Tamil Nadu 11th Std Model Question Paper Biology

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No. of Printed Pages : 15
3427 (NS)
!3427NSIstYearBiology! £vÄ Gs
Register Number

PART - III
E°›¯À / BIOLOGY
( 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£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.

SÔ¨¦ : £Sv& I (E°›&uõÁµÂ¯À), £Sv& II (E°›&»[Q¯À) uÛzuÛ
ÂøhzuõÎÀ Âøh¯ÎUPÄ®.
Note : Candidate should answer Part-I (Bio-Botany) & Part-II (Bio-Zoology) in separate
answer books.

£Sv - I (E°› & uõÁµÂ¯À) / PART - I (BIO - BOTANY)
(©v¨ö£sPÒ : 35) / (Marks : 35)
¤›Ä - 1 / SECTION - 1
SÔ¨¦ : (i) AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®. 8x1=8
(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

3427 (NS) 2

1. G¨-¤-›Ä uõ-Á-µ® K[-Q¯ ÷P«m-hP uõ-Áµ \¢-u-v-ø¯U öPõs-h-x?
(A) Bg-]-÷¯õì-ö£º®-PÒ (B) öh›-÷hõ-L-ø£m-PÒ
(C) ¤øµ-÷¯õ-L-ø£m-PÒ (D) â®-÷Úõì-ö£º®-PÒ
Which of the plant group has gametophyte as a dominant phase ?
(a) Angiosperms (b) Pteridophytes
(c) Bryophytes (d) Gymnosperms

2. ¤ß- Á - ¸ ® uõ- Á - µ [- P - Î À GvÀ PUP ö©õmk •m- P ÍõP E¸- © õØ- Ó ®
ö£Ö-Q-Ó-x ?
(A) ‰[-QÀ (B) ]m-µì
(C) Qøµ-\õ¢-v-©® (D) BU-éõ-¼ì
Axillary bud is modified into thorns in :
(a) Bambusa (b) Citrus
(c) Chrysanthemum (d) Oxalis

3. RÌU-Psh £hz-vøÚ EØ-Ö-÷|õUQ \›-¯õÚ Âøh-ø¯ ÷uº¢-öu-kU-P-Ä®.

(i) A, B ©Ø-Ö® C us-k ~Û-°ß îì-÷hõ-öáß BS®.

(ii) A ö©kÀ-»õ Pvº-PøÍ E¸-ÁõU-S-Q-Óx

(iii) B & ¦Ó-oø¯ E¸-ÁõU-S-Q-Óx

(iv) C & ¦Óz-÷uõø» E¸-ÁõU-S-Q-Ó-x

(A) (iii) ©Ø-Ö® (iv) ©mk® (B) (i) ©Ø-Ö® (ii) ©mk®
(C) (ii) ©Ø-Ö® (iii) ©mk® (D) (i) ©Ø-Ö® (iii) ©mk®

3 3427 (NS)

Refer to the given figure and select the correct statement.

(i) A, B and C are histogen of shoot apex

(ii) A gives rise to medullary rays

(iii) B gives rise to cortex

(iv) C gives rise to epidermis

(a) (iii) and (iv) only (b) (i) and (ii) only

(c) (ii) and (iii) only (d) (i) and (iii) only

4. «s-k® Ch®-ö£-¯-µõu uÛ-©® Gx ?
(A) ø|m-µ-áß (B) £õì-£-µì
(C) ö£õm-hõ-]-¯® (D) PõÀ-]-¯®
The element which is not remobilized :

(a) Nitrogen (b) Phosphorous

(c) Potassium (d) Calcium

5. Cøn¢u `»-P Cø»-PÒ öPõsh `»PÁm-h® CÆ-ÁõÖ AøÇU-P¨-£-k® :
(A) £»-`-»P Cø» `»-P® (B) Cøn-¯õ `»-P Cø» `»-P®
(C) -£-»-`-»P Cø» `»-P¨-ø£ (D) ÷©Ø-T-Ô¯ Gx-Ä-ªÀ-ø»
Gynoecium with united carpel is termed as :

