TN 11th Question Paper 2024 Zoology

TN PUBLIC EXAM

QUESTION
PAPER
2024

No. of Printed Pages : 11
7637
£vÄ Gs
A Register Number

!7637IstYearZoology!
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 |õßS ©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

7637 2

1. ]Á¨£qUPøÍ }ºUPa ö\´²® vµÁ® :
(A) ÷í¯®ì vµÁ® (B) hºUì vµÁ®
(C) L÷£õ¼ß L¥ÚõÀ vµÁ® (D) hõ´éõß vµÁ®
Diluting fluid used for total RBC count is :

(a) Hayem’s solution (b) Turk’s solution

(c) Folin Phenol reagent (d) Toisson solution

2. ]Ö}µP ~sSÇÀPÎÀ }º «Í EÔg\¨£ku¾US EuÄ® íõº÷©õß :
(A) Bßiøh³›miU íõº÷©õß
(B) ÷Põ¼]ì÷hõøPÛß
(C) £õßQ›÷¯õø\ªß
(D) Bg]÷¯õöhß]ß II
The hormone which helps in the reabsorption of water in kidney tubules is :

(a) antidiuretic hormone

(b) cholecystokinin

(c) pancreozymin

(d) angiotensin II

3. Cu¯ C¯UPa _ÇØ]°ß Põ» AÍÄ :
(A) 0.5 ÂÚõiPÒ (B) 0.6 ÂÚõiPÒ
(C) 0.7 ÂÚõiPÒ (D) 0.8 ÂÚõiPÒ
Duration of the Cardiac Cycle :

(a) 0.5 seconds (b) 0.6 seconds

(c) 0.7 seconds (d) 0.8 seconds

A

3 7637

4. ÷|õ´zuøhUPõ¨¦hß öuõhº¦øh¯ _µ¨¤ Gx ?
(A) øu©ì _µ¨¤ (B) ¥Û¯À _µ¨¤
(C) £õµõøuµõ´k _µ¨¤ (D) Am›ÚÀ _µ¨¤
Which of the following gland is related with immunity ?

(a) thymus gland (b) pineal gland

(c) parathyroid gland (d) adrenal gland

5. Põv¾ÒÍ G¨£Sv AÊzu Aø»PøÍa ö\¯À{ø» ªßÚÊzu©õP ©õØÖQÓx ?
(A) }ÒÁmh¨ £»Po (oval window)
(B) ö\¨£øÓ \ÆÄ
(C) AøµÁmhU SÇÀPÒ
(D) Põºmøh EÖ¨¦
Which structure in the ear converts pressure waves to action potentials ?

(a) Oval window

(b) Tympanic membrane

(c) Semicircular canal

(d) Organ of Corti

6. Psh Aø©¨¦ Cuß •UQ¯¨ £s¦ :
(A) PqUPõ¼PÒ (B) ÁøÍzuø\¨ ¦ÊUPÒ
(C) SȲh¼PÒ (D) •m÷uõ¼PÒ
Metameric segmentation is the main feature of :

(a) Arthropoda (b) Annelida

(c) Coelenterata (d) Echinodermata

A [ v¸¨¦P / Turn over

7637 4

7. _Áõ\zøuU Pmk¨£kzxÁx :
(A) ]Ö‰øÍ (B) ö£¸‰øÍ
(C) £õßì (D) •SÍ®
Breathing is controlled by :

(a) Cerebellum (b) Cerebrum

(c) Pons (d) Medulla oblongata

8. Cu¯zvÀ "h¨' J¼ CuÚõÀ HØ£kQÓx.
(A) Aøµa\¢vµ ÁõÀÄPÒ ‰kÁuõÀ
(B) B›US÷»õ & öÁßm›US»õº ÁõÀÄPÒ ‰kÁuõÀ
(C) B›US÷»õ & öÁßm›US»õº ÁõÀÄPÒ vÓ¨£uõÀ
(D) Aøµa\¢vµ ÁõÀÄPÒ vÓ¨£uõÀ
Dub sound of heart is caused by :

(a) closure of semi-lunar valves

(b) closure of atrio-ventricular valves

(c) opening of atrio-ventricular valves

(d) opening of semi-lunar valves

9. GvÀ vÓ¢u ÁøP _Ø÷Óõmh ©sh»® Põn¨£kQßÓÚ ?
(A) ¦Óõ (B) uÁøÍ
(C) Pµ¨£õߧa] (D) ©s¦Ê
Which of the following have an open circulatory system ?

