Washington Cosmetology License Practice Exam

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Prepare for the Washington Cosmetology License Exam with detailed explanations of each question. Study using flashcards and multiple choice questions to ensure you pass the 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 substance are the cells of living things composed of?

Protoplasm
Nucleoplasm
Cytoplasm
Hydroplasm

The correct answer is: Protoplasm

Living cells are composed of various substances, but the primary substance they are composed of is protoplasm. Protoplasm is a collective term used to describe all the living components of a cell, including the cytoplasm (gel-like substance surrounding the organelles), nucleoplasm (fluid inside the nucleus), and other cell organelles. Therefore, options B, C, and D are incorrect because they do not encompass all the essential components of a cell as protoplasm does.