Exam 2: The Chemical Level of Organization

Which property of water helps keeps body temperature stabilized?

In water, phospholipids tend to form tiny droplets with hydrophobic tails buried inside called

Sodium (NA) has an atomic number of 11. How many electrons are in the outer electron shell of a neutralsodium atom?

In-Text Figure Based Questions -What type of bond does an unsaturated fatty acid contain that a saturated fatty acid does not? (Figure 2-15)

The ________ of a radioactive substance is the time required for 50 percent of a given amount of radioisotope to decay.

Electrons whirl around the center of the atom at high speed, forming a(n)

Magnesium atoms have two electrons in the outermost shell. As a result, you would expect magnesium to formions with a charge of

The reaction H2CO3 ? H+ + HCO3 is what type of reaction?

Compounds that contain carbon as the primary structural atom are called ________ molecules.

During ionization, water molecules disrupt the ionic bonds of a salt to produce a mixture of ions. Theseions can carry a current and so are called

Identify the product formed from the phosphorylation of ADP.

Which of the following statements about hydrogen bonds is false?

When atoms complete their outer electron shell by sharing electrons, they form

An amino acid is to a protein as a ________ is to a nucleic acid.

What is the [H+] in pure water?

Which of the following functional groups is the hydroxyl group?

In-Text Figure Based Questions -How many electrons can the second energy level hold when it is completely filled? (Figure 2-3)

Of the following choices, the pH of the least acidic solution is

The actual mass of an atom is known as its

A shortage of steroids in the body would result in a shortage of