excretion printing
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Human Excretion1. Excretion : process of
removing waste products ,produced during chemicalprocesses in the cells.
If the wastes are notremoved, toxic substancbuild up and can damageorgans in the body.
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2.Human Excretoryrgansa!"#inb!$ungs
c!%idney & main
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"#in
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Organ Process Wasteproducts
%idney 'rinating (ater, minesalts, urea
"#in sweating (ater, minesalts, urea
$ungs Exhalation )arbon
dioxide, wate
*.Excretory rgansand Excretory
products
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'rea is a waste producformed in liver from
excess amino acids inthe body.
'rea is remove as aurine.'rine also contain
mineral
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+. Importance of Excretion
a!o remove wastes products, li#eurea. -ccumulation of this producan damage the internal organs.
b!)arbon dioxide from respiration
must remove uic#ly because thehigh level of this gas can increasethe acidity of blood.
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c! Excretion of excesswater and mineral salts c
maintain the chemicalcomposition, temperaturewater and pH balance of
the body system
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%epentingan "istem /er#umuhana!'ntu# mengeluar#an bahan buangan
beracun seperti urea. 'rea a#anmerosa##an organ dalaman 0i#adibiar#an ber#umpul di dalam badan
b!%arbon dio#sida mesti di#eluar#ansegera. -ras #arbon dio#sida yangtinggi a#an mening#at#an #easidan
darahc!/er#umuhan air dan garam mineral
berlebihan a#an menge#al#an#eseimbangan #omposisi bahan #imia
air dan pH di dalam badan.
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. he urinary system inHuman
%idney are found at thebac# of abdominal cavit
0ust below the
diaphragm.
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P t F ti
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Parts Function
%idney Excretory organ that remove
wastes li#e urea , water, andmineral salts from the blood inthe urine
'reter ube that carries urine from the#idney to the bladder
ladder emporary storage for the urinbefore removal
'rethra ube that carries urine from the
bladder for removal
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3./athway of urine4ow
.
"tarts from the #idney, tothe ureter, then to thebladder and lastly to theurethra
%idney ureter bladder
urethra
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5. "tructure of the #idney ean6shaped and roughly
the si7e of a 8st. /rotected by lower ribcage.
uter transparent coat iscalled capsule.
2 parts :6 dar#er protective part &
cortex
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)ortex& ma#es upabout one third of the
#idneyhe inner boundary of
the medulla formsseveral pyramids whicopen into a sac6li#e
cavit called elvis
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9.unctions of the #idney o 8lter blood and
remove urea, excessmineral salts and waterto form urine
If the body has too mucwater, reabsorption willbe less. he urine
produced will be diluted
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;. Importance of maintaininhealthy #idneys
ur food may contain toxisubstances such asmercury, lead, arsenic andinsecticides. hese
substances can damagethe #idney.
ood that is too salty and
sweet is also bad for the
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(e should drin# plenty ofwater and consume less saand sugar
- high inta#e of salt cancause high blood pressure.
High concentration of salt
encourage the formation of#idney stones.6666#idneyfailure.
(e should avoid dru s
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%idneys may also bedamaged by infections.
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11.>ialysisis a techniue ofseparating particles ofdi?erent si7es in a liuidmixture.
. - patient@s blood needs topass through the dialysis
machine many times toma#e sure all wastes areremoved.
. /atient must be connected
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In dialysis, blood is8ltered through an
arti8cial membrane inthe dialysis machine.
i l i d
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>ialysis does not curethe damaged #idney.
It is only an arti8cialsubstitute for theoriginal #idney
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Excretion in /lants (aste products :
a! waterb! carbon dioxidec! oxygen
d! nitrogenous waste Excrete mainly thro stomat
/lants remove their excretor
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/lants remove their excretorproducts thro * ways :
i! "imple di?usion
ii! ormation of crystaliii! "hedding their leaves, bar
and 4ower
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Method Excretoryproducts
"imple di?usion xygen, carbon
dioxide, waterormation of crystal Bineral salts 666forms
- )alcium carbonatecalcium oxalatecrystal.
-"ilicon salts deposiin the leaves of grato strengthen the leblade
"hedding =leaves, bar#
and 4owers!
Citrogenous waste
remove as a complex
E t d t d th
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Excretory products and theuses
Excretory
products
Source Use
$atex Dubber tree o ma#evehicle tyre
Desin )ertain treestems li#ecasuarina tree
o ma#evarnish andgum
um )ertain treestems li#eacacia tree
o ma#e coumedicine
Excretory products and the
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Excretory products and theusesExcretory
productsSource Use
annin ar# of plantsli#e tea,co?ee andmangrovetree
o ma#e in#
Fuinine ar# ofcinchona tree
o ma#emedicine totreat malar
il lowers orleaves
/erfume anointment fo
Excretory products and their
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Excretory products and theirdangerousExcretory
productsSource Reason
for
dangerpium lowers of
poppy plant>rugs
Borphine Ba#e frompium
Heroin Ba#e frommorphine
Excretory products and that are
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Excretory products and that aredangerousExcretory
productsSource Reason
for
danger)ocaine $eaves from
coca plant
)annabis $eaves and
dried 4owersof thecannabissativa plant
Cicotine obacco leaves $ungs cance
)a?eine )o?ee beans -ddiction
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