micro

List the 3 subatomic particles of an atom

Protons have a_______ charge and are located in the ________of an atom.

Neutrons carry no charge and are located in the _____ of an atom.

Electrons carry a _____ charge and are located ________ of the nucleus.

The number of electrons usually equals the number of

The first inner shell can contain _____to _____ electrons

The second shell can contain up to _____ electrons

The third shell can contain up to _____electrons.

Valence electrons are the number of ______ in an atom's outermost shell

the atomic number is the number of_______ an atom contains.

The atomic weight or mass is the number of ________an atom contains.

Isotopes contain the same number of protons, but different number of

If a atom has an atomic number of 12 and an atomic weight of 25, then the neutron number would be______

List several ways isotopes are important in medicine:

List the 4 most abundant elements in living organisms:

2 or more atoms joined together create a

Covalent Bonds form when 2 atoms ______a pair of electrons.

Ionic bonds occur by either ________or _______an electron (ions). Ionic bonds are held together by _____charges.

What type of bond does Sodium have?

Which of the following would be an incorrect association?
A. DNA/molecule
B. proton/positive
C. Phosphorus/atom
D. covalent/ions

Hydrogen bonds are ______but important to living things.

List 3 factors which determines a reaction rate:

Catalysts ___the rate of a chemical reaction by ____the amt of energy needed for a reaction. Ex: Enzymes.

Water is essential for ___and forms about ____of the weight of microorganisms.

List 7 reasons why water is important:

Most vital chemical reactions occur only in a _______environment.

Hydrophilic are those molecules that _______in water.

Hydrophobic are those molecules that _________in water

Write 1 example of a colloid that is used in microbiology

When a substance dissociates in water and forms additional hydrogen ions it forms an

When a substance dissociates in water and forms additional hydroxyl ions, the solution becomes a

Salts are compounds that dissociate in water but do not add

A pH of 5 is considered _______

a pH of 9 is considered

a pH of 7 is

Buffers help to maintain a stable

The best definition of an organic molecule is one that contains carbon (carbon dioxide is an exeption). All other molecules are called

Carbon atoms form______covalent bonds with other atoms

By dehydration synthesis water is ______and a chemical bond is formed

The addition of water to break a polymer into pnomers is called

List the 4 main classes of organic macromolecules:

The most abundant macromolecules in cells are _____

Denaturation changes the _____(structure) of the protein destroying its biological activity.

list 3 examples that would cause denaturation

List 2 tpes of nucleic acid

DNA encodes a cell's _______info

RNA is critical in builiding

Monosaccarides are

Disaccaharides consist of _____monosaccharides

Cellulose occurs mainly in _______of plants and algae.

Lipids are nonpolar molecules that are insoluble in ____but soluble in nonpalar solvents such as gasoline or kerosene.

Phospholipids have a glycerol backbone with ______fatty acids.

Fatty acid tails are _____and insoluble in water

the phosphate head is _____ and soluble in water

Phospholipids are an essetial component of membranes in plants, animals, and