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Flashcards in Unit Three - Chemistry of life Deck (11)
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1

The atomic number is equal to the number of what in an atom?

PROTONS

2

In an electrically neutral atom the # of protons is equal to the # of.....

ELECTRONS

3

Atoms react with one another to form WHAT in their outer shell

MOLECULE

4

Ionic bonds are typically found in what kind of compounds?

INORGANIC

5

In a covalent reaction...

Atoms share electrons

6

Three characteristics beneficial to life from hydrogen bonding in water

1. Causes water molecules to cling together
2. Water absorbs a great deal of heat before it evaporates and gives off this heat as it cools
3. Can distribute substances and heat throughout the body

7

Acids are molecules that release...

hydrogen ions

8

Enzymes

Speed up chemical reactions

9

Macromolecules vs. monomers

Nucleic Acid Nucleotide
Lipid Glycerol & fatty acid
Protein Amino acid
Carbohydrate Monosaccharide

10

pH 3 is a base. T/F

FALSE

11

OH- is called an hydroxide ion; T/F

TRUE