Exam 2: The Chemical Level of Organization

Positively charged subatomic particles are called

The molecule DNA contains the five-carbon sugar _________________________.

During ionization, water molecules disrupt the ionic bonds of a solute, resulting in a mixture of ions. These ions are called

When placed in water, an inorganic compound dissociates 99 percent, forming hydrogen ions and anions. This substance would be a

Which of the following is a function of proteins?

Lipids are used for which of the following?

Using the figure above, identify the labeled part. -Label E: ________

Which of the following is sometimes used in diagnostic imaging?

A(n) _________________________ contains atoms with the same atomic number.

Chlorine atoms have seven electrons in the outermost shell. As a result, one would expect chlorine to form ions with a charge of

If a polypeptide contains 9 peptide bonds, how many amino acids does it contain?

Reactions that result in larger molecules formed from smaller ones are called _________________________ reactions.

Proteins are composed of units called

_________________________ are compounds that maintain pH of solutions within given limits.

Which of the following is an example of a strong base?

The mass number represents the number of

Ions with a negative charge are called

Identify the following compounds as organic (O) or inorganic (I). 1._____ fatty acid 2._____ protein 3._____ hydrogen 4._____ glycogen 5._____ sodium

In a molecule of oxygen, two pairs of electrons are shared equally; such a bond is called a

The identity of an atom is determined by the