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Diet crazes what does your body do with protein carbohydrates and fats

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Diet crazes what does your body do with protein carbohydrates and fats Powered By Docstoc
					America’s Diet Problem

Diets diets everywhere

Little is really known about diet

Diet and You

I cannot help you with diet

What are carbs, fats, proteins?

Carbon based life forms
C

H

H

C

H

H

Covalent Properties

Covalent Bonds

+

+

+

Ionic Bonds

Hydrogen Bonds

Complexity of Carbon
• Carbon forms chains
H H C H H C H C H H C C H C H H H C H C C H H H C H H C H H C H H

• Branches
H

H C H

• Rings

Why is structure important?

Sickle Celled Anemia

More than just structure

Flammable Gas

Drinking alcohol H H C H H C H O H H H C H H C H H

Building big molecules

Polymer

Monomer

4 types of important C molecules

Four Major Classes of Macromolecules

st 1

Group: Carbohydrates

Basic Structure

Glucose: C6H12O6

Starch

Glycogen

Cellulose

Chitin

Carbohydrates central to energy use and storage

2nd group: Lipids (fats)

Glycerides

Saturated vs. Unsaturated

Saturated vs. Unsaturated

Why the nutritional difference?

Use of glycerides as food

Comparison of carbohydrates and fat

Lipids continued - Steroids

Basic Structure

Note the four ring structure common to all steroids.

Phospholipids

Basic Structure

Membrane creation

rd 3

Group: Proteins

Basic Structure

Snapping into shape

Primary structure List of aminos Stretched out slinky

Secondary “coils of slinky”

Tertiary “Twisting the slinky”

Quaternary “Combining 2 or More slinkys”

What do you use Proteins for?

Undoing Protein Structure

Last but not least – Nucleotides

The Macromolecules

Carbohydrates

Proteins

Lipids

Nucleic Acids

Starch Glycogen Cellulose Chitin

Too many To list

Glycerides Steroids Phospholipids

DNA/RNA

So, what about diets?

Example w/ Atkins

Traditional diets never More than 35-40% protein

Fat and Protein

What does this mean about diets?

Some scientific studies

Data

What does this mean for you?


				
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