(a) syncarpous (b) apocarpous

(c) multicarpellary (d) none of the above

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3427 (NS) 4

6. ¦÷µõm-÷hõ-¤Íõ-\zøu •uÀ •u-»õP Ps-h-Ô¢-u-Áº :
(A) íõº-i (B) ï÷Põ-Áõß÷©õÀ
(C) Põ-º-i (D) íUì-¼
Protoplasm was first observed by :
(a) Hardy (b) Hugovanmohl
(c) Corti (d) Huxley

7. ö\À _ÇØ-]-°ß \›-¯õÚ Á›-ø\ :
(A) M - G - G2 - S (B) S - M - G1 - G2
(C) S - G1 - G2 - M (D) G1 - S - G2 - M
The correct sequence in cell cycle is :
(a) M - G - G2 - S (b) S - M - G 1 - G2
(c) S - G 1 - G2 - M (d) G1 - S - G2 - M

8. RÌU-Ps-h-ÁØøÓ £izx \›-¯õÚ Âøh-ø¯ ÷uº¢-öu-kU-P-Ä®.
(i) GU-éõºU GÚ¨-£-k-Áx ö©m-hõ-ø\-»z-vØS öÁÎ-÷¯ ¦÷µõm-÷hõ-ø\-»®
Aø©¢-xÒÍ-x
(ii) Gs- h õºU GÚ¨- £ - k - Á x ¦÷µõm- ÷ hõ- ø \- » ® ø©¯zøu ÷|õUQ
Aø©¢-xÒÍ-x
(iii) ö\ßm-µõºU GÚ¨-£-k-Áx ¦÷µõm-÷hõ-ø\-»z-vØS |k-ÂÀ ö©m-hõ-ø\-»®
Aø©¢-xÒÍ-x
(iv) «- é õºU GÚ¨- £ - k - Á x ö©m- h õ- ø \- » z- v ØS |k-  À ¦÷µõm- ÷ hõ- ø \- » ®
Aø©¢xÒÍx

(A) (i), (ii) ©Ø-Ö® (iv) ©mk® (B) (i), (ii) ©Ø-Ö® (iii) ©mk®
(C) (ii), (iii) ©Ø-Ö® (iv) ©mk® (D) CøÁ AøÚz-x®
Read the following sentences and identify the correctly matched sentences.
(i) In exarch condition the protoxylem lies outside of metaxylem.
(ii) In endarch condition the protoxylem lies towards the centre.
(iii) In centrarch condition the metaxylem lies in the middle of protoxylem.
(iv) In mesarch condition protoxylem lies in the middle of metaxylem.

(a) (i), (ii) and (iv) only (b) (i), (ii) and (iii) only
(c) (ii), (iii) and (iv) only (d) All of these

5 3427 (NS)

¤›Ä - 2 / SECTION - 2

SÔ¨¦ : GøÁ÷¯Ý® |õß-S ÂÚõUPÐUS Âøh¯ÎUPÄ®. ÂÚõ Gs 14 &US
Pmhõ¯©õP Âøh¯ÎUPÄ®. 4x2=8

Note : Answer any four questions. Question No. 14 is compulsory.

9. QøÍm- ÷ hõ- › - ¯ õ öhº- ÷ Ú- æ - ¯ õ- Â ß H÷u- Ý ® Cµsk ©»º £s- ¦ - P øÍ
ÂÍU-S-P.
Give any two floral characteristics of Clitoria ternatea.

10. }›-¯À vÓ-øÚU Pm-k¨-£-kz-x® TÖ-PÒ ¯õøÁ ?
What are the parameters which control water potential ?

