Chapter 4: Cell Structure

1. rigid structure,composed of cellulose, lignin, and/or pectin, surrounding plant cells and found also in bacteria and fungal cells
3. network of membrane-bound compartments in the cytoplasm
7. proposed that cells arise from pre-existing cells
8. first to draw and name cells "Cellulae"
10. ER with not ribosomes; used for lipid synthesis, breakdown of carbs and lipids;detoxification
11. structures composed of DNA and proteins (histones)
13. first to notice that plant bodies are made up of cells
15. cells do not have a organelles
16. cells have a body composed of these
18. discovered the nucleus in cells
22. cells have a organelles
23. area where the chromosome is located
24. a jelly-like interior
26. howe we are able to visualize cellsl;used to magnify and resolve

2. first to describe small organisms in water
4. also an organelle surrounded by a single membrane called tonoplast
5. cells are the foundational units of life
6. ER with granular ribosomes and used for protein synthesis
9. organelle, very close relative of the mitochondria; it is surrounded by a double membrane
12. an organelle surrounded by a double membrane
14. smallest units of life
17. structures on which proteins are synthesized
19. circular forms of DNA
20. the structures that surround cells
21. stack of membranous sacs containing enzymes that modify proteins and lipids and transport
25. proposed that animals were made up of cells