TN 11th Question Paper 2022 Bio Chemistry

No. of Printed Pages : 8
6063
!6063IstYearBiochemistry! £vÄ Gs
Register Number

PART - III
E°º ÷Áv°¯À / BIO - CHEMISTRY
(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 AøÓU PsPõo¨£õÍ›h®
EhÚi¯õPz öu›ÂUPÄ®.
(2) }»® AÀ»x P¸¨¦ ø©°øÚ ©mk÷© GÊxÁuØS®
AiU÷PõikÁuØS® £¯ß£kzu ÷Ásk®. £h[PÒ ÁøµÁuØS
ö£ß]À £¯ß£kzu ÷Ásk®.
(3) ÷uøÁ¯õÚ ChzvÀ Áøµ£h® ©ØÖ® \©ß£õkPøÍz u¸P.
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.
(3) Draw diagrams and write equations wherever necessary.

£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.

6063 2

1. ö\À¼ß ªP¨ö£›¯ EÒÐÖ¨¦ :
(A) ö\À _Áº (B) ø©m÷hõPõsi›¯õ
(C) mRNA (D) EmP¸
The largest organelle in the cell is :
(a) Cell wall (b) Mitochondria
(c) mRNA (d) Nucleus

2. ¦÷µõ÷P›÷¯õm ö\À¼ß E¸ÁÍÄ :
(A) 0.2 - 2 mm (B) 0.2 - 2 µm (C) 5 - 10 µm (D) 2 - 20 µm
The size of a prokaryotic cell is usually :
(a) 0.2 - 2 mm (b) 0.2 - 2 µm (c) 5 - 10 µm (d) 2 - 20 µm

3. ö£¨øhk ¤øn¨ø£U öPõsi¸¨£øÁ :
(A) ¼¨¤kPÒ (B) Põº÷£õøím÷µmkPÒ
(C) {³UÎU Aª»[PÒ (D) ¦µu[PÒ
Peptide bond is present in :
(a) Lipids (b) Carbohydrates
(c) Nucleic acids (d) Proteins

4. RÌUPsh Aª÷Úõ Aª»[PÎÀ G¢u Aª÷Úõ Aª»® Põµz ußø©²øh¯
£UPa \[Q¼ø¯ öPõskÒÍx ?
(A) ö\øµß (B) ø»]ß
(C) Aì£õºiU Aª»® (D) QøÍ]ß
Among the given amino acids, which amino acid has a basic side chain ?
(a) Serine (b) Lysine
(c) Aspartic Acid (d) Glycine

5. ¦µu E¸ÁÍÂß A»S :
(A) Qµõ® (B) Q÷»õ hõÀhß
(C) ø©U÷µõ Qµõ® (D) Q÷»õ Qµõ®
The unit for protein size is _________.
(a) Gram (b) Kilo Daltons
(c) Microgram (d) Kilogram

3 6063

6. ö£¸®£õ»õÚ ö|õvPÒ __________ USÒ EP¢u pH ©v¨ø£¨ ö£ØÖÒÍÚ.
(A) 5 &¼¸¢x 9 (B) 9 &¼¸¢x 11 (C) 1 &¼¸¢x 5 (D) 7 &¼¸¢x 14
Most of the enzymes possess optimum pH between _________.
(a) 5 and 9 (b) 9 and 11 (c) 1 and 5 (d) 7 and 14

7. RÌUPshÁØÖÒ GuØS JkUPõ £s¦ÒÍx ?
(A) SÐU÷Põì (B) ©õÀ÷hõì (C) _U÷µõì (D) »õU÷hõì
Which of the following has non-reducing property ?
(a) Glucose (b) Maltose (c) Sucrose (d) Lactose

8. öPõʨ¦ Aª»[PÒ GߣøÁ __________ Pmk©õÚ A»SPÒ.
(A) öPõ»ìöhµõÀ (B) ìiU©õ ìöhµõÀ
(C) Gº÷PõìöhµõÀ (D) møµ&Aø\À QÎ\µõÀ
Fatty acids are building blocks of _________.
(a) Cholesterol (b) Stigma sterol
(c) Ergosterol (d) Tri-acyl glycerol

