Cell theory

Front

What is Cell Theory?

Back

Cell Theory is a fundamental concept in biology that states: 1) All living organisms are composed of one or more cells. 2) The cell is the basic unit of life. 3) All cells arise from pre-existing cells.

Front

What type of cell is bacteria?

Back

Bacteria are prokaryotic cells.

Front

Who are the three scientists credited with creating the Cell Theory?

Back

The three scientists are Schleiden, Schwann, and Virchow.

Front

What structure is found only in eukaryotic cells?

Back

The nucleus is found only in eukaryotic cells.

Front

What is a key difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack membrane-bound organelles, while eukaryotic cells contain membrane-bound organelles.

Front

What type of organism is characterized by having DNA not enclosed in a membrane?

Back

This organism is a prokaryote.

Front

What is the function of the nucleus in eukaryotic cells?

Back

The nucleus houses the cell's DNA and controls the cell's activities.

Front

What are membrane-bound organelles?

Back

Membrane-bound organelles are specialized structures within eukaryotic cells that are enclosed by membranes, such as the nucleus, mitochondria, and endoplasmic reticulum.

Front

What is the primary component of the cell membrane?

Back

The primary component of the cell membrane is the phospholipid bilayer.

Front

What is the role of ribosomes in a cell?

Back

Ribosomes are responsible for protein synthesis in both prokaryotic and eukaryotic cells.