Understanding Cell Theory

The video explains the cell theory, stating that all living things are made of cells. It describes unicellular organisms, which consist of a single cell, and multicellular organisms, which have multiple cells. The video differentiates between prokaryotic cells, lacking a nucleus, and eukaryotic cells, which have a nucleus and membrane-bound organelles. It concludes with a reminder of the importance of kindness.

What does the cell theory state about living organisms?

• They are made of atoms.

• They are made of organs.

• They are made of tissues.

• They are made of cells.

Which of the following is an example of a unicellular organism?

• Dog

• Yeast

• Tree

• Lion

What is a characteristic of prokaryotic cells?

• They lack an organized nucleus.

• They are multicellular.

• They have membrane-bound organelles.

• They have a nucleus.

Which kingdoms are composed entirely of unicellular prokaryotic cells?

• Protista and Plantae

• Bacteria and Archaea

• Fungi and Protista

• Animalia and Plantae

What type of cells make up multicellular organisms?

• Prokaryotic cells

• Eukaryotic cells

• Both prokaryotic and eukaryotic cells

• Neither prokaryotic nor eukaryotic cells

Which of the following is NOT a multicellular organism?

• Tree

• Dog

• Lion

• Yeast

What is a defining feature of eukaryotic cells?

• They are always unicellular.

• They lack a nucleus.

• They are found only in plants.

• They have a nucleus and membrane-bound organelles.

Which of the following statements is true about multicellular organisms?

• They are made up of prokaryotic cells.

• They consist of a single cell.

• They do not have a nucleus.

• They are made up of eukaryotic cells.