9. öPõ»ìiµõ¼ß ‰»UTÖ Áõ´¨£õk :
(A) C27H46O27 (B) C27H46O (C) C72H64O (D) C46H27O
The molecular formula for cholesterol is :
(a) C27H46O27 (b) C27H46O (c) C72H64O (d) C46H27O

10. RÌUPshÁØÖÒ Gx ø|mµáß Põµ®, ›÷£õì \ºUPøµ ©ØÖ® £õì÷£m
öuõSvø¯ öPõskÒÍx ?
(A) DNA {²UÎ÷¯õø\k (B) RNA {²UÎ÷¯õø\k
(C) DNA {²UÎ÷¯õøhk (D) RNA {²UÎ÷¯õøhk
Which of the following contains Nitrogenous Base ; Ribose Sugar and Phosphate
group ?
(a) DNA nucleoside (b) RNA nucleoside
(c) DNA nucleotide (d) RNA nucleotide

6063 4

11. £õ¼ A ÁõÀ Põn¨£kÁx :
(A) hnRNA (B) rRNA (C) mRNA (D) tRNA
Poly A tail is present in :
(a) hnRNA (b) rRNA (c) mRNA (d) tRNA

12. Cµzu¨÷£õUøP ukUS® øÁmhªß :
(A) øÁmhªß D (B) øÁmhªß K
(C) øÁmhªß C (D) øÁmhªß E
Anti hemorrhagic vitamin is :
(a) Vitamin D (b) Vitamin K
(c) Vitamin C (d) Vitamin E

13. __________ SøÓ£õmhõÀ ö£›ö£› EshõQÓx.
(A) øuªß (B) v›÷¯õøÚß (C) øu÷µõêß (D) u¯ªß
Beriberi is caused by deficiency of _________.
(a) Thymine (b) Threonine (c) Tyrosine (d) Thiamine

14. ¤ßÁ¸ÁÚÁØÖÒ £Ø]øuøÁ ukUP ÷uøÁ¯õÚx Gx ?
(A) ÷\õi¯® (B) L¦Ñ›ß (C) ö£õmhõ]¯® (D) S÷Íõ›ß
Which one of the following is necessary for the prevention of dental caries ?
(a) Sodium (b) Fluorine (c) Potassium (d) Chlorine

15. PAGE &CÀ SDS &I ÷\º¨£uß ÷|õUP® :
(A) ¦µuzvß «x ^µõÚ Gvº ªß_ø©ø¯ HØÓ
(B) ¦µuzøu PøµUP
(C) ¦µuzvß «x ^µõÚ ÷|º ªß_ø©ø¯ HØÓ
(D) ]UP»õÚ ¦µuzøu {ø»¨£kzu
The purpose of adding SDS in PAGE is to :
(a) Impart uniform negative charge on protein
(b) Solubilize the protein
(c) Impart uniform positive charge on protein
(d) Stabilize the complex protein

5 6063

£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. EmP¸zvµÒ £ØÔ ]Ö SÔ¨¦ ÁøµP.
Write a short note on nucleolus.

17. QøÍU÷Põ ¼¨¤kPÒ GßÓõÀ GßÚ ?
What are Glycolipids ?

18. ÷íõ÷»õ ö|õv GßÓõÀ GßÚ ?
What is an Holoenzyme ?

19. B÷Úõ©ºPÒ GßÓõÀ GßÚ ?
What are anomers ?

20. møµQÎ\øµkPøÍ }µõØ£SzuõÀ GßÚ {PÊ® ?
What happens when triglycerides are hydrolysed ?

21. E¯º{Ó•Ôg_® ußø© GßÓõÀ GßÚ ?
What is hyperchromicity ?

22. øÁmhªß E SøÓ£õmhõÀ EshõS® £õv¨¦PÒ ¯õøÁ ?
What are the effects of Vitamin E deficiency ?

23. ö£õmhõ]¯zvß ‰»[Pøͨ £mi¯¼kP.
List the sources of potassium.

24. ø£³µm Põµo°ß «x ¦µu[PÎß ö\¯À£õk ¯õx ?

What is the action of Biuret reagent on proteins ?

6063 6

£Sv & III / PART - III
SÔ¨¦ : H÷uÝ® 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. £õUj›¯õ ö\À _Á›ß Aø©¨¦ ©ØÖ® Auß ö\¯À£õkPøÍ GÊxP.
Write about the structure and functions of a bacterial cell wall.

