aim: what are the four organic compounds essential to living things and why are they important in...
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Lipids are hydrophobic What does that mean? Water Fearing Hydro phobicTRANSCRIPT
AIM: What are the four organic compounds essential to living things and why are they important in our body?
DN: What are the building blocks of a carbohydrate?
Explain the difference between a monosaccharide, disaccharide and a polysaccharide.
Explain what a monomer and a polymer is. Give an example of each.
HW: Quiz- Wednesday- Organic vs. inorganic, carbohydrates, lipids, nucleic acids, proteins
Lipids are hydrophobicWhat does that mean?
Water Fearing
Hydro phobic
What are lipids used for in our bodies?
Major componentof cell membranes
Important energysource
What are lipids made up of?
1 Glycerol molecule and 3 Fatty Acid chains
What organic molecule does this cat have too much of?
LIPIDS
What is another group of organic compounds?
Nucleic Acids
DNA & RNA are Two Kinds ofNucleic Acids
The building blockof nucleic acids are:
Nucleotides
What is a nucleotide made of?
Nucleic Acids
DNA orRNA
Nucleotides
PhosphateSugarBase
What is DNA responsible for?
Our characteristics or traits
What is another category of organic molecules?
Proteins
Proteins have many functions:
•Enzymes•Found in cell membrane•Antibodies•Hormones (insulin)
What are proteins made up of?
Proteins are made up of polymers of
amino acids
How do we build proteins?•Polymers of amino acids•Each amino acid is held together by a peptide bond•They come together by dehydration synthesis
DehydrationSynthesis
What are Polypeptides?
Polypeptides are chains of amino acids
Proteins are long chains of polypeptides
How many amino acids are there?There are only 20 amino acids, but there are millions of different types of proteins.
How does that happen?
Protein Shape:1)The sequence (order) of amino acids in a
protein determine its shape
2) The shape of a protein determines its function
What does Denaturation mean?An unfavorable change in temperature, pH, or some other quality of the environment can cause a protein to unravel and lose its normal shape
Denatured proteins do not function properly!
Remember: SHAPE DETERMINES FUNCTION!!!!
What are proteins?• Polymers of amino acids• Examples:
enzymeshormoneshemoglobin
What are the 4 Organic Molecules:
Carbohydrates Lipids
Nucleic Acids
Proteins
What are the monomers of carbohydrates called?
Monosaccharides or
Simple Sugars
What are the polymers of carbohydrates called?
Polysaccharides
What is the reaction called that produces polysaccharides?
DehydrationSynthesis
What are the monomers of lipids?
Glycerol and 3 fatty acid chains
What are the monomers of proteins?
Amino acids