Biology of Women

When two atoms are bonded together by a covalent bond what do they share?

Electrons

One common type of bonding is called .........?

Covalent Bonding

Describe an atom?

-makes up all the physical matter in the universe.
-is made up of three "building blocks"
*Neutrons
*Protons
*Electrons

What are the four elements that are particularly important to living organisms.

1. Carbon
2. Nitrogen
3. Phosphorous
4. Oxygen

What is Neutrons?

-carry no charge
-Neutral

What is Electrons?

-Negatively charged and function in bonding atoms together

Neutrons, Protons, and Electrons are ..(fill in blank).... into the atom.

Organized

What is Protons?

-Positively charged

___1.____ and ____2.___ clump together in the middle. This clump is called the ___3___.

1. Neutrons
2. Protons
3. Nucleus

___1____ orbit around the nucleus and are involved in ___2____.

1. Electrons
2. Bonding

Bonding occurs when tow atoms stick together. One common type of bonding is called ___1______.

1. Convalent Bonding

When atoms stick together a _______ is formed.

1. Molecule

What is marcomolecules?

molecules that are very small, like a water molecule, or very large and complicated.

When macromolecules are placed into four general categories. What are the FOUR general categories?

1. Carbohyradrates (ex. sugars, starch)

2. Lipids (ex: fats, steroids)

3. Proteins (Ex: Muscle proteins actin and myocin)

4. Nucleic Acids (Ex: DNA, RNA)

Carbohydrates are commonly known as _____ and _____. They give us "quick" energy.

1. sugar
2. starches

Carbohyrdrates comes in all shpaes and sizes, but they are made up of just three types of atoms: 1___ , 2____, 3____.

1. carbon
2. hydrogen
3. Oxygen

The least complex carbohydrates are called _____ and includes molecules such as _____ and _______.

Simple Sugars
glucose
fructose

If many glucose molecules link together by covalent bonds, then a new carbohydrate, called ______, is formed.

Starch

Starch is just one of many _________.

Complex Sugars