Bio1_ch8-9post

Bio1_ch8-9post - Metabolic Pathways Chapter 8-9 !

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Chapter 8-9 !"#$%& !"(&)#* +#,-./01*) Metabolic Pathways !"#$%&’() +$#,-$. 2 *#$1#* /3 45#)14-0 $#-46/"* !7-)80#9 :#00;0-$ $#*81$-6/" /0$%&’() +$#,-$.1 < .;10= 4/)80#7 )/0#4;0#* ! 4/"*;)# ! 2$#$%&’() +$#,-$.1 < .$#-> =/?" 4/)80#7 )/0#4;0#* ! $#0#-*# ! 304.5" 6 304.5" 7 304.5" 8 9"$):&0 6 9"$):&0 7 9"$):&0 8 ;<&=>)# ?#$<:0@ 5&’")>’" / A 2 B 30"<@. 2 4-8-41,& ,/ 8#$3/$) ?/$> 2,"5()$’ "0"<@. 2 #"#$%& *,/$#= 1" 45#)14-0 ./"=* !79 #"#$%& 1" 3//= !"#$%& 4-" .# 45-"%#= 3$/) /"# 3/$) ,/ -"/,5#$ .;, "#@#$ 4$#-,#= /$ =#*,$/&#= Conservation of Energy !"#$%& 1* *,/$#= 1" ,5# ./"=* /3 %0;4/*# Energy can be converted from one form to another / =(C"< ,$1 5&<" +&#"0:$’ "0"<@. &0 #," +’$D&<5 #,$0 (0 #," -$#"<E B(C(0@ )&0C"<#1 +&#"0:$’ "0"<@. #& F(0":) "0"<@.E 2’(5%(0@ >+ )&0C"<#1 #," F(0":) "0"<@. &G 5>1)’" 5&C"5"0# #& +&#"0:$’ "0"<@.E / =(C"< ,$1 ’"11 +&#"0:$’ "0"<@. (0 #," -$#"< #,$0 &0 #," +’$D&<5E
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Energy Conversion H !&<" G<"" "0"<@. I,(@,"< ! J H K"11 1#$%’" H L<"$#"< -&<F )$+$)(#. M0 $ 1+&0#$0"&>1 ),$0@" H N," G<"" "0"<@. &G #," 1.1#"5 =")<"$1"1 I ! ! < OJ H N," 1.1#"5 %")&5"1 5&<" 1#$%’" H N," <"’"$1"= G<"" "0"<@. )$0 %" ,$<0"11"= #& =& -&<F H K"11 G<"" "0"<@. I’&-"< ! J H !&<" 1#$%’" H K"11 -&<F )$+$)(#. I$J L<$C(#$:&0$’ 5&:&0 I%J B(P>1(&0 I)J 2,"5()$’ <"$):&0 Fuel rich in chemical energy Gasoline + Oxygen Heat energy Heat energy Food + Oxygen Energy conversion in a car Waste products poor in chemical energy Carbon dioxide + Water Carbon dioxide + Water Kinetic energy of movement Combustion Energy for cellular work Energy conversion in a cell Cellular respiration Energy Conversion in Cars and Cells Triphosphate Diphosphate Phosphate (transferred to other molecules) ATP - Adenosine Triphosphate: “Cellular Batteries” /N; 2 4/",-1"* #"#$%& ;*#= ,/ =$1@# 4#00;0-$ ?/$> A=#"/*1"# B C 85/*85-,# %$/;8* /N; 1* .$/>#" =/?" ! /B; B #"#$%& /N; 1* $#4&40#= 3$/) /B; B 85/*85-,# ,5$/;%5 4#00;0-$ $#*81$-6/" The ATP Cycle 30"<@. G<&5 )$#$%&’(15 I"Q"<@&0()R "0"<@.S<"’"$1(0@ +<&)"11"1J 30"<@. G&< )"’’>’$< -&<F I"0="<@&0()R "0"<@.S)&01>5(0@ +<&)"11"1J /N; /B; ; ( T 7 U
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ATP Doing Work Powering Reactions L’>#$5() $)(= /55&0($ L’>#$5(0" I%J 2&0C"<1(&0 <"$):&0 )&>+’"= -(#, /N; ,.=<&’.1(1 L’>#$5() $)(= )&0C"<1(&0 #& @’>#$5(0" I$J I)J V<""S"0"<@. ),$0@" G&< )&>+’"= <"$):&0 L’>#$5() $)(= L’>#$5(0" ;,&1+,&<.’$#"= (0#"<5"=($#" L’> WT 8 WT 7 L’> ! ! L’> X Y8EZ F)$’[5&’ /N; /B; /B; WT 8 L’> L’> ; ; ( ; ( /B; L’> WT 7 ! ! L’> X Y8EZ F)$’[5&’ L’> L’> WT 8 WT 7 /N; ! ! /N; X S\E8 F)$’[5&’ ! ! L’> X Y8EZ F)$’[5&’ Y ! ! /N; X S\E8 F)$’[5&’ W"# ! ! X S8E] F)$’[5&’ 6 7 Enzymes – Biological Catalysts /):C$:&0 "0"<@. 2 -)/;", /3 #"#$%& "#4#**-$& ,/ *,-$, ,5# $#-46/" 304.5"1 2 8$/,#1"* ?5145 -4, -* )$#$’.1#1 2 0/?#$ ,5# -46@-6/" #"#$%& /3 - $#-46/" D"@#*, )/"#& ,/ )-># )/"#& E/$ #"#$%&FG H,-$, I1"1*5 A46@-6/" !"#$%& With Enzyme Without Enzyme Activation Energy: a hill analogy Getting up off the couch…
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! G Remains Unchanged 2&><1" &G <"$):&0 -(#,&># "04.5" 3 / -(#,&># "04.5" 3 / -(#, "04.5" (1 ’&-"< 2&><1" &G <"$):&0 -(#, "04.5" 9"$)#$0#1 ;<&=>)#1 ! ! (1 >0$P")#"= %. "04.5" ;<&@<"11 &G #," <"$):&0 V<"""0"<@.
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Bio1_ch8-9post - Metabolic Pathways Chapter 8-9 !

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