12

[This question paper contains 4 printed pages] Your Roll No.

S1. No. of Q. Paper 2285 IC

Unique Paper Code :32231401

Name of the Course B.Sc. (Hons.) Zoology

Name of the Paper :Comparative Anatomy of Vertebrates

Semester :IV

Time: 3 Hourss Macimum Marks: 75

Instructions for Candidates

(a) Write your Roll No. on the top immediately

on receipt of this question paper.

(b) Attempt five questions in all.

(c) Question No. 1 is compulsory.

1. (a) Define the following terms: 5

(i) Zygodactyly (ii) Iter

(iii) Opisthonephros (iv) Plastron

(vSynsacrum P.T.O.

22

85

2

28

5

a D

ifferentiate between

the follow

ing te

rms 10

2

. W

ith th

e help o

f neat diagram

, discu

ss in d

etail

(i T

rue h

orn

s a

nd

an

tlers

th

e ev

olu

tion

of ao

rtic arc

hes in

verteb

rates. 12

(ii) M

onocondylic an

d dicondylic sk

ull

3.

Describ

e the ev

olu

tion

of m

ale and

female

(iii) Ex

ternal a

nd

inte

rnal glom

eruli urinogenital sy

stem in

amn

iotes.

12

(iv) Plantigrade a

nd

digitigrade

(v) Spinal a

nd

cra

nia

l n

erv

es

(c) S

tate

ex

act lo

cation

an

d fu

nctio

n o

f the

4.

Desc

ribe s

tructu

re a

nd

wo

rkin

go

f resp

irato

ry

followingg: 8

org

an

s in

fishes.

12

(i) P

reen g

lan

ds

5.

(a) C

lassify

recep

tors a

nd

giv

e their fu

nctio

ns.

ii) G

ill rak

er

6 (ii) M

eibomian g

land

s

(iv) Jacob

son

's organ (b)

Explain th

e s

tru

ctu

re o

f verte

bra

te b

rain

(d) State w

heth

er

follo

win

g sta

tem

en

ts are

w

ith la

belle

d d

iag

ram

. 6

True/False

4

(4) Larynx is th

e vo

ice bo

x o

f bird

s. 6

. (a)

Co

mp

are

the d

igestiv

e tracts o

f rep

tiles,

(11) Placoid scales a

re epiderm

al deriv

atives.

bird

s a

nd

mam

mals.

111) Sebacous

gla

nd

s o

f mam

mals l

(b) D

esc

ribe th

e ty

pes o

f Cen

trum

in v

erte

- apocrine.

brates.

6 1v

Reissner's m

emb

rane

is n

ot n

rese

nt

u

the mam

malian

ear. 3

P.T

.O.

2

2285

7. Write short notes on any three:

(a) Types of feathers

(b Jaw suspensorium in vertebrates

(c) Scales in fishes

(d) Dentition

(e) Cranial nerves in mammals

3x=12

(13

IThis question paper contains 4 printed pages]

Your Roll No. 219 S1. No. of Q. Paper : 2286 IC

Unique Paper Code 32231402

Name of the Course B.Sc. (Hons.) Zoology

: Animal Physiology Life

Sustaining Systems Name of the Paper

Semester :IV

Time 3 Hours Maximum Marks: 75

Instructions for Candidates: (a) Write your Roll No. on the top immediatel

on receipt of this question paper

(b) Attempt five questions ir

(c) Question No.1 is compulsory.

(d) Draw diagrams wheree e

1. (a) Define the following term 5 () Haustral churning

(ii) Herring-Breuer reflex

(ii) Plasminolysis (iv Ectopic focus

(v Antiporter

P.T.O.

22

86

2286 b) D

ifferentiate between

(i) M

etabolic an

d R

espiratory acidosis (ii)

Isovolumetric v

entricu

lar systole an

d

diasto

le

10

ii) K

cells

(iv) S

eptal cells

(v) C

ryp

ts of L

ieb

erk

üh

n

( G

ive r

easo

ns (any tw

o) 2

(iii) Micelles a

nd

chylomicrons

(i) F

acultative reabsorption of w

ate

r occu

rs

on

ly in

DC

T.

(iv) B

oh

r an

d H

ald

an

e e

ffect

(ii) A

physiological condition that le

ad

s to

impaired absorption of V

itamin

B,

ii) Th

e intrapleural

pressu

re is alw

ays subatm

ospheric.

(v) C

oagulating an

d anti-coagulating factors

(c) Expand the follow

ing: 2

(i) A

NP

ii) JG

A

(iii) ESV

v 2

. (a)

Ho

w is

th

e

blo

od

p

ressu

re reg

ulated

? 7 E

xplain. (iv)

EP

O

5 (d) G

ive o

ne w

ord

for th

e follow

ing: (b}

Desc

ribe th

e blood clotting pathw

ays. i

Th

e

clo

tting

fa

cto

r re

sp

on

sib

le

for

platelet aggregation. 3

. (a)

Dra

w a

nd

explain portal triad. Briefly d

iscu

ss th

e fu

nctio

ns o

f the liv

er. 8

1i)

Th

e

ph

ysio

log

ical

co

nd

ition

w

hen

arterial pCO

, is le

ss th

an

40

mm

Hg

. (1i1) Io

n th

at

mo

ve

from

th

e p

eritub

ular

cap

illarie

s in to

the tu

bu

lar lu

men

.

