Chapter 2

Question 1

Define Ion

Answer 1

atom that gains OR loses electrons to become stable

Question 2

Define Cation

Answer 2

Positively charged ion (Na+)

Formed when atom loses electrons

Question 3

Define Anion

Answer 3

Negatively charged ion (Cl-)

Formed when atom gains electrons

Question 4

Salts are formed by?

Answer 4

Reaction between acid and base

Question 5

Neutral pH on scale is?

Answer 5

7, equal concentrations

Question 6

Basic or alkaline on pH scale?

Answer 6

pH greater than 7

Higher concentration of OH-

Question 7

Acidic on pH scale?

Answer 7

pH less than 7, greater concentration of H+

Question 8

pH of blood?

Answer 8

7.4
no higher than 7.7
no lower than 7.1

Question 9

What are triglycerides?

Answer 9

1 glycerol and 3 fatty acids

Question 10

Saturated fats are?

Answer 10

Contain only single carbon bonds

Solid and are from animals (butter, meat fat)

Question 11

Unsaturated fats are?

Answer 11

Contains 1 (MONO) bond
Contains more (POLY) double bonds
Polyunsaturated- (omega 3/6) last double bond 3 or 6 from the end

Question 12

Phospholipids

Answer 12

1 glycerol, 2 fatty acids, 1 phosphate
hydrophilic and hydrophobic ends
major component of cell membranes

Question 13

What do nucleic acids do?

Answer 13

carry genetic info

encode amino acid sequences of proteins

Question 14

DNA

Answer 14

double strand polynucleiotides

Question 15

RNA

Answer 15

single strand

Question 16

G,C,A,T

Answer 16

Guanine
Cytosine
Adenine
Thymine