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Lecture 5

BIOL 1115 Lecture 5: Biology 1115 - Biochemistry of Life

7 Pages
68 Views

Department
Biology
Course Code
BIOL 1115
Professor
Kenneth Nauman

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THE BIOCHEMISTRY OF LIFE
ORGANIC MOLECULES : carbon containing molecules H
1
>
Cmakes 4covalent bonds H-C-OH
1
>
c=o
makes up living things I
H-C-OH
>can be big -have
'
C-backbone
'
Carrying functional group
mmmm mm 1
>H
hydrocarbons -simplest organic molecules (only c3H)
.
ex .gasoline
-
Non -polar bonds hydrophobic don't dissolve
>functional groups
-
combination of atoms -MOST Commonly involved in
chemical rxns (polar soluble )
ORGANIC MACROMOLECULES
>
polymers -
big molecules made of many repeating units (monomers )
-
~50 monomers
-
dehydration synthesis joins 2monomers
-
hydrolysis separates them
,
1
FUNCTIONAL GROUPS
1
Hydroxyl 1alcohol )group
4
phosphate group
C
1-
C-OH
°weak acid
"
1
C
-0-P-
OH
:H
@
carboxyl (acid )
ff
"
°
-C0
ydissociate
\"
OH -0
-p
-0
-Ht
\\ 1Ht
00
-
11
-C
\
o
-
3
amino *acts as a5ketone
Hweak base 0
\
in mid molecule
/''
-N/-c-c-c-
\u
H
Ht
§\µaldehyde at one end
,
H
-N-H+
\
-c-c-C-c
H\H

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Description
THE BIOCHEMISTRY OF LIFE : ORGANIC MOLECULES carbon molecules H containing 1 > C makes 4 covalent bonds H C OH 1 > makes up living things I cCo OH > H can be big have C backbone Carrying functional group mmmm mm 1 > H hydrocarbons simplest organic molecules ( only c 3 H ) . ex . gasoline Non bonds dont dissolve polar hydrophobic > of MOST functional groups combination atoms Commonly involved in chemical rxns ( polar soluble ) ORGANIC MACROMOLECULES > molecules made of monomers polymers big many repeating units ( ) ~ 50 monomers dehydration synthesis joins 2 monomers hydrolysis separates them , 1
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