Exploring Cell Theory and Cell Types

This video tutorial introduces the concept of cells as the smallest living units, discovered through the use of microscopes. It explains the cell theory, which states that all living things are made of cells, cells are the basic units of structure and function, and new cells arise from existing cells. The video distinguishes between prokaryotic and eukaryotic cells, highlighting their differences in complexity, structure, and function. Prokaryotic cells are simpler and lack a nucleus, while eukaryotic cells are more complex with a nucleus and specialized organelles.

What is the smallest unit that is considered living?

• Molecule

• Atom

• Organelles

• Cell

Why was the development of the microscope important?

• It was used to study nonliving things.

• It helped in the discovery of atoms.

• It replaced the need for other scientific tools.

• It advanced our understanding of life.

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

• Cells can spontaneously generate.

• New cells are produced from existing cells.

• Cells are the basic units of structure and function.

• All living things are made of cells.

What is an example of something that is not made of cells and is therefore not considered living?

• Viruses

• Bacteria

• Plants

• Animals

Which type of cells were the first to exist in the biosphere?

• Eukaryotic cells

• Plant cells

• Animal cells

• Prokaryotic cells

What is a key characteristic of prokaryotic cells?

• They are larger and more complex.

• They have membrane-bound organelles.

• They have a nucleus.

• They lack a nucleus.

Which kingdoms are composed of prokaryotic cells?

• Plants and animals

• All of the above

• Protists and fungi

• Bacterial kingdoms

Which of the following is true about eukaryotic cells?

• They are only found in bacteria.

• They have specialized organelles.

• They are smaller and less complex.

• They lack a nucleus.

Which of the following is NOT a kingdom made up of eukaryotic cells?

• Protists

• Bacteria

• Fungi

• Plants

What is a visual difference between prokaryotic and eukaryotic cells?

• Prokaryotic cells have specialized organelles.

• Prokaryotic cells have a nucleus.

• Eukaryotic cells lack a cell membrane.

• Eukaryotic cells have a nucleus.