11. E¸-©õ-Ö® ußø© Gß-ÓõÀ GßÚ ?
What is plasticity ?

12. EMP Á- È z- u - h z- v À
£õì- £ - › - P - µ - n ® ©Ø- Ö ® £õì- ÷ £m }U- P ® BQ- ¯
ÂøÚ-P-ÎÀ Dk-£-k® ö|õ-v-PøÍ GÊ-x-P.
What are the enzymes involved in phosphorylation and dephosphorylation reactions
in EMP pathway ?

13. ø»U-öPß-P-Îß ö£õ-x¨ -£s-¦-PøÍ GÊ-x-P.
Give general account on Lichens.

14. ¨öÍU-÷hõì-jÀ Gß-ÓõÀ GßÚ ? Kº Gkz-xU-Põmk u¸-P.
What is plectostele ? Give an example.

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3427 (NS) 6

¤›Ä - 3 / SECTION - 3

SÔ¨¦ : GøÁ÷¯Ý® ‰ßÖ ÂÚõUPÐUS Âøh¯ÎUPÄ®. ÂÚõ Gs 19 &US
Pmhõ¯©õP Âøh¯ÎUPÄ®. 3x3=9

Note : Answer any three questions. Question No. 19 is compulsory.

15. øí¤ì-Pì ÷µõ-\õ-ø\-Úß-êì ©»-›ß Áøµ-£-h® Áøµ¢x ©»º `z-v-µzøu
GÊ-x-P.

Draw the floral diagram and write the floral formula of Hibiscus rosasinensis.

16. J¸ ©µz- v ß SÖU- S - ö Ám- k z ÷uõØ- Ó z- v À Põ- n ¨- £ - k ® ö£õx ø©¯
ÁøÍ-¯[-PÒ Áͺa] ÁøÍ-¯[-PÒ GÚ¨-£-k-Q-Óx. Áͺa] ÁøÍ-¯[-PÒ
GÆ-ÁõÖ E¸-Áõ-Qß-ÓÚ ? Auß •U-Q-¯z-x-Á® ¯õx ?

A transverse section of the trunk of a tree shows concentric rings which are known as
growth rings. How are these rings formed ? What is the significance of these rings ?

17. DNA &Âß ]Ó¨-¤-¯À-¦-PÒ ¯õøÁ ?

Write the characteristic features of DNA.

18. »[S ö\À-P-ÐU-S®, uõ-Áµ ö\À-P-ÐU-S® EÒÍ ÷ÁÖ-£õ-k-PÒ ¯õøÁ ?

Write the differences between plant cell and animal cell.

19. JÎa-÷\ºU-øP-°ß H÷u-Ý® ‰ßÖ •U-Q-¯z-x-Ázøu GÊx-P.

Write any three significance of photosynthesis.

7 3427 (NS)

¤›Ä - 4 / SECTION - 4

SÔ¨¦ : AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®. 2x5=10

Note : Answer all the questions.

20. (A) -ö©õ-Û-µõ-Âß ]Ó¨¦ £s-¦-PøÍ GÊ-xP.

AÀ-»-x

(B) -ø©m-hõ-]ì, ª¯õ-]ì ÷ÁÖ-£õmøh ÂÍU-S-P.

(a) Write the distinguishing features of Monera.

OR

(b) Differentiate between Mitosis and Meiosis.

21. (A) - B g- ] - ÷ ¯õì- ö £º®- P - Î ß §a- ] - ² s- q ® En- Å mh •øÓ- ° øÚ
ÂÁ-›U-P-Ä®.

AÀ-»-x

(B) â¨-µ-¼ß ÁõÌ-Â-¯À ÂøÍ-Ä-PÒ ¯õøÁ ?

(a) Explain the insectivorous mode of nutrition in angiosperm.

OR

(b) Write the physiological effects of Gibberellin.

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3427 (NS) 8

£Sv & II (E°› & »[Q¯À) / PART - II (BIO - ZOOLOGY)
(©v¨ö£sPÒ : 35) / (Marks : 35)

¤›Ä - 1 / SECTION - 1

SÔ¨¦ : (i) AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®. 8x1=8
(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.

