Exam 3: Chemistry of Life

Acids release protons in solution.

Synthesis reactions release energy for use by the cell.

Particles slightly larger than molecules can become dispersed in water without settling out. This type of watery mixture is called a(n):

Acids are electrolytes that produce OH⁺ ions.

ATP is broken down in an anabolic reaction.

Which of the following bonds are the weakest?

Catabolism and anabolism are major types of metabolic activity.

Oxygen has eight electrons, but only six of them are in its outermost energy level.

Inorganic compounds do not play an important role in living systems.

Hydrogen bonds between atoms do not form molecules or compounds.

Approximately what percentage of the body weight of an adult is water?

Explain the types of chemical reactions discussed in this chapter, and give the formula for each.

Which subatomic particles carry a charge?

During catabolic reactions, some of the energy is released as heat to help keep the body warm.

An ionic bond forms crystals whereas a covalent bond forms molecules.

An example of an element would be:

Gamma radiation has less mass than alpha or beta radiation.

Radiation results from the breaking apart of the nucleus of an atom.

Explain why the properties of water are important in the functioning of the body.

The body can dissipate excess heat and maintain normal temperature by evaporation of water by the property of: