BIO160 Unit 2 Quiz

Question 1

10 / 10 pts

Within the cell membrane (made up of phospholipids), the polar phosphate groups face both the inside and the outside of the cell, as they are deemed hydrophilic.

True

False

Question 2

10 / 10 pts

Organic molecules must contain:

Carbon

Hydrogen

Nitrogen

Oxygen

DNA

Protein

Question 3

10 / 10 pts

Select all of the following that are properties of water:

Water is a solvent

High specific heat capacity

Water is a solute

Cohesive

Low heat of vaporization

Adhesive

Question 4

10 / 10 pts

Cholesterol is the precursor of several other steroids including:

Testosterone

Estrogen

Cortisol

All of the above

Question 5

10 / 10 pts

The water molecule is “bent” because of unequal sharing of electrons.

True

False

Question 6

10 / 10 pts

The process of ATP converted into ADP + P is an example of:

Hydrolysis

Dehydration synthesis

pH

Scaled

inorganic synthesis

Question 7

10 / 10 pts

An element contains only one type of atom

True

False

Question 8

10 / 10 pts

The atomic number of an element tells you:

The number of neutrons in the atom

The number of protons in the atom

The charge of the atom

The number of protons + neutrons in the atom

Question 9

10 / 10 pts

Both ionic and covalent bonds are easily dissolved in water.

True

False

IncorrectQuestion 10

0 / 10 pts

Ionic bonds share electrons.

True

False

Quiz Score: 90 out of 100