_________ bonds are individually very weak.

11. Hemoglobin _________.
A. Is another term for oxygen
B. Repels oxygen
C. Attracts oxygen
D. Changes oxygen into carbon dioxide

28. Fluorescent lighting _________.
A. Is provided by and incandescent light bulb
B. Creates more heat than incandescent lighting
C. Can be used in tanning booths to produce a tan
D. Is an economical and long-lasting light source.

43. The smallest complete unit of an element is a/an _________.
A. Atom
B. Proton
C. Electrom
D. Neutron

16. The __________ is located behind the eyes and nose and connects all the bones to the cranium.
A. Temporal
B. Ethmoid
C. Occipital
D. Sphenoid

Alkaline waves are also known as _______.

12. The parietal bones form the _______.
A. Crown and the upper sides of the head.
B. The bridge of the nose
C. Upper jaw
D. Cheek

29. The measure of how much electrical energy is being used is called a/an ________.
A. Volt
B. Watt
C. Ohm
D. Ampere

44. ________ are basic substances that cannot be broken down into similar substances.

17. Blood travels from the heart by way of the ________.
A. Super Vena Cava
B. Aorta
C. Pulmonary Vein
D. Pulmonary Artery

The study of minerals would involve ________.
A. Organic chemistry
B. Inorganic chemistry
C. Both a and b
D. None of the above

13. The zygomatic nerve is the primary motor nerve of the face.
A. TRUE
B. FALSE

30. Electric current in which current flows first in one direction and then in the other is called ________.
A. Direct current
B. Alternating current
C. Galvanic current
D. Incandescent current

45. Additional chemical procedures using thioglycolic acid ______ a sodium hydroxide procedure.
A. May never be used after
B. May be used after the hair is completely dry following
C. May be used after 72 hours after
D. May be used one week after

49. When a solute is dissolved in a solvent it is a/an ________.
A. Suspension
B. Emulsion
C. Solution
D. Ointment

41. The most common oxidizing agent used in hair coloring and hair lightening is ________.
A. Water
B. Hydrogen peroxide
C. Henna
D. All of the above

14. There are _______ bones included in the cervical vertebrae.
A. 3
B. 6
C. 7
D. 9

31. Electricity is a form of energy that produces light, heat, magnetic, and ________ changes.

46. ________ are formed when two or more nonmixable substances are united with the help of a binder.
A. Solutions
B. Powders
C. Ointments
D. Emulsions

50. A hydrogen bond ________.
A. Works on the principle that opposite charges attract
B. Is very weak and can be broken by heat or water
C. Makes up about 35% of the hair’s strength due to sheer numbers
D. All of the above

42. The pH scale ________.
A. Measure whether a substance is acidic, neutral, or alkaline
B. Is useful only for substances containing water or that can be dissolved in water
C. Ranges from 0 to 14
D. All of the above

15. The largest organ of the body is the ________.
A. Skin
B. Liver
C. Brain
D. Stomach

32. Dropping an electrical appliance into water is an example of ________.
A. Overloading
B. An open circuit
C. A closed circuit
D. A short circuit

47. ________ defines cosmetics as “articles intended to be rubbed, poured, sprinkled, or otherwise applied to the human body or any part thereof for cleansing, beautifying, promoting attractiveness or altering the appearance. “
A. The Food and Drug Act of

Thrombocytes _________.
A. Are blood platelets
B. Carry oxygen
C. Carry Hemoglobin
D. Remove carbon dioxide