Questions: Cells, Tissues, Organs, and Organ Systems
3 questions to test your understanding
Score: 0 / 3
Question 1 Multiple Choice
What is the correct order of organization in a living thing, from simplest to most complex?
AOrgan → tissue → cell → organ system
BCell → tissue → organ → organ system
CTissue → cell → organ system → organ
DOrgan system → organ → tissue → cell
The levels of organization go from smallest to largest: cells are the basic units; similar cells group into tissues; different tissues form organs; and organs that work together make up organ systems. This hierarchy builds complexity step by step.
Question 2 True / False
A tissue is made of many different types of cells working together.
TTrue
FFalse
Answer: False
A tissue is made of similar cells that perform the same function — for example, muscle tissue is made of muscle cells. It is an organ that is made of different types of tissues working together. The heart, for instance, contains muscle tissue, nerve tissue, and connective tissue.
Question 3 Short Answer
Give an example of how cells, tissues, organs, and organ systems are connected in the human body.
Think about your answer, then reveal below.
Model answer: Muscle cells group together to form muscle tissue. Muscle tissue, along with nerve tissue and connective tissue, forms the heart (an organ). The heart works with blood vessels to form the circulatory system (an organ system), which delivers oxygen and nutrients throughout the body.
This traces the hierarchy through a specific example, showing that each level builds on the one below it. Any organ system could serve as the example — the key is demonstrating the cell → tissue → organ → organ system progression.