Chemistry of life

Onjane' Johnson and Sierra Prunes

Characteristics of water

Water characteristic:
Adhesion- Different particles that attach themselves to one another

Cohesion- Molecular attraction in which elements are bonded

Polarity- The dipole-dipole intermolecular forces between the two pole located at the north and south of the molecule, each positive and negative.

Heat storage- water has one of the highest thermal capacities Heat capacity

pH scale- used to measure acidic or basic a substance is.


Macromolecules: large molecules made up of smaller organic molecules.

there are four types of macromolecules:

carbohydrates,lipids, proteins, nucleic acids.

Carbohydrates: a large biological macromolecules that is made up of only carbon, hydrogen and oxygen.

Lipids- Any substances contains fat and oils,there job is to store energy (Saturated, unsaturated)

Carbohydrate- Any group of organic compounds

Three types of Carbohydrates

Monosaccharides- Table sugar, provides energy for red blood cells, brain and rest of the nervous system

Disaccharides- Sucrose, provides the body with energy for mental and physical needs

Polysaccharides- Starch, used as fuel for all cells


Proteins- Made of amino acids and the building materials for other living cells operates a majority

Nucleic Acid- Group of complex compounds in all living organisms and viruses, DNA, RNA and ATP, help transfer genetic information

Enzymes- A substance that causes a chemical reaction, speeds up the rate of chemical reactions (Metabolic, digestive and food)


Water - Liquid Awesome: Crash Course Biology #2
DNA Structure and Replication: Crash Course Biology #10
Biological Molecules - You Are What You Eat: Crash Course Biology #3