This question paper contains 4 printed pages.

Your Roll No. ... SL No. of Ques. Paper: 6743

Unique Paper Gode 32231402

HC

Animal Physiology: Life

Sustaining Systems B.Sc. (Hons.) Zoology

Name of Paper

Name of Course

Semester :IV

Duration 3 hours Maximum Marks :75

(Write your Roll No. on the top immediately

on receipt of this question paper)

Attempt five questions in allL

Question No. 1 is compulsory.

Draw suitable well labelled diagrams wherever necessary

1. (a) Define the terms given below:

(i) Compliance

(i) Hematocrit

(iii) Stroke volume

(iv) Ultrafiltration

5 (v) Portal triad.

(b) Differentiate between:

(i) Granulocytes and Agranulocytes

(ii) PCT and DCT

(iii) Acidosis and Alkalosis

P. T. O.

2

6743 3

67413

(iv) A

uerb

ach

's a

nd

Meissn

er's

Nerv

e P

lex

us

8 (0

Write significance o

f the follow

ing:

(i) B

ico

ncav

eshape o

f erythrocytes (c)

Ex

pan

d th

e fo

llow

ing

:

) A

NP

(i)

Long refractory period in

card

iac m

uscle

(ii) G

IP

ii)

P

resence

of

sub

mu

cosal

gla

nd

s in

th

e

du

od

enu

m.

3 (ii)

GB

HP

(iv)

PC

V

2. (a)

Disc

uss

in d

eta

il th

e co

un

tercu

rren

t m

ech

an

ism

9 d

Write the location an

d function o

f the follow

ing: an

d its im

po

rtance.

(b) A

dd

a

no

te

on

th

e

pre

ssure

s responsible

for

glo

meru

lar filtra

tion

.

) P

ap

illary

mu

scle

3 (ii)

Podocytes

(ii) P

an

eth

cells

3. (a)

Wh

at

is card

iac

ou

tpu

t?E

xplain the factors

that

9 (iv)

Caro

tid b

od

ies reg

ulate th

e s

trok

e v

olu

me.

3 (b)

Co

mm

en

to

n c

oro

nary

circ

ula

tion

of th

e h

eart.

(e) S

tate

true o

r fla

se:

Disso

cia

tion

cu

rv

e sh

ifts to

th

e right

wh

en

hydrogenio

n

co

ncen

tratio

n

increases in

blo

od

.

4. (a)

Desc

ribe

the

ex

trinsic

an

d

intrin

sic pathw

ay o

f

9 (i)

blood clotting.

(b) C

omm

ento

n th

e fibrinolytic

systemn.

3

(i) A

trial systole is

follo

wed

by isovolum

etric contraction p

hase in

the card

iaccycle.

5. (a)

Discu

ss in d

etail differen

t phases of digestion.

9

(i) During

no

rmal

breathing th

e

pressu

re

betw

een

the tw

o p

leural layers (intrapleural

pressure) is sub

atmo

sph

eric.

(b)

Dra

w

a w

ell

lab

elle

d

dia

gra

m

of

oeso

ph

ag

us

sho

win

g h

istolo

gic

al d

eta

ils. 3

(V)

Ald

ostero

ne

co

nv

erts

angiotensinogen

1n

to

ang

ioten

sin I.

6.

(a)

Ex

pla

in

the

mech

an

ism

of

gas

ex

ch

an

ge

in

respiration. 6

(V) P

hrenic neves inn

ervate

the d

iaph

ragm

. (b)

Writea n

ote o

n th

e neural control of respiration. 6

(VI)

Nitric o

xid

e acts

as

a v

aso

co

nstric

tor.

P: T

. O.

6741, 7. Write short notes on any three of the following:

(a) Spirogram

(b) Structure of Liver

(c) ECG

(d) Regulation of blood pressure

(e) Juxtaglomerular apparatus. 4,4,4

1200

(1 This question paper contains 4 printed pages

Your Roll No. .. S1. No. of Ques. Paper : 6744 IIC

Unique Paper Code 32231403

Name of Paper Biochemistry of Metabolic Processes

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

Semester :IV

Duration :3 hourss

Maximum Marks :75

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

Attempt five questions in all.

Question No. 1 is compulsory.

Structures to be given in all pathways.

1. (a) Define:

(i) Glycogenin

(ii) Ketonemia

(ii) Amphibolic Pathway

(iv) Uricotelic Organismns

(v) Cytochromes. 1x5=5

(b) Differentiate between:

(i) Thioesterase and Thiolase

(i) Anabolism and Catabolism

(ii) Glucogenic and Ketogenic amino acid

(iv) B oxidation and w oxidation P. T. O.

2 6744

6744

2x

5 10

(v) H

ex

ok

inase a

nd

Glu

co

kin

ase.

2. (a) E

lucidate the m

ctabolic pathway

of bionynthesis

(c) Nam

e o

f Palm

itic acid. 9

(i) A

th

ree

carb

on

am

in

o

meta

bo

lized

to p

yru

vate

acid

that

is (b)

Wh

at is

the im

portance o

f Fatty A

cid Synthase

(FAS) m

ultienzyme

complex?

