Exam 2: Chemistry of Life

Phospholipids contain three fatty acids.

Which substance is found only in DNA?

A molecule of glucose is larger than a molecule of sucrose.

The nitrogen atom has a total of seven electrons. To have a full outer energy level, it would have to

Cholesterol is a steroid lipid.

Triglycerides

Glycogen and starch are both examples of polysaccharides.

The smallest unit of matter is the electron.

Which of the following is an example of a polysaccharide?

Match each organic compound with its corresponding description. -Nucleic acid that contains the nitrogen base uracil

Which subatomic particle has no charge?

Match each organic compound with its corresponding description. -Lipid that is used to make hormones such as estrogen and testosterone

Chemical bonds form when atoms share, donate, or borrow electrons.

For a compound to be considered an organic compound it must have a C-O or an H-O bond.

Both fats and oils are lipids.

When a strong acid and a strong base react, one of the end products is a salt.

Match each part of the atom with its corresponding description. -Part of the atom that is found in orbitals around the nucleus

The number of electrons in the outer energy level of an atom determines how it behaves chemically.

A solution with a pH of 5 has more H⁺ ions than a solution with a pH of 7.

Describe the structure of a protein, and give examples of structural proteins and functional proteins.