1. R÷Ç öPõ- k U- P ¨- £ mh ÁøP¨- £ õm- k U P¸-  - P - Î À uÁ- Ó õÚ JßøÓ
÷uº¢-öu-kU-P-Ä®.
(A) DNA &ÂÀ EÒÍ ]Ó¨¦ Aø©¨- ¦ - P øÍ AÔ¢x J¨- ¤ - k - Á - u ß ‰»®
AÆ- Ä - ° - › ø¯ Aøh- ¯ õÍ® Põs- £ x DNA &øP÷µ- ø P öuõ- È À
~m-£-©õ-S®.
(B) JØ-Öø© ©Ø-Ö® ÷ÁØ-Ö-ø©ø¯ Ai¨-£-øh-¯õ-PU öPõsk uõ-Á-µ[-PÒ
©Ø- Ö ® »[- S - P øÍ Ps- h - Ô ¯ ÁøP¨- £ õmk vÓ- Ä - ÷ PõÀ- P Ò
£¯ß-£-k-Q-Ó-x.
(C) £u¨- £ - k zv øÁU- P ¨- £ mh uõ- Á µ ©Ø- Ö ®- Â- » [- S - P - Î ß öuõ- S ¨¦
E°-›-¯À A¸[-Põm-]-¯® GÚ¨-£-k-Q-Ó-x. Cx ©µ£ØÖ¨ ÷£õÚ ©ØÖ®
E°¸hß EÒÍ ©õv› ÁȯõP E°›Ú[PøÍ £ØÔ AÔ¯ EuÄQÓx.
(D) ©Ûu ÷©Ø- £ õº- ø Á- ° ßÔ C¯Ø- ø P- ¯ õÚ `Ì- { - ø »- ° À Põmk
»[-S-PøÍ øÁz-v-¸z-uÀ »[-Q-¯À §[-PõU-PÒ GÚ¨-£-k®.
Which of the following is an incorrect taxonomical tool ?
(a) DNA - Fingerprinting - To identify an individual from a sample of DNA by looking
at unique patterns in their DNA.
(b) Taxonomical keys are used to identify plants and animals based on similarities
and dissimilarities.
(c) A Museum has a collection of preserved plants and animals of extinct and living
organisms, which can be studied.
(d) Zoological parks - Wild animals are kept in natural environment without
human care.

9 3427 (NS)

2. ¤ß- Á - ¸ ® £hz- v À EÒÍ £õ- P [- P - Î À Gx •x- ö P- ¾ ®¦ öuõ- h - µ õP •vº
•x-öP-¾®-¤-ÝÒ ©õØ-Õk ö\´-¯¨-£-kQÓx ?

(A) 2 (B) 4 (C) 3 (D) 1
Which of the following structure leads to the formation of vertebral column of adult
vertebrates ?

(a) 2 (b) 4 (c) 3 (d) 1

3. RÌU-Psh ÁõU-Q-¯[-PøÍ £izx \›-¯õÚ £v-ø» Ps-k-¤-izx GÊ-xP.
(i) Bs Pµ¨- £ õß §a- ] - ° À ‰ßÖ Px¨- ¦ - P øÍU öPõsh Kº Cøn
¢- u - P [- P Ò 4 - 6 Á°ØÖU Ps- h [- P - Î ß £U- P - Á õm- i À £U- P z- v ØS
Jß-ÓõP EÒÍ-Ú.
(ii) PõÍõß Ái- Á a _µ¨¤/³m- › - S - » õº _µ¨¤ Bs Pµ¨- £ õß §a- ] - ° ß
CÚ¨-ö£-¸UP ©s-h-»z-x-hß Cøn¢u J¸ ö£›¯ xøn CÚ¨-ö£-¸UP
_µ¨-¤-¯õ-S®.
(iii) ö£s Pµ¨- £ õߧa- ] - ° À Kº Cøn As- h - P [- P Ò 2 - 6 Á°ØÖU
Ps-h[-P-Îß £U-P-Áõm-iÀ £U-Pz-vØS Jß-ÓõP EÒÍ-Ú.
(iv) ö£s Pµ¨- £ õß §a- ] - ° À |ßS QøÍzu Kº Cøn öÁs- o - Ó U
öPõÀ-÷»m-›-¯À _µ¨-¤-PÒ As-h-Pz-vß ¤ß-£-S-v-°À EÒÍ-x.
(A) ÁõU-Q-¯[-PÒ (i), (ii) ©Ø-Ö® (iv) BQ-¯-øÁ uÁ-Ö, A÷u-\-©-¯® (iii) \›
(B) ÷©÷» EÒÍ AøÚzx ÁõU-Q-¯[-P-Ю \›
(C) ÷©÷» EÒÍ AøÚzx ÁõU-Q-¯[-P-Ю uÁ-Ö
(D) ÁõU-Q-¯[-PÒ (i), (ii) ©Ø-Ö® (iv) BQ-¯-øÁ \›, A÷u-\-©-¯® (iii) uÁ-Ö

