Chemistry of Life

Maryssa Oliveras

Chemistry of Life

Maryssa Oliveras

Water and its Characteristics

Heat storage: Water that heats more slowly and retains heat for a long time

Ionic boding: Transferred electrons

Covalent bonding: Shared electrons

Hydrogen bonding: Bonding between polar molecules

Hydrogen: Weak bond formed between the charged areas of water molecules

The Ph number of water is 7

Adhesion

The water is attracted to the spider web, this is because it is the different kind of substance.

Adhesion vs Cohesion

Adhesion; Same substance

Cohesion: Difference substance

Hydrogen Bonding

The hydrogen bond is the attraction of positive and negative molecules

Adhesion

The water is attracted to the spider web, this is because it is the different kind of substance.

Adhesion vs Cohesion

Adhesion; Same substance

Cohesion: Difference substance

Hydrogen Bonding

The hydrogen bond is the attraction of positive and negative molecules

Macromolecules

What are they?

Macromolecules are molecules that contains a very large number of atoms

Marcomolecules are easier to see then micromolecules

They also can contain synthetic polymer or nucleic acids

There are four different kind of macromolecules:

Lipids, fatty acids, energy source and protiens

The protiens in macromolecules are chains (called Polymers) of amino acids folded into blobs with special shapes

Examples of protiens are Collagen, Hybogloben, and Cariten

The protien Hemogloben also carries oxygen

Carbohydrates

Carbohydrates are any large number or organic compounds in foods including sugar, starch and cellulose

Carbohydrates contain hydrogen and oxygen

They are broken down to release energy

Monosaccharide: A kind of sugar that can not be broken down

Polysaccharide: A sugar with many other bonded sugars in the molecules

Disaccharides: A sugar that contains two monosaccharides

Glucose is an example of monosaccharide

Cellulose is a common organic molecule

Protiens

Proteins are nitrogenous organic compounds that that have macromolecules (and contain carbon). They can make long chains of amino acids and are important to living organisms.

Proteins carry oxygen, build tissue, and copies DNA for offspring

Each cell has many different proteins

They produce enzymes

Proteins are also known as molecules

A protein molecule depends on its interaction with other molecules.

There are 8 Types of Protiens

Hormonal: These proteins are transported through the blood, that are like chemical messengers that take signals from one cell to another. Each hormone affects certain cells in your body,(target cells). An example of a hormonal protein is insulin.