Csec Biology Excretion

teto/ta/oort pmB::J pmB::J A.IB~ A.IB~U8U U8U -~IB -~IB 8q

iteo/ta/tooer)

UIO. UIO.IJ IJ S8:: S8::J8 J8BJJO BJJO IBAO IBAOUI UI8. 8.

.I UIO. UIO.IJ IJ 8P1x 8P1xo~ o~

uoq.I uoq.I13 13:: ::JJO JJO IBAO IBAOUI UI8.I 8.I spuB spuBI. I.ll ll

-q

q~

-uad

q~

tB B8.In HBS

A.IB A.IB

8so::Jnr.ll

.I SB8.I::J .I

tB 8ldw 8ldwBX BX

8q

asnur

~BqM

-9

UB s1 .llu .llu1M 1MOU OUOJ8 OJ8q~ q~ JO q::J q::J11 11J: J:

UI pmll s ls ls " \I\I l? l? I

[UJOlldIOOOgaJ .I8A11

.I8PP

SA8UP~1J:

.I8ppBJq i,ApOq

-g

toeo/taroooeat

'8u1q::J -BUI -BUI A8uP A8uPPI PI

[9

II

Il

13

SMOq SMOq

UIB. UIB.I. I.ll llB1 B1

8q.! 8q.!

-I:

gr B8.ln 8so::Jnl.ll 8P1XO~P 8P1XO~P UOq.IB::J UOq.IB::J Sp~::JB Sp~::JB OU1UIB OU1UIB

'r

ISJ!I

81

i, 8.In 8.Inpn pn.l .l

8S8q 8S8q

JO 8ln: 8ln::J :J8l 8loU oU

q.ll q.llnO nO.I .Iq~ q~

Bd

IBU8 IBU8.I .I 8q 8.In 8.In

U1 UOnB UOnB.l .l~U ~U8: 8::J :JUO UO:: :: .l8M .l8MOI OI

13

13

ueons/ioa)

arqaam

.I8A11

.I8ta.In

A8uPPI

A8uPPI

SU8:: SU8:: pooIQ pooIQ

.I8PP IQ 'UI8~ 'UI8~SA SA JO l.IB l.IB

SJaMSUV

sao I>!U!L/1.

O!)W O!)W

A.IO A.IO~8 ~8.I: .I::J :JX8 X8uBUI uBUInq nq

8.IB 8.IB P8~s P8~s11 11

sarruon.ns

mO

.I8PP lq

8q i,p8::JnpO.Id

8q.! 8q.!

:)

. .... .

~INn

aarn

S1 8.I8 8.I8qM qM

-1

MCQ

Excretion

it

ollowingpasses om th di lysi luid

lood to

Thinkin

11

Pro

0. Sample ofbloo ro en rtery nd th rena vein re nalysed. rter

ontain in

ompariso

with

urea [JOOIP1IQ20j

8.

di ra showsth stru ture oc te wi um dney

urea

s[J991PlIQ2ij

kidney

[D981PlIQ14j v en a c av a

ha ar th relativ concentrations

12

ic su st nces ound in lomerula filtrate in th idne mamm l?

high

glucose

low low

high

protein

of

salts

./

high

./

./

low

./

./

[D991PlIQ21j

./

key

machine (kidney machine).

./

p re se n

a bs en t [D981PlIQ20j

flui shoul be

lower concentr

mino id glucose

nd

lu os

nd salt

lu os

nd urea

fl id ou

lo

ou

dialysis fl

-_1[J991P1IQ20j

-:(/MCQ

Answe

[[

IT lL

[6[OITdlt6aJ

:J

sv

!.! EA1!:> EuaA

B.rqla.rn .raw.rn

i, al .rlUa;)UO;

SO

ua.r

sl a.raqM

{;

hauplll

'91

.rappuIq

=u

[[gOlTd/L,6aJ '0(';

[8[OITdl£6aJ

.IappuIq .raAH .Iappurq

.raAH

.IaAH

.rappuIq

afjV.l°1S

-;)u

hauplll

U O ? 1 .l1t!.!

'x

puu Aluo

pUB

AluO

pUB

:J

AluO

:J

(,punoJ

haup11J:

aqua.rn

EM a. aq

Jappl1lQ 01

uononpo.ui

i,suoq h.r. U::> u;!.ro q;)lqM

asaq

'hpOq -.IO P.Ilq pUO;)a

1'

ap hq '61

elJ08

eAl!:) l1U8

[8[0ITdI96FJ

01

Usa

st

'SI

:J [ago 1[d186FJ

'Pln

q;).rBlS i,sa.rl1{ g'891

utoiozd

:J

lo.ra;)hl;! lBJ

hq a.

JO sa.rll

i,parn.roJ

'81

'v

[6[0IldI96aJ

.ralBM

uam

[tOITdI86FJ

UAU;)BuaA

:J

UlaA IBua.r

stIus

:J

U1aA h.rBuolUlnd uos. ad

Aq IBaq

'1 SJaMSUV

0:>l1li-.6-.