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3427 (NS) 10

Read the following statements and choose the correct option.
(i) A pair of 3-lobed testes lies on the lateral side of the 4th to 6th abdominal segment
in male cockroach.
(ii) Mushroom/Utricular gland is a large accessory reproductive gland in male
cockroach.
(iii) A pair of ovaries lies laterally in the 2nd to 6th abdominal segment in female
cockroach.
(iv) A pair of white and branched collaterial glands are present behind the ovaries in
female cockroach.

(a) Statements (i), (ii) and (iv) are false, whereas (iii) is true
(b) All the above statements are true
(c) All the above statements are false
(d) Statements (i), (ii) and (iv) are true, whereas (iii) is false

4. Cµz-uz-vß ‰»® ~øµ-±-µ-¾U-Sa ö\À-¾® Põº-£ß&-øh&-BU-ø\-iß {ø» :
(A) Põº-£õU] ï÷©õ-S-÷Íõ-¤ß (B) Põº-£õ-ÛU Aª-»®
(C) BU-]- ï-÷©õS÷Íõ-¤ß (D) Põº-£-ª-÷Úõ ï÷©õ-S-÷Íõ-¤ß
CO2 is transported through blood to lungs as :
(a) Carboxy haemoglobin (b) Carbonic acid
(c) Oxy haemoglobin (d) Carbamino haemoglobin

5. RÌ-Á-¸-Á-Ú-ÁØ-ÖÒ uÁ-ÓõÚ Cøn-ø¯U PõsP.
(A) _hº ö\À-PÒ & ©s-¦-ÊU-PÒ
(B) £aø\ _µ¨-¤-PÒ & -C-ÓõÀ-PÒ
(C) ö\õ-»-÷Úõ-ø\m-k-PÒ & -B-®-L¤-¯õU-éì
(D) ©õÀ-¥-â-¯ß S-ÇÀ-PÒ & -§a-]-PÒ
Find out the wrong pair from the following.
(a) Flame cells - Earthworms
(b) Green glands - Prawns
(c) Solenocytes - Amphioxus
(d) Malpighian tubules - Insects

11 3427 (NS)

6. ©Û-u Ps-oÀ JÎ ö\À-¾-QßÓ \›-¯õÚ £õøu :
(A) Põº-o-¯õ → ö»ßì → Pg-áU-i-Áõ → ÂÈz-vøµ
(B) Põº-o-¯õ → Pg-áU-i-Áõ → •ß Ps vµÁ® → ö»ßì → ÂÈz-v-øµ
(C) Põº-o-¯õ → ö»ßì → •ß Ps vµ-Á® → ÂÈz-v-øµ
(D) Põº-o-¯õ → •ß Ps vµ-Á® → ö»ßì → ÂÈz-v-øµ
The right path of light in our eye is :
(a) Cornea → Lens → Conjunctiva → Retina
(b) Cornea → Conjunctiva → Aqueous humor → Lens → Retina
(c) Cornea → Lens → Aqueous humor → Retina
(d) Cornea → Aqueous humor → Lens → Retina

