front 1 Which of the following forms of energy is the stimulus for vision?
| back 1 D- Radiant |
front 2 All of the following are examples of the four major elements contributing to body mass except?
| back 2 D- Sodium |
front 3 The mass number of an atom is?
| back 3 B- The sum of protons and neutrons |
front 4 A deficiency in the element can be expected to reduce the hemoglobin content of blood.
| back 4 A- Fe |
front 5 Which set of terms best describes a proton?
| back 5 B- |
front 6 The subatomic particles responsible for the chemical behavior of atoms are?
| back 6 A- |
front 7 In the body carbohydrates are stored in the form of
| back 7 A- |
front 8 Which of the following does not describe a mixture?
| back 8 B- |
front 9 In a beaker of water the water-water bonds can properly be called?
| back 9 D- |
front 10 When a pair of electrons is shared between two atoms, the bond formed is called?
| back 10 A- |
front 11 Molecules formed when electrons are shared equally are?
| back 11 B- polar molecules |
front 12 Which of the following covalently bonded molecules are polar?
| back 12 A,C- |
front 13 What does ATP stand for? | back 13 Adenosine Triphosphate, Which is the organic molecule that stores and releases chemical energy for use in body cells. |
front 14 Factors that accelerate the rate of chemical reactions include all but
| back 14 C- increasing the particle size |
front 15 Which of the following molecules is an inorganic molecule?
| back 15 D- Sodium cholride |
front 16 Water's importance to living systems reflects?
| back 16 E- all of these |
front 17 Acids
| back 17 D- Release protons when dissolved in water |
front 18 A chemist, during the course of an analysis, runs across a chemical composed of carbon, hydrogen and oxygen in the proportion 1:2:1 and having a six-sided molecular shape. It is probably
| back 18 D- a monosaccharide |
front 19 A triglyceride consists of?
| back 19 A- glycerol plus three fatty acids |
front 20 A chemical has an amine group and an organic group. It does not, however have any peptide bonds.It is?
| back 20 B- a amino acid |
front 21 The lipid(s) used as the basis of vitamin D, sex hormones, and bile salts is/are?
| back 21 B- cholesterol |
front 22 Enzymes are organic catalysts that?
| back 22 C- increase the speed of a chemical reaction |