Biology Project

1. The membrane at the boundary of every cell that acts as a selective barrier, thereby regulating the cell's chemical composition.
7. The semifluid portion of the cytoplasm.
8. threadlike structures made of DNA molecules that contain the genes
10. have a nucleus and other membrane-bound organelles
11. A kingdom that contains all prokaryotes except archaebacteria
13. A part of the cell containing DNA and RNA and responsible for growth and reproduction
15. Organisms whose cells have a nucleus and membrane bound organelles.

2. Gram-negative bacteria that congregate to form complex structures called fruiting bodies
3. Found inside the nucleus and produces ribosomes
4. smallest known bacteria, no cell wall
5. network of protein filaments within some cells that helps the cell maintain its shape and is involved in many forms of cell movement
6. thin, flexible barrier around a cell; regulates what enters and leaves the cell
9. A double membrane that surrounds the nucleus in the cell
12. A jellylike fluid inside the cell in which the organelles are suspended
14. A rigid structure that surrounds the cell membrane and provides support to the cell