Chap 2

Question 1

• Know the 3 subatomic particles of an atom and where they are located:

Answer 1

Protons:(+) subatomic particles → in the nucleus
Neutrons: neutral subatomic particles → in the nucleus
Electrons:(-) subatomic particles → in the outer shell

Question 2

• Know what makes a solution acidic or basic (the pH number and the ions):

Answer 2

Acidic solutions: have a greater concentration of H+ than OH-
pH less than 7
Basic solutions: have a greater concentration of OH- than H+
pH greater than 7

Question 3

• Know the building blocks (monomers) of the four main groups of organic/ biological macromolecules:

Answer 3

Carbohydrates: glucose/monosaccharide
Lipids: Fatty acids
Proteins: Amino acids
Nucleic acids: Nucleotides

Question 4

• Know the functions of each of the four main groups of organic/ biological macromolecules:

Answer 4

Carbohydrates: cell structure, adhesion, and metabolism
Lipids:
Triglycerides (simple lipids) – energy storage
Phospholipid (complex lipids) – major cell membrane component
Steroids/Membrane lipids – cell membrane component
Proteins: support, enzymes, transport, defense, movement
Nucleic Acid:
Dna - contains information that is essential for almost all cell activities, including cell division
Rna - stores and transfers information essential for the manufacturing of proteins