1. Cells: The Basic Units of Life CHAPTER 3

2. 1.Which phrase describes a cell?  a.is always very small  b.does everything needed for life  c.always looks like an egg  d.is found only in plants

3. 2.What are all organisms made of?  a.plants  b.protists  c.cells  d.eggs

4. 3.Where do all cells come from?  a.animals  b.ponds  c.cells  d.eggs

5. 4.What keeps the size of most cells very small?  a.their hard shells  b.the surface area–to- volume ratio  c.food and wastes  d.their thin surfaces

6. 5.What protects the inside of a cell from the outside world?  a.cytoplasmc.cell membrane  b.nucleusd.DNA

7. 6.How are archaea different from bacteria?  a.Archaea have different ribosomes.  b.Archaea have only one cell.  c.Archaea have cell membranes.  d.Archaea have RNA, not DNA.

8. 7.What is cytoplasm?  a.the nucleus of a cell  b.the fluid inside a cell  c.the genetic material in a cell  d.the proteins in a cell

9. 8.Where does photosynthesis take place in a cell?  a.in the nucleus  b.in the mitochondria  c.in the chloroplasts  d.in the ribosomes

10. 9.What does the Golgi complex do in a cell?  a.It packages and distributes proteins.  b.It is the power source of the cell.  c.It makes sugar and oxygen.  d.It makes proteins.

11. 10.What is the job of the lysosomes?  a.They store water.  b.They digest food particles.  c.They make new cells.  d.They package proteins.

12. 11.a cell with a nucleus  a.DNA  b.eukaryote  c.nucleus  d.prokaryote

13. 12.a cell without a nucleus  a.DNA  b.eukaryote  c.nucleus  d.prokaryote

14. 13.genetic material in cells  a.DNA  b.eukaryote  c.nucleus  d.prokaryote

15. 14.where DNA is stored  a.DNA  b.eukaryote  c.nucleus  d.prokaryote

16. 15.stiff surfaces that support cells  a.cell walls  b. endoplasmic reticulum  c.ribosome

17. 16.organelle that makes proteins  a.cell walls  b. endoplasmic reticulum  c.ribosome

18. 17.a cell’s delivery system  a.cell walls  b. endoplasmic reticulum  c.ribosome

19. 18.The lowest level of organization is the ______________________  A. cell  B. multicellular  C. organ  D. structure  E. system  F. tissue

20. 19.Cells that are like each other and do the same job form a(n)  A. cell  B. multicellular  C. organ  D. structure  E. system  F. tissue

21. 20.A structure made of two or more tissues working together is called a(n)  A. cell  B. multicellular  C. organ  D. structure  E. system  F. tissue

22. 21.A group of organs that work together forms an organ  A. cell  B. multicellular  C. organ  D. structure  E. system  F. tissue

23. 22.Larger size, longer life, and more- specialized cells are characteristics of ______________________ organisms.  A. cell  B. multicellular  C. organ  D. structure  E. system  F. tissue

24. 23.How a part of an organism works is related to how it is built, or its  A. cell  B. multicellular  C. organ  D. structure  E. system  F. tissue