Chemistry of Life

Element
a substance made up of electrons neutrons and protons
Atom

the Smallest unit of matter that cannot be broken down chemically

Lewis Dot Diagram
Number of electrons in outer shell of an element lone pairs and single dots
Monosacchrides
Simple Sugars Ex: Glucose, Fructose, Glactose
Disaccrides
2 simple sugars Ex: Sucrose, Lactose, Maltose
Polysaccrides
complex Carbohydrates. Ex: Glycogen, Startch, Diatary fibers
1 g Carb= ? Kcal
1g Fat= ? Kcal
1g Protien= ? Kcal
4
9
4
ATP
High energy compound formed from energy in food
Ionic Bonds
Give and take electrons Ex:NaCl (table Salt)
Covalent Bonds
Share Electrons. Ex: H2O

pH Levels

0-6 – Acidic
7- Nuetral
8-14 – Basic
x

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