Biochemistry Organic Molecules. Target #20- I can differentiate between inorganic and organic...
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Transcript of Biochemistry Organic Molecules. Target #20- I can differentiate between inorganic and organic...
![Page 1: Biochemistry Organic Molecules. Target #20- I can differentiate between inorganic and organic molecules Inorganic molecules constitutes non- living.](https://reader036.fdocuments.in/reader036/viewer/2022062421/56649d0a5503460f949dc811/html5/thumbnails/1.jpg)
Biochemistry
Organic Molecules
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Target #20- I can differentiate between inorganic and organic molecules Inorganic molecules constitutes non- living
matter that play important roles in living things Ex: NaCl
Organic molecules constitutes living matter Always contains carbon and hydrogen Accounts for the formation of a variety of organic
molecules Macromolecules
Known as the “molecules of life” Made most of elements like carbon and hydrogen
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Monomer: a simple organic molecule that exists individually A basic unit of a
macromolecule Polymer: many
monomers linked together Linked through a
dehydration reaction Removal of a water
molecule
Target #21- I can differentiate between a monomer and a polymer
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Each macromolecule has a corresponding monomer and polymer Types of
macromolecules Proteins lipids Carbohydrates Nucleic acids
Target #22- I can list the 4 macromolecules
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Target #23- I can describe the function of a carbohydrate Carbohydrates
Function for quick fuel and short-term energy storage
Play a structural role in woody plants, bacteria, and animals like insects
Are involved in cell-to-cell recognition Characterized by the presence of the atomic
grouping H-C-OH
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The monomer of carbohydrates is a monosaccharide Ex: glucose
Glucose is used as an immediate source of energy in both plants and animals
Ex: fructose Found in fruits
Disaccharide: contains two monosaccharides that have joined together Ex: sucrose & lactose
The polymer of a carbohydrate is a polysaccharide
Target #24- I can identify the monomer and polymer of carbohydrates
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Target #25- I can identify the 3 polysaccharide molecules of carbohydrates
Starch is a storage molecule in plants
Glycogen is a storage molecule in animals Found in the liver
Cellulose is found in plant cell walls Makes plants hard to
digest
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Biochemistry
Proteins
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Target #26- I can describe the function of a protein Perform many functions
Provides support structures Keratin hair and nails Collagen ligaments, tendons, and skin
Controls metabolism Some proteins are enzymes
Enzymes speed chemical reactions Hormone production
Muscle function Transportation of molecules in the blood Cellular transport of molecules
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The monomer of a protein is an amino acid
The polymer of a protein is a polypeptide Made up of 2 or more
amino acids Amino acids are bonded
via a polypeptide bond Occurs between the
oxygen, carbon, nitrogen, and hydrogen atoms
Polypeptides vary in shape depending on the composition
Target #27- I can identify the monomer & polymer of a protein
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The shape of a protein is important to its function When proteins are
exposed to extremes in heat and pH, they denature An irreversible change
in shape Ex: heating an egg white
cases it to coagulate Occurs because the
normal bonding between the polypeptides has been disturbed
Once a protein loses it’s shape, it can no longer perform its function
Target #28- I can explain why the shape of a protein is important to its function
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Bellwork
In what foods or organisms do we find lipids?
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Biochemistry
Lipids
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Target #29- I can describe the function a lipidFats and oils function as energy storage
moleculesPhospholipids form a membrane around
the cellBasis for steroids, like estrogen and
testosteroneDiverse in structure and function
Common characteristic do not dissolve in waterAka: hydrophobic
Do not have a monomer or a polymer
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Target #30- I can describe the structure and function of fats & oils
Fats & Oils Most familiar lipids Fats are solid at room
temperature Lard & butter
Oils are liquid at room temperature Corn oil & soybean oil
Function Long-term energy
storage Insulates against heat
loss Forms a protective
cushion around major organs
Structure Made of a glycerol & 3
fatty acid chains Called triglycerides
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Target #31- I can differentiate between saturated and unsaturated fatty acids
Fatty acid A hydrocarbon chain that
ends with the acidic group COOH
Either saturated or unsaturated Saturated fatty acids have
no double covalent bonds between carbon atoms The carbon chain is
saturated with all the hydrogens it can hold
Account for the solid nature of fats, like butter, at room temperature
Unsaturated fatty acids have double bonds between carbon atoms wherever the number of hydrogens is less than two per carbon atom Accounts for the liquid
nature of vegetable oils at room temperature
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Phospholipids Lipids that contain a
phosphate group The polar phosphate
bonds to two fatty acid groups The phosphate group is
polar Hydrophilic
Fatty acid tails are non-polar Hydrophobic
Primary components of cellular membranes Form a bilayer where
the heads are on the outside, and the tails are on the inside
Target #32- I can explain the structure of a phospholipid
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Nucleic Acids
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Target #33- I can describe the monomer of a nucleic acid The monomer of a Nucleic Acid is a
nucleotide Nucleotides consist of a phosphate, a
pentose sugar, and a nitrogen-containing base
Five nitrogen containing bases adenine Guaninie Thymine Cytosine Uracil
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The polymer of a nucleic acid is DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) DNA is made of the
monomers adenine, guanine, cytosine, and thymine
RNA is made of the monomers adenine, guanine, cytosine, and uracil
Target #34- I can identify the polymers of nucleic acids
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Target #35- I can explain how nucleotides form a polymer
The nucleotides form a linear molecule called a strand Alternating phosphates and
sugars create a back bone In DNA, two strands twist
together to form a double helix Held together by hydrogen
bonds The bases bond together to
make “rungs” like in a ladder In RNA, a single strand forms
Used to complement DNA