3

(ii) T

ransp

orter

of

Acyl

CoA

in

to

the

mito

ch

on

dria

l matrix

x

3. (a)

Giv

e a d

eta

iled

acco

un

t of ketngenesis in líver.

that

co

nv

erts

G

lyceral to

(ii)

Enzyme

Glycerol-3-P

hosphate

(h) W

hat

role

d

o dehydrogenases

play in

the

beta

3 o

xid

atio

n o

f fatty acid?

(iv) A

ny on

e ra

te lim

itingstep

in G

lycolysis.1x

4=

4

4. (a)

Describ

e th

e re

actio

ns o

f Citric

Acid

Cycle.

(b) G

ive a

brie

f acco

un

t of th

e r

ate

limiting

reactio

ns

of

glycolysis. C

alc

ula

te

the

en

erg

y

yield p

er

mo

lecu

le o

f glucose ox

idise

d.

(d) W

rite the im

portance of th

e follow

ing 4

(i) T

hiamine P

yrophosphate

(ii) A

cyl Carrie

r Pro

tein

5. (a)

Desc

ribe th

e

pro

cess of G

lycogenolysis an

d give 9

(ii) P

yruvate Carborylase

its imp

ortan

ce.

(iv) O

xaloacetate (b)

Why

are an

imals u

nab

le to

co

mv

ert fatty a

cid

s in

to

glucose? (v)N

AD

PH.

1x

5=

5

3

(e) E

xpand the follow

ing: 6

. (a) E

xplain th

e O

xid

ativ

e

phase o

f P

en

tose

Phosphate pathw

ay.(i)

FA

D

(i) Tyr

or

(ii) P

DH

(b)

Men

tion

th

e im

po

rtance

of

inh

ibito

rs

6

un

co

up

lers o

f Electro

n T

ran

spo

rt Ch

ain

.

(iv)

PL

P

(v)

DH

AP

7.

Write s

ho

rt no

tes o

n th

e follow

ing: (Any th

ree)

(vi)

AM

P

1/2

x6

=3

(a)

Glu

con

eog

enesis

P.T.O

.

4 6744

(b) Glycerol Phosphate Shuttle

(c) Chemiosmotic Hypothesis

(e) Role of Carnitin. 4x3=122

1200

SET-A

Sr. No. of question paper S843 Roll No.

Unique paper code :223403

Name of the paper BIOCHEMISTRY

Name of the course B.Sc. (HONS.) ZOOLOGY

Semester :IV

Maximum Marks :75

Time :3 Hours

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

This paper contains seven questions.

Answer five questions in all.

Question No.l is compulsory.

Write structural formulae where specified.

Q.1.(a) Define the foliowing: 4)

() Holoenzyme (ii) Zwitter ion

Gii) Ketosis Oxidate phs«plasuate iv) Allosteric site

b) Differentiate between the following: (10) ) Glucokinase and hexokinase

(i) Transamination and deamination

(iii) Ketogenic and gBucogenic amino acids

(iv) Glycosidic and peptide bond

(v) Starch and Cellulose

(c) Give the structure of the following:

(1) AC-16 saturated fatty acid ) A 3C amino acid which is the precursor in gluconeogenesis

(4)

(ii) A disachharide composed of glucose and fructose

iv) A dicarboxylic intermediate of TCA cycle

(d) Expand the following: 3) ) DHAP

(i) FAD

(i) PDH

(iv) FMN

(v) c-AMP

(vi) TPP

(e) Give the major contribution of the following scientists: (2) ) Hans Krebs

i) Luis Leloir

(Fill in the blanks (4)

(i) Name the enzyme which catalyzes the conversion of:

Glycogen Glucose-1-Phosphate. Gi) Glucose 6-phosphatase is _in the muscle. ii) Pyridoxal phosphate is a carrier of an group. (iv) is the primer required during glycogen synthesis.

.2. (a) Elucidate the Michaelis-Menten kinetics for a one enzyme-one substrate rea 3)

(6) Explain the function of transaminases in the catabolism of amino aciu Support your answer with suitable example. (4)

Q3. (a) Explain the -oxidation pathway of palmitic acid. (6)

( Discuss the Embden Meyerhof pathway for carbohydrate lism. (6)

Q.4.(a) Enumerate various fates of glucose in the living system. (5)

6) Describe secondary and tertiary structures of the proteins. O ent-

upon the factors involved in stabilizing these structures. (7)

Q.5. (a) With the help of structural formulae, Describe the citric acid cycle use. structural.

formulae). How is it regulated in the body (7) (b) Comment upon the statement, "Gluconeogenesis is not a reversal of glycolysis",

Support your answer with suitable chemical reactions (5)

Q6. (a) Describe the urea cycle, represent chemical reactions with structures and

enzymes only. (9) (b) Briefly explain the malate-aspartate shuttle. 3)

Q.7. Write short notes on any three of the following: (3X4 12)

() Cori cyole

(i) Allosteric inhibition (i) Ketogenesis iv) Glycogenolysis