The Cell Theory

Front

What is the term for an organism that is made of many cells?

Back

Multicellular

Front

Who is credited with the invention of the first compound microscope?

Back

Zacharias Janssen

Front

Who discovered cells by examining cork under a microscope?

Back

Robert Hooke

Front

What is the smallest unit of life?

Back

Cell

Front

According to cell theory, where do cells originate from?

Back

Other living cells

Front

What is the basic unit of structure and function in living organisms?

Back

Cell

Front

What are the three main principles of cell theory?

Back

1. All living things are composed of cells. 2. The cell is the basic unit of life. 3. All cells arise from pre-existing cells.

Front

What type of microscope allows for the observation of cells in detail?

Back

Compound microscope

Front

What did Robert Hooke observe to discover cells?

Back

Cork

Front

What is the significance of the cell membrane?

Back

It regulates what enters and exits the cell, maintaining homeostasis.