'L

i,Ba.r JO U01lU.IlUa;)UO;)tsaMo aq qllM poor satarao lassaA pool q;)ll{

'&1

Excretion

it

MCQ 11

in?

[J02IPlIQ20j

id

t L .

tu

urethra ureter bladder kidney

th

la

[D02IPlIQ20j

urethra ureter

[J941PlIQ18j

tr first~last

[D03IPlIQ19j

ma

th

urethra

to

lt

idne

lo ti

It

urethra

th

vein ureter

simila

It

ureter

vem

in

lo

It

urethra

urea.

[D931PlIQ18j th

lood [D03IPlIQ20j

dialysis fluid out

bloo

from

patient

- E : ~ \ i ~ ~ : ; ~~: ~:.; ~: .: ~ ' ; ~ : : ~

::::_= . ::.:::~ ; 7 ' ~ 1 ~ ' C : ; : : 1 ~ · ; : : · : ~ : . ; · · ~ · ; : ; ". ' " : : : ; . " ' " : :;· : ' " " . ; : : ~ : " ' . ; :. ; : " " ' i . ~ : : ; : " ' :~. ; : ~: : ; ~ " " : ; ; ' - ~ . " " . : · : ; : " " : : ; . 2 : - 1 ~ ; - ; r ~ : ~ : : ? ' ~ ~ : . ~ ~~i~~t~rning

(partiallypermeable)

dialyslsflul In

[61~)/ t.uroa) pmB; -~IB 8l

A.IBlU8l

lUO.IJ S8;)8B JO IBAOlU8.

lUO.IJ 8p~XO~ UOq.IB;)JO IBAOlU8.I spuBI~ lB

8q

l UO .I J l 8 M

S B8 r8 .

SpUBr~ Im~8.IpB uO

Id

[8ItJ/ldltOa

[::~

6P8lB.IfU8;)UO;) asour B8.I

S! 8.I8qM

arad

lU8lSA A.IBU!.I UBlU SMOqS lUB.I~B!P 8qJ

[1(JtJlIdl80f'J pUB

pUB

pUB

JO uoQB.IlU8;)UO;

mo P!nl S !s fi le !

pUB

=n

fiJajJe

u! p!njj S!sfile!

-8U!q;)BlU SJaMSUV

O!)II\I __-_

8 Up ~ t B q ~n O. Iq l pOONJO MOll 8q

! nl l

s 1S AI B1 P p

SMOq lUB.I~B! 8qJ,

THEORY 11

Excretion

it

Excretion

THEORY

Section

Question ig ll line

.1 show longitudin se tion roug th omen of person (not om na or ns re shown) nd some et il of th em rane th th bdomin it

muscle of the abdome

membrane

Fig. 5.1

(b)

ig .2 show method of di lysi used ce se to function

patients whos

idne

key dialysing fluid dialysin flui is poured into th abdomina cavity

fe o ur s l at er , t h f lu i i s d ra in e ut an fres flui is introduced

Fig. 5.

th

il th luid is in th domina lood in pi laries throug

it

emic lsca pass into it from em rane

To preven useful chemic ls le ving th patient' blood,certain chemic ls ma dded to th di lysing flui efor it enters th domina it

in

c

e

.lalBM pU Ba.l[l

UPIS

=-n

aq

.laAn sAauPDI M p u u lf .I O

saonpoad a'JSUA\.anoqu'Jaw

A . I0 'J a. :m X 3 :

·.laAH U~ Sp~J

OU~UIBpU

Jso J~qO.laBUIO.lJ.lalBM pU ap~xo~ UOq.lBJa.lB saonpozd alsB

sutoio.rd JO

ucnundsar

JqoqBlaU

U~BU aqJ,

(B

uOl1nlos

UO/gdIL6!'!

[Z Baq

NOI~s:moU

~N:lIIIIIIIIO:)

al ls 'pnpO.

alSB

JB

JSa

.l J'pUB UIs~IoqB aU JO sionpoad ;; U011sanb

paonpoad

pam auanud ss ~U~SnBJ uonundsar anss~l .loJ alqBHBABasoJnl.l aq'l saJnpa.l asoonp JOsso'I 's~sAlB~P.llu~np pool aq UIO.lJasoJnl.l JOsso] aq lUaAa.ld OJ,- uO!1vuvZdxg ZVJ7wa1jJj

awvN

uo~snJJIG sllB

lB.lau~w Ba.l[l

JBUI ls

'Z '1

(q)

a.Inpn.llS armon.ng

UI.llB.lqdB~p uounjog

[90/M/lO!,!

..................................................uoninnndx»

[Z

.......................................

