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Transcript of 1 Macromolecules. 2 Topic/Do Topic: Macromolecule Do: Take down Cornell Notes. Write a 2 paragraph...
![Page 1: 1 Macromolecules. 2 Topic/Do Topic: Macromolecule Do: Take down Cornell Notes. Write a 2 paragraph summary (10 sentences) of your understanding of the.](https://reader036.fdocuments.in/reader036/viewer/2022062307/5514db4a55034693478b54ac/html5/thumbnails/1.jpg)
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MacromolecMacromoleculesules
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Topic/Do
Topic: Macromolecule
Do: Take down Cornell Notes. Write a 2 paragraph summary (10 sentences) of your understanding of the lesson.
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Look Up! You’ll Never Know What You’ll Learn
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Organic Organic CompoundsCompounds
• CompoundsCompounds that contain CARBONCARBON are called organicorganic.
• MacromoleculesMacromolecules are large organic moleculesorganic molecules.
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Carbon (C)Carbon (C)• CarbonCarbon has 4 electrons4 electrons in
outer shell.
• CarbonCarbon can form covalent covalent bondsbonds with as many as 4 4 other atoms (elements).
• Usually with C, H, O or NC, H, O or N.
• Example:Example: CHCH44(methane)(methane)
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MacromoleculesMacromolecules
• Large organic molecules.Large organic molecules.• Also called POLYMERSPOLYMERS.• Made up of smaller units, “building
blocks” called MONOMERSMONOMERS.• Examples:Examples:
1. Carbohydrates1. Carbohydrates2. Lipids2. Lipids3. Proteins3. Proteins4. Nucleic acids (DNA and RNA)4. Nucleic acids (DNA and RNA)
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CarbohydratCarbohydrateses
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CarbohydratesCarbohydrates
• Small sugar moleculesSmall sugar molecules to large sugar moleculeslarge sugar molecules.
• Examples:Examples:A.A. monosaccharidemonosaccharideB.B. disaccharidedisaccharideC.C. polysaccharidepolysaccharide
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CarbohydratesCarbohydratesMonosaccharide: Monosaccharide:
one sugar unitone sugar unit
Examples:Examples:• glucose glucose
((C6H12O6)
• deoxyribosedeoxyribose• riboseribose• FructoseFructose• GalactoseGalactose
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CarbohydratesCarbohydratesDisaccharide: two sugar unitDisaccharide: two sugar unit
Examples: Examples: – Sucrose (glucose+fructose)Sucrose (glucose+fructose)– Lactose (glucose+galactose)Lactose (glucose+galactose)– Maltose (glucose+glucose)Maltose (glucose+glucose)
glucoseglucoseglucoseglucose
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CarbohydratesCarbohydratesPolysaccharide: many sugar unitsPolysaccharide: many sugar units
Examples:Examples: starch (bread, starch (bread, potatoes)potatoes)
glycogen (beef muscle)glycogen (beef muscle)
cellulose (lettuce, corn)cellulose (lettuce, corn)glucoseglucoseglucoseglucose
glucoseglucoseglucoseglucose
glucoseglucoseglucoseglucose
glucoseglucoseglucoseglucose
cellulosecellulose
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LipidsLipids
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LipidsLipids• General term for compounds which are not soluble not soluble
in waterin water.• Lipids are soluble in hydrophobic solventsare soluble in hydrophobic solvents.• Hydrophilic – water-loving• Hydrophobic – water-fearing• Remember:Remember: “stores the most energy”“stores the most energy”• Examples:Examples: 1. Fats1. Fats
2. Phospholipids2. Phospholipids3. Oils3. Oils4. Waxes4. Waxes5. Steroid hormones5. Steroid hormones6. Triglycerides6. Triglycerides
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LipidsLipidsSix functions of lipids:Six functions of lipids:
1.1. Long term Long term energy storageenergy storage2.2. Protection against heat loss Protection against heat loss (insulation)(insulation)3.3. Protection against physical shockProtection against physical shock4.4. Protection against water lossProtection against water loss5.5. Chemical messengers (hormones)Chemical messengers (hormones)6.6. Major component of membranes Major component of membranes
(phospholipids)(phospholipids)
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LipidsLipidsTriglycerides:Triglycerides:
ccomposed of 1 glycerol1 glycerol and 3 3 fatty acidsfatty acids. (Looks like a letter
“E”) H
H-C----O
H-C----O
H-C----O
H
glycerol
O
C-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH3
=
fatty acids
O
C-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH3
=
O
C-CH2-CH2-CH2-CH =CH-CH2 -CH
2 -CH2 -CH
2 -CH3
=
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Fatty AcidsFatty AcidsThere are two kinds of fatty acidsfatty acids you may see these on
food labels:
1.1. Saturated fatty acids:Saturated fatty acids: no double bonds (bad) no double bonds (bad)
2.2. Unsaturated fatty acids:Unsaturated fatty acids: double bonds (good) double bonds (good)O
C-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH3
=
saturatedsaturated
O
C-CH2-CH2-CH2-CH=CH-CH2 -CH
2 -CH2 -CH
2 -CH3
=
unsaturated
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ProteinsProteins
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Proteins (PolypeptidesProteins (Polypeptides))• Amino acids (20 different kinds of aa)
bonded together by peptide bondspeptide bonds (polypeptidespolypeptides).
• Six functions of proteins:Six functions of proteins:1.1. Storage:Storage: albumin (egg white)albumin (egg white)2.2. Transport: Transport: hemoglobinhemoglobin3.3. Regulatory:Regulatory: hormoneshormones4.4. Movement:Movement: musclesmuscles5.5. Structural:Structural: membranes, hair, nailsmembranes, hair, nails6.6. Enzymes:Enzymes: cellular reactionscellular reactions
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Primary StructureAmino acids bonded together by
peptide bonds (straight chains) – peptide bonds (straight chains) – DRAW the structure belowDRAW the structure below..
aa1
aa2 aa3 aa4 aa5 aa6
Peptide Bonds
Amino Acids (aa)
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Nucleic AcidsNucleic Acids
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Nucleic acidsNucleic acids• Two types:Two types:
a. Deoxyribonucleic acid a. Deoxyribonucleic acid (DNA-(DNA- double helix) double helix) b. Ribonucleic acid (RNA-single b. Ribonucleic acid (RNA-single strand) strand)
• Nucleic acids Nucleic acids are composed of long chains of nucleotidesnucleotides linked by dehydration synthesisdehydration synthesis.
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Nucleic acidsNucleic acids
• Nucleotides include:Nucleotides include:phosphate groupphosphate grouppentose sugar (5-carbon)pentose sugar (5-carbon)nitrogenous bases:nitrogenous bases:
adenine (A)adenine (A)thymine (T) DNA onlythymine (T) DNA onlyuracil (U) RNA onlyuracil (U) RNA onlycytosine (C)cytosine (C)guanine (G)guanine (G)
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Nucleotide – DRAW the Nucleotide – DRAW the structure belowstructure below..
OO=P-O O
PhosphatePhosphate GroupGroup
NNitrogenous baseNitrogenous base (A, G, C, or T)(A, G, C, or T)
CH2
O
C1C4
C3 C2
5
SugarSugar(deoxyribose)(deoxyribose)
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DNA - double helixDNA - double helix
P
P
P
O
O
O
1
23
4
5
5
3
3
5
P
P
PO
O
O
1
2 3
4
5
5
3
5
3
G C
T A
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RNA – Ribonucleic Acid
•helps the DNA in protein synthesis.
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The End
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