7. ö£õ-¸z-x-P :
(1) £õ-µõ-øu-µõ´k íõº-÷©õß (i) Ai-\-Ûß- ÷|õ´
(2) SÐU-÷PõPõº-i-Põ´k íõº-÷©õß (ii) ©s-h-»U PÇ-ø»
(3) øuµõU-êß íõº-÷©õß (iii) öhm-h-Û
(4) Áͺa] íõº-÷©õß (iv) AU-÷µõ-ö©-Põ-¼

(A) (1)-(iii), (2)-(i), (3)-(ii), (4)-(iv)
(B) (1)-(iii), (2)-(iv), (3)-(ii), (4)-(i)
(C) (1)-(iv), (2)-(i), (3)-(ii), (4)-(iii)
(D) (1)-(i), (2)-(iii), (3)-(iv), (4)-(ii)
Match the following :
(1) Parathyroid hormone (i) Addison’s disease
(2) Glucocorticoid hormone (ii) Endemic goitre
(3) Thyroxine hormone (iii) Tetany
(4) Growth hormone (iv) Acromegaly

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

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3427 (NS) 12

8. RÌU-Psh ÁõU-Q-¯[-PøÍ £izx \›-¯õÚ £v-ø» ÷uº¢-öu-kU-P-Ä®.

EÖ-vUTØÖ (A) : ÷©ß-iÀ G¤-w-¼-¯® öÁΨ-ö£õ-¸-Îß «x ø£÷£õÀ
`Ì¢x Ahºz-v-¯õÚ ÷|U› GÝ® ö£õ-¸øÍ öuõ-hº¢x
_µU-Qß-Óx. Põ-»¨-÷£õU-QÀ PõÀ-]-¯® Põº-£-÷Úm £»
AkU-S-PÍõ-Pa _µ¢x EÖ-v-¯õÚ £Í-£Í¨-£õÚ •zx
E¸-ÁõU-P¨-£-k-Qß-Ó-x.

Põ-µ-n® (R) : •z- v ß £S- v ¨- ö £õ- ¸ m- P ÍõP 2 - 4% }º ©Ø- Ö ® 90%
PõÀ]¯® Põº-£-÷Úm EÒÍ-x.

(A) ÁõU-Q-¯® (A) uÁ-Ö BÚõÀ ÁõU-Q-¯® (R) \›.

(B) ÁõU-Q-¯® (A) ©Ø-Ö® (R) Cµs-k® \› ÷©¾® (R) &B-Ú-x (A) &ÂØ-Põ-Ú
\›-¯õÚ ÂÍU-P-©õ-S®.

(C) ÁõU-Q-¯® (A) ©Ø-Ö® (R) Cµs-k® \› BÚõÀ (R) &B-Ú-x (A) &ÂØ-Põ-Ú
\›-¯õÚ ÂÍU-P® CÀ-ø».

(D) ÁõU-Q-¯® (A) \› BÚõÀ ÁõU-Q-¯® (R) uÁ-Ö.

Read the following statements and choose the correct option.

Assertion (A) : Nacre is secreted continuously by the epithelial layer of the mantle
deposited around the foreign particle and over a period of time the
formation of repeated layer of calcium carbonate makes the hard and
glossy pearl.

Reason (R) : The pearl comprises of 2 - 4% water and 90% calcium carbonate.

(a) Statement (A) is incorrect but statement (R) is correct.

(b) Both statements (A) and (R) are correct and (R) is the correct explanation to (A).

(c) Both statements (A) and (R) are correct but (R) is not the correct explanation
to (A).

(d) Statement (A) is correct but statement (R) is incorrect.

13 3427 (NS)

¤›Ä - 2 / SECTION - 2
SÔ¨¦ : GøÁ÷¯Ý® 4 ÂÚõUP-ÐUS Âøh¯ÎUPÄ®. ÂÚõ Gs 14 &US
Pmhõ¯©õP Âøh¯ÎUPÄ®. 4x2=8

Note : Answer any 4 of questions. Question No. 14 is compulsory.