(a) Pigeon (b) Frog

(c) Cockroach (d) Earthworm

A

5 7637

10. Cµzu® öuõhº£õÚ ÷|õ´PøÍU PshÔ²® ©¸zxÁz xøÓ°ß J¸ ¤›Ä :
(A) |a_ C¯À (B) öí©mhõ»â
(C) ]Ö}µP¯À (D) v_¯À
The branch of medicine concerned with the study of diseases related to blood :

(a) Toxicology (b) Haematology

(c) Nephrology (d) Histology

11. Gsi÷µõøP÷Úì GuøÚ ©õØÖÁvÀ £[÷PØQÓx ?
(A) ¦µu[Pøͨ £õ¼ö£¨øhkPÍõP ©õØÖu¼À
(B) ö£¨ê÷ÚõáøÚ ö£¨êÚõP ©õØÖu¼À
(C) Põ]÷ÚõáøÚ Põ]ÚõP ©õØÖu¼À
(D) i›¨ê÷ÚõáøÚ i›¨êÚõP ©õØÖu¼À
Enterokinase takes part in the conversion of :

(a) Protein into polypeptide

(b) Pepsinogen into pepsin

(c) Caseinogen into casein

(d) Trypsinogen into trypsin

12. £À¾°ºz ußø© GßÓ £uzøua `mi¯Áº ¯õº ?
(A) A›ìhõiÀ (B) ÁõÀhº ÷µõéß
(C) G.¤.i. Põs÷hõÀ (D) G.â. hõßì÷»
Who coined the term biodiversity ?

(a) Aristotle (b) Walter Rosen

(c) AP de Candole (d) AG Tansley

A [ v¸¨¦P / Turn over

7637 6

13. ¤Ó¢u SÇ¢øuPÎÀ EhÀ |kUP® HØ£kzuõ©À öÁ¨£ EØ£zv ö\´x EhÀ
öÁ¨£® AvP›¨£x Guß ‰»® ?

(A) ©g\Ò öPõʨ¦ (B) öÁÒøÍU öPõʨ¦

(C) {Ó©ØÓ öPõʨ¦ (D) £Ê¨¦U öPõʨ¦

Non-shivering thermogenesis in neonates produces heat through :

(a) Yellow fat (b) White fat

(c) Colourless fat (d) Brown fat

14. uø\a _¸UPzvØPõÚ ATP ÷¯ì ö|õv EÒÍ Ch® :

(A) ø©÷¯õ]ß (B) BUiÛß

(C) BUiß (D) m÷µõ¨÷£õÛß

ATPase enzyme needed for muscle contraction is located in :

(a) myosin (b) actinin

(c) actin (d) troponin

15. C¢v¯õÂß £ÓøÁ°¯À ÁÀ¾|º ¯õº ?

(A) P÷µõ»ì ¼ß÷Ú¯ì (B) \õº»ì hõºÂß

(C) A›ìhõiÀ (D) hõUhº \½® A¼

Who was the ornithologist of India ?

(a) Carl Linnaeus (b) Charles Darwin

(c) Aristotle (d) Dr. Salim Ali

A

7 7637

£Sv & II / PART - II

SÔ¨¦ : GøÁ÷¯Ý® BÖ ÂÚõUPÐUS ©mk® Âøh- ¯ - Î U- P - Ä ®. ÂÚõ Gs
24 &US Pm-hõ-¯-©õP Âøh-¯-ÎU-P-Ä®. 6x2=12

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

16. ]ØÔÚU ÷Põm£õmiÀ \õº»ì hõºÂÛß £[S ¯õx ?

What is the role of Charles Darwin in relation to concept of species ?

17. ‰i¯ ©ØÖ® vÓ¢u ÁøP Cµzu Kmh ©sh»zøu J¨¤kP.

Compare closed and opened circulatory system.

18. ]» ÁøP G¤w¼¯[PÒ ö£õ´¯kUQÚõÀ BÚøÁ. Cuß ö£õ¸Ò GßÚ ?

Some epithelia are pseudostratified. What does this mean ?

19. Hß umøh¨¦ÊUPÒ EhØSȯØÓøÁ GÚ AøÇUP¨£kQßÓÚ ?

Why flatworms are called acoelomates ?

20. ©s¦ÊÂß ö£›ì÷hõª¯® ©ØÖ® ¦÷µõì÷hõª¯zøu ÷ÁÖ£kzxP.

Differentiate between Peristomium and Prostomium in Earthworm.

21. Áõzvß uÛ¨£s¦PøÍ GÊxP.

Write the peculiar characters of duck.

A [ v¸¨¦P / Turn over

7637 8

22. ìöhzuì÷Põ¨¤ß £¯ßPøÍ Á›ø\¨£kzxP.

