Download Policy: Content on the Website is provided to you AS IS for your information and personal use only and may not be sold or licensed nor shared on other sites. SlideServe reserves the right to change this policy at anytime.While downloading, If for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Chapter 3 Biochemistry
Organic Molecules- The Building Blocks of Life
It forms4 covalent bonds
A good site for more explanation:
- A specific group of atoms that gives a known type of behavior to molecules
– changes the characteristics of the compound-
(See page 52 in your textbook for more on functional groups)
Hydrocarbons - C and H only
Alcohols - OH
Acids - COOH
Amines - NH2
Example - adding an amino group
- makes methane or ethane into- an amine
1. Monomers-small simple molecules
2. Polymers-big molecules formed when monomers bonded to each other
(an H from 1 end and an OH from the other
end are cut loose when the monomers join.)
Blue = ribose (a 5-carbon sugar)Green = adenine (a nitrogenous base)
Yellow = phosphate groups
Energy is stored in bonds joining thephosphate groups
Energy is stored in ATP (ADP + P)
Energy is used as needed & ATP is
converted back to ADP + phosphate.
(polymers) three to millions of subunits.
the most important energy source for cells
Monomers & Polymers
- single sugar unitsglucose
- twomonosaccharides. Lactose, maltose
- linking many sugar units together
Examples: starch, glycogen, cellulose
What does it mean to be
the molecule into its two
subunits for absorption.
the production of lactase gradually
ceases with maturity, & they are
then unable to metabolize lactose…
becoming “Lactose intolerant”
Lots of monomers linked together
building block of proteins
*Amino acids are linked together by joining the amino end of one molecule to the carboxyl end of another. *Removal of water (condensation reaction) links amino acids with a peptide bond.
-Generally insoluble in polar substances (water)
(not water soluble).
replaced with a
*The water loving edge of the molecule orients toward water- the inside and outside of the cell.
*The water fearing edges of the molecule orient toward each other to make a lipid “bilayer”
- the construction of the cell membrane.