(b) D

esc

ribe h

ow

HC

l is form

ed in

the sto

mach

?

4 (a)

Dra

w th

e d

eta

iled

stru

ctu

re o

f a nephron. 3 (v

) Th

e c

ells se

cre

ting

lyso

zy

me in

the sm

all

intestin

e. (b)

Desc

ribe th

e v

ario

us m

echanisms o

f tub

ula

r

absorption an

d tu

bu

lar se

cre

tion

in P

CT

. 7

(e) G

ive the locatio

n an

d fu

nctio

n (an

y fo

ur) :

4 (c)

Why glom

erular capillary pre

ssure

is higher

than

the p

ressu

re in

no

rmal b

loo

d cap

illaries ? 2 i)

Chordae ten

din

eae (ii)

Podocytes P

.T.O

. 3

2

2286

5. (a) Define pulmonary ventilation. Discuss the various factors affecting it. 6

(b) Elucidate the changes in partial pressures of oxygen and carbon dioxide during external and internal respiration. 6

6. (a) Define cardiac output. Add a note on the factors that regulate stroke volume. 6

(b) Discuss the unique features of action potential and contraction of cardiac muscle fibers. 6

7. Write short notes on any three of the following: 3x4-12

() Absorption of carbohydrates in the small intestine.

(i) ECG

(iii) Countercurrent exchange mechanism (iv) Coronary circulation (v Pulmonary volumes and capacities.

A 1200

14 [This question paper contains 4 printed pages Your Roll No. 201 SI. No. of Q. Paper 2287 IC

Unique Paper Code 32231403

Name of the Course B.Sc. (Hons.) Zoology

:Biochemistry of Metabolic Processes

Name of the Paper

Semester :IV

Time: 3 Hourss Maximum Marks: 75 Instructions for Candidates:

(a) Write your Roll No. on the top immediately on receipt of this question paper.

(b) Attempt five questions in all.

(c) Question N0.1 is compulsory. (d) Attempt all parts of a question together.

1. (i) Define the following 5

(a) Reducing Equivalent (b) Phophorylation (c) Amphibolic Pathway (d) Protein Motive Force (e) Ketosis

P.T.O

22

87

2

28

7

8 (ii)

Dif

feren

tiate

b

etw

een

:

(a) B

isp

ho

sp

hate

an

d d

iph

osp

hate

(b) U

reo

telic

an

d U

reco

telic

Org

anism

(c) G

lyco

gen

esis an

d G

lyco

gen

oly

sis

(vi) F

ill in th

e b

lank

s 3

(a) ... 1

s an

acyl group carrier

that

transports fatty acid

s into and

o

ut o

f m

itochondrial matrix.

(b) T

he Pyruvate dehydrogenase com

plex .

nu

mb

er of coenzym

es. (c)

Th

e three carb

on

un

it produced at th

e

end

of Oxidation of o

dd

chain

fatty acids

(d) A

nab

olis

m a

nd

Cata

bo

lism

h

as

(ii) Nam

e th

e e

nzy

me re

spo

nsib

le fo

r following

ch

em

icals

reactio

n

(with

stru

ctu

ral

formulae)

1S (a)

Glu

tam

ine

to G

luta

mate

2.

(a) D

escribe the th

ree thermodynam

icb

arrie

rs (b)

Succinyl C

oA

to S

uccin

ate

o

f glycolysis th

at n

eed

to

be o

verco

me by

diffe

ren

t en

zy

mes

an

d

reactio

nS

in

guconeogenesis.

(c) A

lan

ine to

Py

ruv

ate

(d) L

acta

te to

py

ruv

ate

8

(iv) Expand the following:

3 (b)

Desc

ribe th

e M

ala

te -A

spartate shu

ttle.

4 (a)

EM

P

(b

N

AD

PH

(c) D

HA

P

3.

(a) G

ive d

eta

iled

pathway o

f Tricarboxylic a

cid

cycle along with

th

e stru

ctu

ral fo

rmu

lae. H

ow

man

y A

TP

s are produced

per cycle ?

(d)

PE

P

8 (e)

LDH

H

(b) D

esc

ribe coupled re

actio

ns using

su

itab

le

examples.

( A

ST

4

(v) G

ive s

tructu

ral fo

rmu

lae for follow

ing (a)

A C

-18

satu

rate

d fa

tty a

cid

(b) O

xaloacetate 4

. (a)

Describ

e

Urea cy

cle in

d

eta

il cle

arly

ind

icatin

g w

hic

h reactio

ns ta

ke p

lace in

8 (c)

Fru

ctose 1

,6 B

isphosphate m

itoch

on

dria

an

d in

cytosol. 4

(d) O

rnithine (b)

Describ

e o

xid

ativ

e d

eam

inatio

n.

P.T.O

2

3

2287

Describe the sequence of reactions

involved

when one molecule of C-16 fatty acid is to be

oxidized. Add a note on energetic involved. 12

5.

6. (a) Discuss the various components of

mitochondrial respiratory chain.

of

8

b) Discuss the activation and transport of fatty

acid across the mitochondria during 4

B-Oxidation.

7. Write short notes on any three of the following: 4x3

(a) Glycogenesis

(b) Cori cycle

(c) Pentose Phosphate Pathway

(d) Inhibitors and Uncouplers of ETC

(e) Carnitine Shuttle

4 1200