Enumerate the uses of Stethoscope.

23. ©Ûu›À PõºÛ¯õ ©õØÖ ]Qaø\ ö£õxÁõP {µõP›UP¨£kÁvÀø». Hß ?

Cornea transplant in humans is almost never rejected. State the reason.

24. ]ÖShÀ }›À EÒÍ ö|õvPÒ ¯õøÁ ?

What are the enzymes in intestinal juice ?

£Sv & III / PART - III

SÔ¨¦ : GøÁ÷¯Ý® BÖ ÂÚõUPÐUS ©mk® Âøh- ¯ - Î U- P - Ä ®. ÂÚõ Gs
33 &US Pm-hõ-¯-©õP Âøh-¯-ÎU-P-Ä®. 6x3=18

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

25. ÷Põ÷ÁÖ PÊøu Hß ©»mkz ußø© Eøh¯uõP EÒÍx ?

Why mule is sterile in nature ?

26. ¼®¤U ©sh»® Hß Enºa] ‰øÍ GÚ¨£kQÓx ?

Why the limbic system is called the emotional brain ?

27. ©Ûu ]Ö}µPzvß }ÒöÁmkz ÷uõØÓzøu £h® Áøµ¢x £õP® SÔUPÄ®.

Draw a neat labelled diagram of the L.S. of human Kidney.

A

9 7637

28. ö\¯ØøP •øÓ Â¢ymhzvß £¯ßPÒ ¯õøÁ ?

What are the advantages of artificial insemination ?

29. öÁÒøÍ Ai¨÷£õì v_øÁ £Ê¨¦ Ai¨÷£õì v_¼¸¢x ÷ÁÖ£kzxP.

Differentiate white adipose tissue from brown adipose tissue.

30. uÁøÍ°ß ö£õ¸Íõuõµ •UQ¯zxÁ® ‰ßøÓ GÊxP.

Write any three economic importance of frog.

31. ©ØÓ {Ç¾Ö P¸ÂPøÍ Âh CT GÆÂu® ÷©®£kQÓx ?

What are the advantages of CT over other imaging techniques ?

32. ¥Û¯À _µ¨¤ J¸ |õͪÀ»õa _µ¨¤ & Cuß £o £ØÔ GÊxP.

Pineal gland is an endocrine gland, write its role.

33. íõÀ÷hß ÂøÍÄ GßÓõÀ GßÚ ?

What is Haldane effect ?

A [ v¸¨¦P / Turn over

7637 10

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

Note : Answer all the questions.

34. (A) uø\a _¸UPzvØPõÚ \ÖUS CøÇU ÷Põm£õmøh ÂÍUSP.
AÀ-»-x
(B) ]ÖSh¼À EnÄ ö\›zuø» ÂÁ›UPÄ®.
(a) Explain the sliding filament theory of muscle contraction.

OR

(b) Describe in detail, the process of digestion in the small intestine.

35. (A) öuõSv AßÚ¼hõÂß ö£õx¨£s¦PøÍ GÊxP.
AÀ-»-x
(B) Am›Ú¼ß íõº÷©õß £oPøÍ ÂÁõvUPÄ®.
(a) Write down the general characteristics of the Phylum Annelida.

OR

(b) Comment on the functions of adrenalin.

36. (A) _Áõ\® |øhö£Ö® •øÓø¯ ÂÁ›UPÄ®.
AÀ-»-x
(B) Psoß JλPÀ SøÓ£õkPøÍ ÂÁ›UPÄ®.
(a) Describe the mechanism of breathing.

OR

(b) Explain the Refractive errors of eye.

A

11 7637

37. (A) £mk¨¦ÊÂß ÁõÌUøPa _ÇØ]ø¯ ÂÁ›UPÄ®.

AÀ-»-x
(B) »õ®¤m÷hõ ©õ›mj°ß PÈÄ }UP ©sh»zøu ÂÍUSP.
(a) Explain the life cycle of Bombyx Mori.

OR

(b) Explain the excretory system of Lampito Mauritii.

38. (A) Cµzu¨§a_ u¯õ›US® ÁÈ•øÓPøÍ ÂÁ›UPÄ®.

AÀ-»-x
(B) Cu¯zxi¨¦ ÷uõßÓÀ ©ØÖ® Pmk¨£kzxuÀ |øhö£Ö® •øÓø¯
ÂÁ›UPÄ®.
(a) Describe the method of blood smear preparation.

OR

(b) Describe the mechanism by which the human heart beat is initiated and controlled.

-oOo-

A [ v¸¨¦P / Turn over

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