2009Spring Test 1

I t h o liich of a a t a l y s ro f a n e n e r g e

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Unformatted text preview: a t a l y s ro f a n e n e r g e t i c a luy f a v o r a b lre a c t i o n y a n e n z y m e i l l e n a b l e h e r e a c t i o no o c c u r s ln e b w t t r "y catalyze many d ifferentchemical eactions r !an " nzym c y s s s c ) a n en.yr" e a nb i n dm a n ys t r u c t u r a l lu n r e l a t e d u b s t r a t ea t i t s a c t i v e i t e a a d) enzymes p ermanently ltereda fter c atalyzing reaction are e) n oneo f t heseis correct [email protected] , -p-ru.,'c, COM o - PR EM ED4 11. COM - PR EM ED4 11. ( y com d o m C e l l u l o sa n ds t a r c h a m y l o s e )r e b o t h p o l y s a c c h a r i d e s p o s e e n t i r e l y f g l u c o s e o n o m e r s ,e t o n e f o r m sa f i b e r - l i k e e a r a W c s t r u c t u r e n dt h e o t h e rf o r m sa g r a n u l as t r u c t u r e . h i c ho f t h e f o l l o w i n g o u l dh e l pa c c o u nfto r t h e s e i f f e r e n c e s ? d o s a ) t h e l i n k a g e f s o m em o n o m e r t o m o r et h a no n e o t h e rm o n o m e r de ( n o b ) d i f f e r e n cie t h e l e n g t h s f t h e p o l y s a c c h a r ic h a i n s b r a n c h i n g ) i f j l n e t i n k a g e f m o n o m e r t h r o u g h r - l i n k si n s t a r c h n d 0 l i n k s n c e l l u l o s e o s t a do d ) t h e 3 - Ds t r u c t u r eo f t h e p o l v s a c c h a r i me l e c u l e s s i e ) c h o o s eh i sa n s w e r f a l l o f t h e a b o v e o u l dh e l pa c c o u nfto r t h e s e i f f e r e n c e s t c d d ) a n o i l d r o p l e tn w a t e r i ED4 11. COM i t b of W h i c ho f t h e f o l l o w i n gs m o s tl i k e l y o b e d i s r u p t e d y h i g hc o n c e n t r a t i o n s s a l t ? b)peptide ondsn a protein i c)J complex f two proteins a ) a l i p i db i l a y e r b o t c _e) hoose his answerif n one o f t heseis correct MPRE M ED4 11. COM - PR EM p e . gm r c r o o r g a n i s n w h i c ha m a l et u r n sb l u ei n t h e p r e s e n c o f a f e m a l eT h e m a l et u r n sb l u eb e c a u s e r o t e i n im l ( Y o u a r es t u d V r na \ Z l s e c r e t e b y t h e f e m a l e i n d s o a n d a c t i v a t ea r e c e p t op r o t e i n - Xo n t h e m a l er e s u l t i n ig t h e c o l o rc h a n g eY o ui s o l a t e 2 b r n a d t s . / p r o d u c ea m u t a n tf o r...
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