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
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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## This note was uploaded on 02/09/2012 for the course BIOLOGY E2A taught by Professor Anderson during the Spring '11 term at Harvard.

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Bio1_ch8-9post - Metabolic Pathways Chapter 8-9#\$...

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