26. {øÓÄÓõ öPõʨ¦ Aª»[PÒ GßÓõÀ GßÚ ? GkzxUPõmkPÒ u¸P.
What are unsaturated fatty acids ? Give examples.

27. ¦µu[PÎß £s¦PÒ H÷uÝ® ‰ßÔøÚU SÔ¨¤kP.
Mention any three properties of Proteins.

28. Gί ¼¨¤kPÒ ©ØÖ® Auß ÁøPPøͨ £ØÔ GÊxP.
Write short note on simple lipids and its types.

29. ©õÀ÷hõêß Aø©¨ø£ GÊxP.
Write the structure of Maltose.

30. DNA ©ØÖ® RNA&ÂØS Cøh÷¯ EÒÍ ÷ÁÖ£õkPÒ GøÁ÷¯Ý® ‰ßÔøÚ¨
£mi¯¼kP.
List out any three differences of DNA and RNA.

31. øµ÷£õL¤÷ÍÂß SøÓ£õmhõÀ EshõS® £õv¨¦PÒ ¯õøÁ ?
What are the effects of riboflavin deficiency ?

32. I÷\õ¤UÛU Ahºzv ÷ÁÖ£õmk ø©¯Â»US •øÓ £ØÔ ]Ö SÔ¨¦ GÊxP.
Write a short note on isopycnic density gradient centrifugation.

33. ÷©õ÷Úõö©›U ö|õvPÒ, J¼÷Põö©›U ö|õvPÒ – ÷ÁÖ£kzxP.

Differentiate between monomeric and oligomeric enzymes.

7 6063

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

Note : Answer all the questions.

34. (A) ö\À\ÆÂß ö\¯À£õkPøͨ £mi¯¼kP.
AÀ»x
(B) (i) Põº÷£õøím÷µmkPÒ Hß •ußø©¯õÚ BØÓÀ ‰»©õPU P¸u¨& 2
£kQÓx ?
(ii) Põº÷£õøím÷µmkPÎß ¤Ó ö\¯À£õkPøͨ £mi¯¼kP. 3
(a) List out the functions of cell membrane.

OR

(b) (i) Why carbohydrates are considered as primary source of energy ? 2
(ii) List out the other functions of carbohydrates. 3

35. (A) CønÄ ¦µu[PÒ £ØÔ ÂÍUSP.
AÀ»x
(B) öPõʨ¦ Aª»[PÎß øímµá÷ÚØÓ® ©ØÖ® ÷í»á÷ÚØÓ® £ØÔ
ÂÍUSP.
(a) Explain about conjugated proteins.

OR

(b) Explain about the hydrogenation and halogenation of fatty acids.

36. (A) ï÷©õS÷Íõ¤ß Aø©¨ø£¨ £ØÔ ÂÁ›UPÄ®.
AÀ»x
(B) C¸®¦ EÔg_uø» £õvUS® PõµoPøͨ £mi¯¼kP.
(a) Explain about the structure of Haemoglobin.

OR

(b) List the factors which influence the absorption of Iron.

6063 8

37. (A) ö|õv ö\¯À£õmøh Pmk¨£kzx® PõµoPÒ ¯õøÁ ? AÁØÔÀ H÷uÝ®
CµsiøÚ ÂÁ›UPÄ®.
AÀ»x
(B) øÁmhªß B 12 &°ß ‰»[PÒ, ö\¯À£õkPÒ ©ØÖ® SøÓ£õmk
÷|õ´Pøͨ £ØÔ GÊxP.
(a) What are the factors that influence enzyme activity ? Explain any
two of them.
OR
(b) Write about the sources, functions and deficiency symptoms of Vitamin B12.

38. (A) yx RNA ©ØÖ® Auß ö\¯À£õkPÒ £ØÔ ÂÁ›UPÄ®.
AÀ»x
(B) ö\À EÒÐÖ¨¦PøÍ uÛø©¨£kzxuÀ •øÓø¯ ÂÁ›UPÄ®.
(a) Explain about messenger RNA and its functions.
OR
(b) Describe the method of isolation of subcellular organelles.

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