Anatomy & Physiology

Ch 2 Basic Chemistry

What are the parts of atoms including charges? Nucleus

Protons Positive

Neutrons Neutral

Electron Cloud Electrons

Negative

What role do oxygen, calcium, and magnesium have in the body. Oxygen

Most abundant element in body, cellular respiration

Calcium In bones and teeth

Magnesium In bones and involved in enzyme activity

Compare and contrast ionic and covalent bonding. Ionic

Transferring of electrons Covalent

Sharing of electrons Both are types of chemical bonds

An atom with 11 protons and 12 neutrons is an…? Isotope

What is the difference between a molecule and a compound? Molecule: two or more of the same kind of

atoms combined. Compound: two or more different kinds of

atoms combined.

What are the four types of organic compounds? Carbohydrates Lipids Proteins Nucleic Acids

What are the matching base pairs in DNA? Adenine - Thymine (AT&T) Cytosine - Guanine (Cingular)