9. P÷µõ-»ì ¼ß-÷Ú-¯ì&I Hß |õ® "|ÃÚ ÁøP¨-£õm-i-¯-¼ß u¢-øu' GÚ
AøÇU-Q-÷Óõ® ?
Why do we call Carolus Linnaeus as the ‘Father of modern taxonomy’ ?

10. ©s- ¦ - Ê U- P øÍ ©s- o ß AkU- S - P - Î À Áõ- Ê - ª - h zøu Ai¨- £ - ø h- ¯ õ- P U
öPõsk Euõ-µ-nz-x-hß ÁøP¨-£-kz-x-P.
Classify the earthworms based on their ecological strategies with example.

11. ©Û- u En- Ä ©s- h - » z- v À ¤ß- Á - ¸ ® ö£õ- ¸ m- P Ò G¢u £S- v - ° À
EÔg-_U öPõÒͨ-£-k-Q-Óx ?
(i) }º, ]» uÛ-©[-PÒ, ©Ø-Ö® ]» ©¸¢-x-PÒ
(ii) GÎ-¯ \ºU-Pøµ ©Ø-Ö® BÀ-P-íõÀ
In which part of the digestive system, absorption of following substances take place ?
(i) Water, some minerals and certain drugs.
(ii) Simple sugar and alcohol.

12. Ãa- _ U öPõÒÍÍÄ Gß- Ó õÀ GßÚ ? CøÁ GÆ- Á õÖ Cu- ¯ z- v - ¼ - ¸ ¢x
öÁÎ-÷¯-Ö® Cµzu AÍ-Ä-h-ß öuõ-hº-¦-øh-¯x ?
What is stroke volume ? What is its relation with cardiac output ?

13. S-¸m-k¨-¦ÒÎ GÚ¨-£-k-Áx Gx ? Hß AÆ-ÁõÖ AøÇU-P¨-£-k-Q-Óx ?
What is meant by blind spot ? Why is it called so ?

14. P»-¨-£-Ó¨¦ ©Ø-Ö® ìÁõº-ª[ Cøh-÷¯ EÒÍ ÷ÁÖ-£õk ¯õx ?
Differentiate nuptial flight and swarming.

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3427 (NS) 14

¤›Ä - 3 / SECTION - 3
SÔ¨¦ : GøÁ÷¯Ý® 3 ÂÚõUP-ÐUS Âøh¯ÎUPÄ®. ÂÚõ Gs 19 &US
Pmhõ¯©õP Âøh¯ÎUPÄ®. 3x3=9
Note : Answer any 3 questions. Question No. 19 is compulsory.

15. Áøµ-¯Ö : (i) ø\÷\õ-^-÷»õ-÷©m-k-PÒ
(ii) Gßm-÷µõ-^-÷»õ-÷©m-k-PÒ
Define : (i) Schizocoelomates
(ii) Enterocoelomates

16. J¸ |£-›ß E¯-µ® 180 ö\.«. AÁº Eh-¼ß Gøh 80 Q.Q. AÁ-›ß EhÀ Gøh
SÔ-±m-øhU Ps-h-Ô¢x AÁº \õ-uõ-µ-n-©õ-Ú-Á-µõ AÀ-»x £¸-©-Úõ-Ú-Á-µõ GÚU
TÖ-P.
A person’s height is 180 cm. His body weight is 80 kg. Find out BMI and tell him
whether he is normal or obese.

17. BU- ê - á ß £S- v AÊz- u ® SøÓ- Á õP EÒÍ Ch[- P - Î À Áõ- Ê ® |£- › ß
Eh-¼À {P-Ê® ©õØ-Ó[-PøÍU SÔ¨-¤-k-P.
Mention the changes that occur in a person’s body who lives in low partial oxygen
pressure.

