DN: 2/20/25 Understanding Cell Theory Basics

What is the basic unit of life according to cell theory?

• Tissue

• Organ

• Cell

• Organism

Who are the scientists credited with the development of cell theory?

• Albert Einstein and Isaac Newton

• Theodor Schwann and Matthias Schleiden

• Charles Darwin and Gregor Mendel

• Louis Pasteur and Robert Koch

According to cell theory, where do all cells come from?

• Spontaneous generation

• Pre-existing cells

• Non-living matter

• Chemical reactions

Which of the following statements is NOT a part of the cell theory?

• All living things are composed of one or more cells.

• Cells are the basic unit of structure and function in living things.

• All cells have a nucleus.

• All cells arise from pre-existing cells.

What is the primary function of the cell membrane?

• To produce energy for the cell

• To control the movement of substances in and out of the cell

• To store genetic information

• To synthesize proteins