Pennsylvania Cosmetology Practice Exam

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Prepare for the Pennsylvania Cosmetology Exam with study materials featuring flashcards and multiple choice questions. Each question comes with hints and explanations to enhance your understanding. Ace your exam with confidence!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What are cells described as?

The basic units of living matter
Small organs in the body
Units of chemical reactions
Building blocks of proteins

The correct answer is: The basic units of living matter

Cells are described as the basic units of living matter because they are the smallest structural and functional unit of all living organisms and are responsible for carrying out all processes necessary for life. Option B is incorrect because cells are not organs, and organs are made up of cells. Option C is incorrect because while cells do carry out chemical reactions, they are not solely defined as units of chemical reactions. Option D is incorrect because while cells do build proteins, they are not solely defined as building blocks of proteins.