ZVJ7wa1jJjo eunru

Jl (!m H:lMSNY

uo ~N:lIIIIIIIIO:)

[1] Pa

[Z

.llU~SA{l1~Pql OlU~poor

ge

:lOYd

:J

AHO:lH~

eo aq'l UIO.lJssa

aq

al

'p~nu II!A\. 'lBq slBJ~UIaqJ OM aUIB

Excretion

THEORY

di gr mm ti representation of

(b)

Pump (t driv bloo throug th dialysis machine)

11

kidney di lysi machin is show below:

Cel loph anetub

----.

Blood fro artery

Dialysis fluid out

lood return tovein============~============:Z~.E:~==~~ Dialysis d i

s m

ne th coiledcelloph ne tubule is bathed in steril di lysi flui whic collects th wast mole ules elloph ne tu ul ts semi-perme le memne whic lows sm mo ecules of su st nces to if us throug nd prevents pass of lood ells nd larg proteins ia si luid ontain refull re ul te moun of dissol ed salt nd lu os with omposition simila to th lood pl sm (without nitrogeneous waste) on entr tion gr dien is se up nd nitrogeneous wastes ex es minera salt nd othe toxins diffus from patients bloodacross th cellophane into th di lysi fluid. he di lysi flui is ch nged regularl to remove th wast substances nd to maintain th diffusio gr dien betwee th patient' bloo nd th di lysi luid patient' loodis le from rter in is orearm throug th oiledcelloph ne tube in th di lysi machin nd then re-enter pr in th ma in dditio of nti- lottin emic l. temper ture of th di lysi flui is maintained od temper ture xcretion th remo of me emic re tion in th ells

olic wast

produc

wh

re orme

in

emov of faeces (def ec tion is th remova of undigested or indigestible substances from th liment ry cana throug th nus. Sinc faec matter is no produced by meta olism, remo of faeces nnot be onsidere excretion.

Question

xplain ow th

lood system

rrie

named

wast

produc from th

li er

[D951P21Ql0bJ

Solution

Urea is producedin th live during th

de mination ofamino cids It is carried It

rter

th

idne

COMMENT

ANSWER

IO

SlP"

ss xa

UB

am ~U!AOU al

aI

ll dUI! UB AB

'ApO aq aU !}{aqJ,

(0

umuae lq~m (q) .IaW.Ifl

BAB; BuaA .Io!.IaJuI

(B)

UOl1nlOS

teo/sa/rea) llO

J~

a~uBqo PIno

[Z

'z

IU

[1]

'3 pUB

[z]

l·S!:I

'tI

NOI.1S3nO

.1N3111111110:)

...............................

................................

00'0

sppe ouiure

00'0 00'0

01"0

co'z

£0'0 lu~uo
%/UO!lDJlU~:JUOJ

·3 pUB Sn sa Bl aqJ,

sppe ouuu

so'o

%/UO!lDJlU~:JUOJ

saueuodtnoo U!Bl.Iao JO sa~BluaO.Iad aq sampn.Il

pa !O SSBpUB Aa

!}

JO

B.I~

SM qS

.~!.oI

uOl1sanb

39Yd

AH03H.1

U O !1 9 J: lX 3 . .. .

:J!un

Excretion

ink

11

THEORY

(d) (i) ea

(ii)

ncentr tion

of

lu os

ould ncre se

thou

su ic en

insuli

re

Question

excretion.

[2]

(b)

(ii) th

COMMENT on QUESTION

idne s?

[5]

[J94

P21Q8]

re

rb

Solution (a

reti

expire

throug rm

is th

ro es

whic

meta olic wast

ialysi

ma

pr du

(e.g

ir

ubin

in th

ine.

tu in

wh

sele ti el

COMMeNT

ANSWER

~+ ln ln

'S l+

lU

sassnd

lq

0 + . l8 +U M

nuv

lu

-nvv JO

aq

lO

~P8

~ 8 . l8 q

l0

In

trontsoduroo

=n JO H3MSNY

. l0 W S 8S nU J

=n (q)

8A8

.1N3111111110:>

'UO~+

(C

U~'l{S

uouonpozd

S U8 .l JU ~ :8pnpu~

osuodsaz

arruazedurea

u~ P8 u~Hu

urruar

pUU

sauauusnrpu

arruarsdnrea

eonpozd

A~

sunazo

'W l{

IU

8q.!,

A .l OS U8 S 8 q

(1

uV

arrunrad '00 JO

l .l 0 0 + U On U

. l0 JU ~

l{ lO

l8 S 8J O l d

l{

Aq

ln

~ W~ 1M OU U

U~

~M

d 8' l

'l . In +U .I 8 w 8

A pO q 8 l

U~S8 UU

(u

uonnlos

(JO

e a / e oa t

[£

SA8Up~'l

[L ' +U 8 NOI.1S3nO

£)

U~'l{ U O. l~ AU 8 I UU .l 8 U ~

.1N3111111110:>

U U S UO J

U IU +U ~U W 0 + d l8 q

f jU ~M On O

8q

MO

8q

(q)

8l{+

(a)

8 q~ .l JS 8

uO]lsanb

39Yd

AH03H.1

U O 8 JO X

I!Un