OHIO BARBER 2027 REVIEW TIPS ANSWERS AND
QUESTIONS SET A+
✔✔Permanent Haircolor - ✔✔can deposit and/or lighten the natural pigments located in
the cortex layer of the hair.
✔✔Direct current - ✔✔an electric current flowing in one direction only.
✔✔Alternating current - ✔✔A flow of electric charge that regularly reverses its direction.
✔✔Complete circuit - ✔✔The path of an electric current from the generating source
through conductors and back to its original source.
✔✔Rectifier - ✔✔Apparatus that changes alternating current to direct current
✔✔Insulator - ✔✔A material that does not allow heat or electrons to move through it
easily.
✔✔Conductor - ✔✔A material that allows heat and electricity to pass through it.
✔✔Faradic Current - ✔✔Alternating current, interrupted to produce a mechanical, non-
chemical reaction.
✔✔Galvanic current - ✔✔Constant and direct current, having a positive and negative
pole, that produces chemical changes when it passes through the tissues and fluids of
the body.
✔✔Circuit breaker - ✔✔a switch that opens when the current in a circuit is too high.
✔✔Sinusoidal current - ✔✔alternating current similar to faradic current; produces
mechanical contractions and is used during scalp and facial manipulations.
✔✔Etiology - ✔✔study of the cause of disease.
, ✔✔Myology - ✔✔Study of muscles, their structure, function, and diseases.
✔✔Microbiology - ✔✔The study of microorganisms.
✔✔Phenolic - ✔✔a derivative of phenol used as a disinfectant.
✔✔Carcinogen - ✔✔A cancer-causing substance.
✔✔organic chemistry - ✔✔the study of all chemicals containing carbon.
✔✔inorganic chemistry - ✔✔the study of chemicals that do not contain carbon.
✔✔Matter - ✔✔Anything that has mass and occupy space.
✔✔Mnemonics - ✔✔memory aids.
✔✔OSHA (Occupational Safety and Health Administration) - ✔✔a government agency
in the Department of Labor to maintain a safe and healthy work environment.
✔✔EPA (Environmental Protection Agency) - ✔✔Federal agency created in 1970 to
oversee environmental monitoring and cleanup programs.
✔✔FDA (Food and Drug Administration) - ✔✔an agency in charge of ensuring the
safety of all foods sold except meat, poultry, and seafood.
✔✔Cathode - ✔✔Negative electrode.
✔✔Anode - ✔✔Positive electrode.
✔✔Anabolism - ✔✔Metabolic pathways that construct molecules, requiring energy.
✔✔Catabolism - ✔✔Metabolic pathways that break down molecules, releasing energy.
✔✔Arteries - ✔✔carry blood away from the heart.
✔✔capillary - ✔✔A tiny blood vessel where substances are exchanged between the
blood and the body cells.
✔✔Lymph - ✔✔watery fluid.
✔✔Lymphatic system - ✔✔Composed of a network of vessels, ducts, nodes, and
organs. Provides defense against infection.
QUESTIONS SET A+
✔✔Permanent Haircolor - ✔✔can deposit and/or lighten the natural pigments located in
the cortex layer of the hair.
✔✔Direct current - ✔✔an electric current flowing in one direction only.
✔✔Alternating current - ✔✔A flow of electric charge that regularly reverses its direction.
✔✔Complete circuit - ✔✔The path of an electric current from the generating source
through conductors and back to its original source.
✔✔Rectifier - ✔✔Apparatus that changes alternating current to direct current
✔✔Insulator - ✔✔A material that does not allow heat or electrons to move through it
easily.
✔✔Conductor - ✔✔A material that allows heat and electricity to pass through it.
✔✔Faradic Current - ✔✔Alternating current, interrupted to produce a mechanical, non-
chemical reaction.
✔✔Galvanic current - ✔✔Constant and direct current, having a positive and negative
pole, that produces chemical changes when it passes through the tissues and fluids of
the body.
✔✔Circuit breaker - ✔✔a switch that opens when the current in a circuit is too high.
✔✔Sinusoidal current - ✔✔alternating current similar to faradic current; produces
mechanical contractions and is used during scalp and facial manipulations.
✔✔Etiology - ✔✔study of the cause of disease.
, ✔✔Myology - ✔✔Study of muscles, their structure, function, and diseases.
✔✔Microbiology - ✔✔The study of microorganisms.
✔✔Phenolic - ✔✔a derivative of phenol used as a disinfectant.
✔✔Carcinogen - ✔✔A cancer-causing substance.
✔✔organic chemistry - ✔✔the study of all chemicals containing carbon.
✔✔inorganic chemistry - ✔✔the study of chemicals that do not contain carbon.
✔✔Matter - ✔✔Anything that has mass and occupy space.
✔✔Mnemonics - ✔✔memory aids.
✔✔OSHA (Occupational Safety and Health Administration) - ✔✔a government agency
in the Department of Labor to maintain a safe and healthy work environment.
✔✔EPA (Environmental Protection Agency) - ✔✔Federal agency created in 1970 to
oversee environmental monitoring and cleanup programs.
✔✔FDA (Food and Drug Administration) - ✔✔an agency in charge of ensuring the
safety of all foods sold except meat, poultry, and seafood.
✔✔Cathode - ✔✔Negative electrode.
✔✔Anode - ✔✔Positive electrode.
✔✔Anabolism - ✔✔Metabolic pathways that construct molecules, requiring energy.
✔✔Catabolism - ✔✔Metabolic pathways that break down molecules, releasing energy.
✔✔Arteries - ✔✔carry blood away from the heart.
✔✔capillary - ✔✔A tiny blood vessel where substances are exchanged between the
blood and the body cells.
✔✔Lymph - ✔✔watery fluid.
✔✔Lymphatic system - ✔✔Composed of a network of vessels, ducts, nodes, and
organs. Provides defense against infection.
