Direction: Identify the following based on cell theory. Write the correct number on the line that corresponds to
the correct cell theory.
1 = All living things are made of cells
2 = Cell is the basic unit of life
3 = Cells come from pre-existing cells
_______1. A puppy growing bigger each month
_______2. A leaf examined under a microscope shows tiny compartments
_______3. A person’s wound heals after several days
_______4. Mushrooms are living organisms made of tiny cells
_______5. Bacteria dividing into two new bacteria
_______6. Scientists observe that plants, animals, and humans are composed of cells
_______7. Muscle cells working together to move your arm
_______8. Skin cells replacing dead skin every day
_______9. A tree trunk is made of millions of plant cells
_______10. Nerve cells sending signals through the body
_______11. A baby developing from a fertilized egg cell
_______12. Blood is made up of many individual cells
_______13. The cell carries out respiration and metabolism
_______14. Cells dividing during growth of fingernails
_______15. All living organisms observed under microscopes are made of cells
Direction: Identify the following based on cell theory. Write the correct number on the line that corresponds to
the correct cell theory.
1 = All living things are made of cells
2 = Cell is the basic unit of life
3 = Cells come from pre-existing cells
_______1. A puppy growing bigger each month
_______2. A leaf examined under a microscope shows tiny compartments
_______3. A person’s wound heals after several days
_______4. Mushrooms are living organisms made of tiny cells
_______5. Bacteria dividing into two new bacteria
_______6. Scientists observe that plants, animals, and humans are composed of cells
_______7. Muscle cells working together to move your arm
_______8. Skin cells replacing dead skin every day
_______9. A tree trunk is made of millions of plant cells
_______10. Nerve cells sending signals through the body
_______11. A baby developing from a fertilized egg cell
_______12. Blood is made up of many individual cells
_______13. The cell carries out respiration and metabolism
_______14. Cells dividing during growth of fingernails
_______15. All living organisms observed under microscopes are made of cells