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Macromolecules Structure & Function.

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Presentation on theme: "Macromolecules Structure & Function."— Presentation transcript:

1 Macromolecules Structure & Function

2 You Are What You Eat Total %Daily Value Calories 1280 Total Fat (g) 59
91 Saturated Fat (g) 16 79 Cholesterol (mg) 85 28 Sodium (mg) 1420 Carbohydrates (g) 158 53 Dietary Fiber (g) 11 42 Protein (g) 33 - Big Mac Meal

3 Carbohydrates C : 2H : O Examples Monosaccharides (one sugar)
carbo hydrate (water) Examples Glucose C6H12O6 Fructose C6H12O6 Isomers Monosaccharides (one sugar) Fuel Sweet!

4 Carbohydrates Disaccharides (two sugars) Examples Sucrose
Dehydration synthesis Coca-Cola Classic® Carbonated water, high fructose corn syrup and/or sucrose, caramel color, phosphoric acid, natural flavors (vegetable source), caffeine.

5 Carbohydrates Polysaccharides (many sugars) Fuel Storage
Up to thousands of units Fuel Storage Starch- Plants Starch & Glycogen Glycogen- Animals

6 Carbohydrates Polysaccharides (many sugars) Structural
Up to thousands of units Structural Starch & Glycogen Cellulose Hard to digest! Total %Daily Value Calories 1280 Carbohydrates (g) 158 53 Dietary Fiber (g) 11 42

7 Carbohydrates Polysaccharides (many sugars) Structural
Up to thousands of units Structural Starch & Glycogen Cellulose Chitin

8 Carbohydrate Structures
disaccharide monosaccharide polysaccharide

9 Lipids Hydrophobic Examples Oil & water do not mix! Less O Fatty acid
Total %Daily Value Calories 1280 Total Fat (g) 59 91 Saturated Fat (g) 16 79 Cholesterol (mg) 85 28 Sodium (mg) 1420 Carbohydrates (g) 158 53 Dietary Fiber (g) 11 42 Protein (g) 33 - Examples Fatty acid Triglyceride Saturated Unsaturated

10 Lipids Large French Fries
Potatoes, partially hydrogenated soybean oil, natural flavor (beef source), dextrose, sodium acid pyrophosphate (to preserve natural color). Cooked in partially hydrogenated vegetable oils (may contain partially hydrogenated soybean oil and/or partially hydrogenated corn oil and/or partially hydrogenated canola oil and/or cottonseed oil and/or sunflower oil and/or corn oil).

11 Lipids Energy Storage! Insulation Waterproofing Membrane Steroids
1 g of carbohydrate  4 calories 1 g of fat  9 calories Fuel of choice for flying insects Insulation Waterproofing Membrane Phospholipid Steroids Cholesterol Hormones

12 Fatty acid Phospholipid Triglyceride Steroid

13 Fatty acid

14 Proteins Workers of the cell Amino acids
Responsible for most of what cells do Diverse! Amino acids Building blocks Dehydration synthesis Polypeptide Total %Daily Value Calories 1280 Total Fat (g) 59 91 Saturated Fat (g) 16 79 Cholesterol (mg) 85 28 Sodium (mg) 1420 Carbohydrates (g) 158 53 Dietary Fiber (g) 11 42 Protein (g) 33 -

15

16 Protein Structure Primary- amino acid sequence Secondary Tertiary
Regular folding  helix  pleated sheet Hydrogen bonding between O----+H-N on the polypeptide backbone Tertiary Folding Interactions between the side groups

17 Tertiary Structure Hydrophobic interaction Hydrogen bonds Disulfide
bridge Ionic bonds

18 Protein Structure Quaternary More than one polypeptide
More than one gene!

19 Protein Function Structural support Collagen, silk, keratin

20 Transport

21 Hormones Insulin

22 Receptors

23 Defense Antibody

24 Enzymes A protein that does a special job Thousands in the body
Catalyze reactions Reusable

25 ATPase

26 Nucleic Acid DNA & RNA (mRNA, tRNA, rRNA, & more)
Store information for making protein Genes – sequence that codes for a protein Four nucleotide bases: Adenine, Thymine, Guanine, Cytosine

27 Nucleotide Nitrogen Base Phosphate Sugar

28 Polynucleotide Hydrogen Bonds

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