1. Vocabulary Review
Chapter 3 - Cells

2. In biology, the smallest unit that can perform all life processes; cells are covered by a membrane and have DNA and cytoplasm
Cell

3. A phospholipid layer that covers a cell’s surface; acts as a barrier between the inside of a cell and the cell’s environment
Cell membrane

4. One of the small bodies in a cell’s cytoplasm that is specialized to perform a specific function
Organelle

5. In a eukaryotic cell, a membrane-bound organelle that contains the cell’s DNA and that has a role in processes such as growth, metabolism, and reproduction
Nucleus

6. An organism that consists of a single cell that does not have a nucleus
Prokaryote

7. An organism made up of cells that have a nucleus enclosed by a membrane; eukaryotes include animals, plants, and fungi
Eukaryote

8. A rigid structure that surrounds the cell membrane and provides support to the cell
Cell wall

9. Cell organelle composed of RNA and protein; site of protein synthesis
Ribosome

10. Endoplasmic reticulum
A system of membranes that is found in a cell’s cytoplasm and that assists in the production, processing, and transport of proteins and in the production of lipids
Endoplasmic reticulum

11. In eukaryotic cells, the cell organelle that is surrounded by two membranes and that is the site of cellular respiration
Mitochondrion

12. Cell organelle that helps make and package materials to be transported out of the cell
Golgi complex

13. A small cavity or sac that contains materials in a eukaryotic cell
Vesicle

14. A cell organelle that contains digestive enzymes
Lysosome

15. A group of similar cells that perform a common function
Tissue

16. A collection of tissues that carry out a specialized function of the body
Organ

17. A group of organs that work together to perform body functions
Organ system

18. A living thing; anything that can carry out life processes independently
Organism

19. The arrangement of parts in an organism
Structure

20. The special, normal, or proper activity of an organ or part
Function