Cells & Cell Theory

Who was the first scientist to observe bacteria?

• Louis Pasteur

• Robert Koch

• Anton van Leeuwenhoek

• Joseph Lister

What is the function of the cell membrane?

• It provides energy to the cell.

• It protects the cell and controls what enters and exits.

• It stores genetic information.

• It helps in cell division.

What is the function of the nucleus in a cell?

• It contains the cell's genetic material and controls its activities.

• It produces energy for the cell.

• It helps in the synthesis of proteins.

• It regulates the cell's water balance.

What is the jelly-like substance inside a cell called?

• Cytoplasm

• Nucleus

• Mitochondria

• Chloroplast

What is the main difference between prokaryotic and eukaryotic cells?

• Prokaryotic cells have a nucleus; eukaryotic cells do not.

• Prokaryotic cells are larger than eukaryotic cells.

• Prokaryotic cells do not have a nucleus; eukaryotic cells do.

• Prokaryotic cells have membrane-bound organelles; eukaryotic cells do not.

What are the two main types of cells?

• Prokaryotic and Eukaryotic

• Animal and Plant

• Single-celled and Multi-celled

• Bacterial and Viral

What theory did Robert Hooke, Anton van Leeuwenhoek, Theodor Schwann, Rudolf Virchow, and Matthias Schleiden contribute to?

• The Cell Theory

• The Germ Theory

• The Theory of Evolution

• The Atomic Theory

What structure in plant cells helps maintain their shape?

• Cell membrane

• Cytoplasm

• Cell wall

• Nucleus

What type of cell is characterized by having a nucleus?

• Prokaryote

• Eukaryote

• Archaea

• Bacteria

What is the basic unit of life?

• Tissue

• Organ

• Cell

• Organism