Transcript Powerpoints

Bell Ringer
 Which
elements are present in
carbohydrates?
ORGANIC
COMPOUNDS
Organic Compounds
Organic Compounds: Compounds that contain
carbon and make up living organisms
Carbon is the backbone of life!!!
Organic Compounds
• It used to be thought that only
living things could synthesize the
complicated carbon compounds
found in cells
• German chemists in the 1800’s
learned how to do this in the lab,
showing that “organic”
compounds can be created by
non-organic means.
• Today, organic compounds are
those that contain carbon. (with a
few exceptions such as carbon
dioxide and diamonds)
CARBON
Why is carbon the backbone of life? Why is it
special?
1. Carbon has 4 electrons in its outer shell.
To satisfy the octet rule, it needs to share
4 other electrons.
2. This means that each carbon atom forms
4 bonds
Three Types Of Carbon Molecules
1. Straight Chain:
2. Ring:
3. Branched Chain:
Macromolecule
Large molecules that make up living things. They are
large chains of smaller molecules. It means “giant
molecule”.
Monomers
All macro organic molecules are made up of
smaller subunits called monomers. This is just
the base unit that repeats over and again. The
monomers can be identical or different.
Polymers
Organic macromolecules are made up of
repeating monomers.These chains of monomers
are called polymers.
Four Basic Types of Organic
Molecule
• Most organic molecules in the cell are:
carbohydrates (sugars and starches), lipids
(fats), proteins, and nucleic acids (DNA and
RNA).
• These molecules are usually in the form of
polymers, long chains of similar subunits.
Because they are large, these molecules are
called macromolecules. The subunits are called
monomers.
• The cell also contains water, inorganic salts and
ions, and other small organic molecules.
4 Groups of Organic Compounds
1.
2.
3.
4.
Carbohydrates
Proteins
Lipids
Nucleic Acids
Carbohydrates
*Carbohydrates are composed of C, H, and O.
*Ratio: 1C:2H:1O
*Function:
1. Main source of energy.
2. Plants and some animals use it for
structural purposes.
Carbohydrates
Carbohydrates are made up of monomers called
monosaccharides.
Examples of monosaccrharides:
1.glucose: plant produce during photosynthesis
2.Galactose: found in milk and diary
3.Fructose: sugar in many fruits
GLUCOSE!
Fructose
Carbohydrates
Two monomers of monosaccharides together are
called disaccharides. Sucrose is a examples of a
disaccharide.
MALTOSE
Carbohydrates
A polysaccharide is a long chain of monosacchrides
Joined together.
Examples of polysacchrides:
1.glycogen:stored energy
2.Starch: plant stored energy
3.Cellulose: cell walls
STARCH!!!
Look at the difference between these two. Think about how
Plants use cellulose and animals use starch. They are shaped
this way because of their use. Cellulose – straight chains Starch
Branched.
Lipids
DEFINE: Large groups of organic compounds
not soluble in water.
Mostly made up of C and H with very little O.
Functions:
1.Store energy for long term.
2.Waterproof covering
4 main categories of Lipids
1.
2.
3.
4.
Fats
Oils
Waxes
steroids
FAT!!!
Lipids
Monomer:
FATTY ACID
Polymer: TRIGLYCERIDE
Structure of a lipid:
Glyercol molecule combines with fatty acids. The
Different fatty acids determine the type of lipid.
Lipids
Lipids are made up of carbon, hydrogen, and
oxygen and very little nitrogen.
Lipids
All lipids are not soluble in water. That is why
they are placed together.
Lipids
Saturated vs. Unsaturated
Saturated means that all the carbon bonds are taken.
They are solid at room temperature and bad for you.
Unsaturated means that there is at least one double
bond with the carbon. They are liquid at room temp.
and are better for you.
Which ones are
Saturated??
Proteins
Any of a large group of nitrogen containing organic
compounds that are essential part cells; consist of
polymers of amino acids; essential in the diet of
animals for growth and for repair of tissues; can be
obtained from meat and eggs and milk and legumes;
"a diet high in protein.”
Proteins
Macromolecules that contain N, C, O and H.
Functions:
1.Rate of cell processes.
2.Cellular structures
3.Controls substances in and out of cell.
4.Fight disease.
1.
2.
3.
4.
Examples of Proteins
Hemoglobin in blood
Collagen
Enzymes
insulin
Proteins and Amino acid formation
Proteins are made up of monomers of amino
acids help together by peptide bonds.
3 parts of an amino acid:
1.Amino group
2.Carboxyl group
3.R group
Proteins(examples of R-Groups)
There are 20 different amino acids found in
nature.Different proteins are determined by the
type of amino acids connected together. All
amino acids are the same except for the R-group.
The R-group gives the amino acids different
properties.
R – Group
The R – Group(functional group)
Functional Groups
• Most of the useful behavior of organic
compounds comes from functional groups
attached to the carbons. A functional group is a
special cluster of atoms that performs a useful
function.
Proteins(structure)
Long chains of amino acids are connected
by peptide bonds which are called polypeptides.
Nucleic acid
Any of various macromolecules composed of
nucleotide chains that are vital constituents
of all living cells.
Nucleic acids
Macromolecules containing H, N, C, O and P.
Made up of monomers of nucleotides.
Nucleotides
3 parts of a nucleotide
1.Phosphate
2.Deoxyribose sugar
3.Nitrogen base
Function of a Nucleic Acids
1. Carry genetic material
2. Carries codes to make proteins
2 Examples of Nucleic Acids
1. RNA – ribonucleic acids
2. DNA – deoxyribonucleic acid
Function of DNA
1. Carry codes to make proteins.
2. Carry genetics code(genes).
Function of RNA
Function of RNA is to make proteins
from the code DNA carries.
1.