Rolul enzimelor in etapele digestiei (bucala,gastrica,intestinala)

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  • 7/24/2019 Rolul enzimelor in etapele digestiei (bucala,gastrica,intestinala).

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    ROLUL ENZIMELOR DIGESTIVE IN ETAPELE DIGESTIVE

    (BUCALA,GASTRRICA,INTESTINALA).

    Digestiaeste procesu !"#oo$#c c%re &uce % 'et%o#"%re% %#'eteor.Acest% %re

    u %spect !"#c s%u 'ec*%#c s#,'%# %es+petru c% %ceste% e #terese%"% %#c#+u

    %spect c*#'#c.

    I $est#e se st#$ p%tru et%pe pr#c#p%e,e$%te &e-

    . Gur%

    /. Sto'%c

    0. Itest#e sut#re

    1. Itest# $ros

    . Gur%

    Rou 'ec%#c-

    +'%st#c%t#%

    +&e$ut#t#%

    Rou c*#'#c-

    +secret#% s%#%r%

    S%#% cot#e o e"#'% 2o%rte #'port%t%,u'#t% pt#%#%,ce %re propr#et%te% &e %

    tr%s2or'% %'#&ou # '%t%"%,%c% #tr+u "%*%r co'pe3,% c%ru# $est#e se %

    preu$# p%% # #test#e.

    De 2%pt,# c%#t%te% uc%%,u %re oc #'#c '%# #'port%t &ec%t 2or'%re% ouu#

    %#'et%r.S#$uru c%re #s# #cepe tr%s2or'%re% %#c#,su e2ectu pt#%#e#,este

    %'#&ou.De u&e re"ut% #'port%t% ue# '%st#c%t## su!c#ete s# % ue# &et#t##

    s%%to%se.

    /.Sto'%cu

    Rou 'ec%#c.

    C% s# # c%"u #test#uu#,%cest ro este pur per#st%t#c.Ac% sto'%cu este %#'%t+#

    'o'etu $est#e#+&e cotr%ct## 'uscu%r % c%ror scop este e%co%re% cot#utuu#

    s%u # #test#e.

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    Ro c*#'#c

    Sto'%cu % secret%,'%# #t%# sucur# $est#e(%c#& cor*#c,'uc#%) petru % cre%

    u 'eu %c#&,per'#t%&,%st2e,peps#e# s%+s# #&ep#e%sc% '#s#ue%.

    Peps#% % %t%c% prote#ee (c%re% s# pestee) s# % #cepe tr%s2or'%re% %cestor%.

    L#p#&ee ($r%s#'#e) 2%c o#ectu uu# #ceput &e *#&ro#"% c%re % cot#u% #

    #test#e.

    0.INTESTINUL SUBTIRE

    Act#ue 'ec%#c%

    +per#st%t#c%

    Act#ue c*#'#c%

    A'#&ou,&ee#t '%to"%,se tr%s2or'%+'utu'#t% e"#'eor secret#%p%cre%t#c%+# $uco"% ("%*%r s#'pu).

    L#p#&ee sut tr%s2or'%te # %c#"# $r%s#.

    Prote#ee sut tr%s2or'%te # %'#o%c#"#.

    D%c% totu s+% petercut #e # #test#% sut#re,sust%tee utr#t#e preucr%te or

    pute% ! rect %s#'#%te &e c%tre or$%#s'.

    Guco"% ,%'#o%c#"## s# %c#"## $r%s# or ! %s#'#%t# pr# e#er%re # s%$e.

    1.INTESTINUL GROS ( cooe &rept,%sce&%t,tr%sers,st%$ s# &esce&et)

    Act#ue 'ec%#c%

    +per#st%t#c%

    Act#ue c*#'#c%

    B%cter##e #test#% $ros %u '#s#ue% eset#%% &e % %ct#o% pr# #ter'eu

    2er'et%t#e#,%supr% restur#or &e %'#&o s# &e ceuo"%,#%r pr# #ter'eu

    putre2%ct#e# %ct#oe%"% %supr% re"#&ur#or prot#ce.I %cest st%u, %re oc %sort#%

    ee'eteor %s#'#%#e s# 2or'%re% '%ter##or 2ec%e,cu o eetu% pro&uct#e &e

    $%"e.

    A'estecur#e %#'et%re.

    C%& o'u c%ereor pe%c% % %%to%re,e se *r%e% to%t% "#u% cu 2ructee

    s%%t#ce pe c%re e cue$e% pe p%rcurs.Itors % %&%postu u#,cosu'% c%re%

    %%tuu# pe c%re # uc#s%se. O'u este s#$ur% !#t% #e c%re cosu'% %#'etee

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    &up% ce e+% %'estec%t. Se p%re c% %cest% este uu tre 'ot#ee eset#%e

    petru c%re su2er% %t%t &e &es &e tuur%r# #test#%e.

    Tuur%r#e #test#%e &%tor%re ue# $est## pertur%te # 'o& cost%t s%u+&eseor#

    % or#$#e% uu# '%re u'%r &e o#,2%r% c% e$%tur% c%r% tre c%u"% s# e4ect s%

    po%t% ! st%##t%.

    C%& sut %soc#%te cu o %t% *r%% ,2ructee pertur% e2ect# $est#% #tre$uu#

    s#,cu %cee%s# oc%"#e,#s# p#er& propr#et%t#e ee!ce petru c%re %u 2ost #te$r%te.