Turn over

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23. Cµzu ö\ÀPÎß GsoUøPø¯ PnUQkÁvÀ £¯ß£k® ]Á¨¦ ©ØÖ® Cµzu
öÁÒøÍ AqUPøÍ }ºUPa ö\´²® vµÁ[PÎß ö£¯ºPøÍ GÊxP.
Name the RBC and WBC diluting fluids used in blood cell counting.

24. Gsön´ £»Põµ[PøÍ }sh |õmPÐUS EmöPõsk Á¸® ÷£õx ¤zuU PØPÒ
÷uõßÓ»õ®. ÂÍUSP.
Prolonged intake of oily snacks may lead to gall stone formation. Explain.

£Sv & III / PART - III

SÔ¨¦ : GøÁ÷¯Ý® BÖ ÂÚõUPÐUS ©mk® Âøh¯ÎUPÄ®. ÂÚõ Gs
6x3=18
33 &US Pmhõ¯©õP Âøh¯ÎUPÄ®.

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

25. ÷£¸»S – BºUQ¯õ £ØÔ SÔ¨ö£ÊxP.
Write a note on the Domain Archaea.

26. ¤ÍÄ EhØSÈø¯ EnĨ £õøu EhØSȲhß J¨¤kP.
Compare Schizocoelom with Enterocoelom.

27. H›÷¯õ»õº v_ £h® Áøµ¢x £õP[PøÍU SÔUPÄ®.
Draw and label the areolar tissue.

28. ø|mµáß |õº÷Põêì {ø» GÚ¨£kÁx ¯õx ?
What is a condition called ‘Nitrogen narcosis’ ?

A

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29. öPõkUP¨£mh £hzvÀ SÔUP¨£mkÒÍ £õP[PøÍ GÊxP.

Write the marked parts in the given diagram.

30. ]Ö}µP¨ £oPøÍ ö|Ô¨£kzx® íõº÷©õøÚa _µ¨£vÀ Cu¯zvß £[øP
ÂÍUSP. A¢u íõº÷©õÛß ö£¯º GßÚ ?
Explain the heart’s role in secreting a hormone that regulates renal function.
What hormone is this ?

31. Sa] ©ØÖ® T®¦ ö\ÀPøÍ ÷ÁÖ£kzxP.
Differentiate between rod and cone cells.

A [ v¸¨¦P / Turn over

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32. 3F íõº÷©õß GÚ AøÇUP¨£kÁx Gx ? Põµn[PøÍU TÖP.

What are referred as ‘3F hormone’ ? Give reasons.

33. ADH &íõº÷©õß _µ¨ø£ Gvº©øÓ ©ØÖ® ÷|º©øÓ ¤ßÞmh® Pmk¨£kzx&
QÓx. C¢{PÌÄPÐUPõÚ {£¢uøÚPøÍ ÂÍUSP.
ADH is controlled by both positive and negative feedback mechanisms. Explain
the conditions for these two mechanisms.

£Sv & IV / PART - IV
SÔ¨¦ : AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®. 5x5=25

Note : Answer all questions.

34. (A) ö£¸®£õ»õÚ Â»[SPÎÀ Põn¨£k® ö£õxÁõÚ |õßS £s¦PÒ ¯õøÁ ?
ÂÍUSP.
AÀ»x

(B) »õ®¤m÷hõ ©õ›mj°ß ¦Óz÷uõØÓzøu ÂÍUSP.
(a) What are the four common characteristics found in most animals ? Explain.
OR
(b) Describe the external morphology of Lampito mauritii.

35. (A) Cøµ¨ø£°À |øhö£Ö® ö\›©õÚzøu ÂÁ›UPÄ®.
AÀ»x

(B) Cµzu® Põº£ß&øh&BUøéøh v_UPμ¸¢x ~øµ±µ¾US GÆÁõÖ
PhzxQÓx ?
(a) Explain the process of digestion in the stomach.
OR

(b) How does the blood transport CO2 from the tissue cells to the lungs ?

A

11 6037

36. (A) Cu¯ C¯UPa _ÇØ] Gߣx ¯õx ? ÂÍUSP.
AÀ»x
(B) G¾®¦•ÔÄ HØ£k® Âu® ©ØÖ® G¾®¦•ÔÄ Sn©õuÀ £ØÔ ÂÁ›UPÄ®.
(a) What is Cardiac Cycle ? Explain.
OR
(b) Write about the mechanism and healing of bone fracture.

37. (A) ©Ûu ‰øÍ°ß }ÒöÁmkz ÷uõØÓzøu¨ £h® Áøµ¢x £õP[PøÍU
SÔUPÄ®.
AÀ»x
(B) øuµõ´k _µ¨¤ _µUS® íõº÷©õßPÒ ¯õøÁ ? AÁØÔß £oPøÍU
SÔ¨¤kP.
(a) Draw and label the L.S. of human brain.
OR
(b) What are the hormones secreted by thyroid gland ? Mention their functions.

38. (A) X &PvºPÒ GߣøÁ ¯õøÁ ? AÁØÔß ©¸zxÁ •UQ¯zxÁzøuU
SÔ¨¤kP.
AÀ»x
(B) £õ®¤Uì ÷©õ›°ß ÁõÌUøP _ÇØ]ø¯ £h[PÎß ‰»® ÂÍUSP.
(a) What are X-rays ? Mention its clinical significance.
OR
(b) Illustrate the life cycle of Bombyx mori with the help of diagrams.

-o0o-

A [ v¸¨¦P / Turn over