18. J¸ |£º Põ´a-\-»õÀ AÁ-v¨-£m-kU öPõsk Á¸-Q-Óõº. AÁº ©¸z-x-Áøµ
Aq- S ® ÷£õ- x A®- © - ¸ z- x - Á º Cµz- u a- ÷ \õ- u øÚ ©õ- v › Gkz- x - Á - ¸ - © õÖ
AÔ- Ä - ø µ ÁÇ[- S - Q - Ó õº. Aa- ÷ \õ- u øÚ AÔU- ø P- ° À Cµzu öÁÒ- ø Í&
-¯-qUP-Îß Gs-oUøP {-ø» Gß-Ú-ÁõP C¸U-S® ? Hß ?
A person suffering from fever is advised to take blood test. What may happen to his
WBC count and why ?

19. |õÒ \õº JÊ[- P - ø ©Ä (E- ° - › - ¯ À Pi- P õ- µ ®) £o- ° - ø Ú ÷©Ø- ö PõÒ- Ð ®
_µ¨- ¤ - ° ß ö£¯º GßÚ ? Aa- _ - µ ¨¤ |® Eh- ¼ À G[- S ÒÍx ©Ø- Ö ®
Aa-_-µ¨-¤-°ß _µ¨¦ ö£õ-¸Ò ¯õx ?
Name the gland that functions as a circadian rhythm (biological clock) in our body.
Where is it located ? Name its secretion.

15 3427 (NS)

¤›Ä - 4 / SECTION - 4
SÔ¨¦ : AøÚzx ÂÚõUP-ÐUS® Âøh-¯-ÎU-P-Ä®. 2x5=10
Note : Answer all the questions.

20. (A) G¤-w-¼-¯® Gß-ÓõÀ GßÚ ? Auß £À-÷ÁÖ ÁøP-P-Îß £s-¦-PøÍz
u¸P.
AÀ-»-x
(B) J¸ |£º SøÓ¢u Cµzu AÊz-uz-v-ÚõÀ ]Ö-}º öÁÎ-÷¯ØÓ •i-¯õ-©À
AÁ- v ¨- £ - k - Q - Ó õº. Hß ? C¢- { - ø »- ° À AÁ- › ß Cµz- u z- v - ¼ - ¸ ¢x
PÈ-Ĩ-ö£õ¸m-PøÍ ¤›z-öu-kUP } GÆ-Á-øP-¯õÚ P¸zøu £›¢-xøµ
ö\´-Áõ´ ? Au-øÚ ÂÁ-›U-P-Ä®.
(a) What is an epithelium ? Enumerate the characteristic features of different epithelia.
OR
(b) A person is suffering from very low blood pressure and passing no urine. Why ?
What suggestion would you offer for the removal of waste products from the
blood in such a situation and explain.

21. (A) ""\õº- ÷ Põ- ª - ¯ º uø\- ° ß Aø©¨¦ ©Ø- Ö ® ö\¯À A»- S BS®''
& CÆ-ÁõU-Q-¯zøu {¯õ-¯¨-£-kz-xP.
AÀ-»-x
(B) ö\¯ØøP ¢ym-h® & Áøµ-¯ÖUPÄ®. £_, Bk ©Ø-Ö® G¸-ø©-°À
ö\¯ØøP •øÓ Â¢-ym-hz-vß öÁØÔ Ãu® SøÓ-ÁõP C¸U-S®-÷£õx
Gz-öuõ-ÈÀ ~m-£zøu £¯ß-£kz-x-Áõ´ ©Ø-Ö® Auß £i-{-ø»-PøÍ
ÂÁ›UPÄ®. ö\¯ØøP ¢-ym-hz-vß |ß-ø©-PøÍ GÊ-x-P.
(a) “Sarcomere is a structural and functional unit of muscle” - Justify this statement.
OR
(b) Define Artificial insemination. What technology is applied to cattle, sheep and
buffaloes when the success rate of crossing is low even after artificial insemination
and explain its steps ? Write the advantages of artificial insemination.

-oOo-

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