Across
- 5. Cells that recognize one another will group together (Cancer cells do not recognize each other)
- 6. complementary copies of distinct DNA, the genetic code
- 7. Controls the two major functions of the cell: Chemical reactions—synthesizing activities
- 9. transporter of specific amino acids (building blocks of proteins)
- 11. Membrane-bound organelles responsible for the breakdown of foreign substances that are engulfed by the cell by the process of phagocytosis or pinocytosis
- 14. The building blocks of tissues in the body are attached to each other and to noncellular surfaces by
- 15. cells attach to each other by fusion of their cell membranes
- 17. Cells must have the ability to form substances that produce products to aid in the body’s function
- 20. Fluids, chemical elements, and compounds must have the ability to move both in and out of cells
- 23. allowing some substances to pass through it and others to be excluded
- 24. found floating freely in the cytoplasm (polyribosomes) or attached to the ER
- 25. Transitory, nonliving metabolic byproducts found in the cytoplasm of the cell
- 27. Referred to as plasma membrane or plasmalemma; usually too thin to be seen with a light microscope
- 28. Extensive membranous system found throughout the cytoplasm of the cell; composed of lipoprotein membranes existing in the form of connecting tubules and broad, flattened sacs
- 29. Fluid located inside the cells of the body
- 30. Permitting entrance and exit of selected substrates
Down
- 1. the attachment of a cell to a noncellular surface
- 2. Translucent, aqueous, homogeneous gel enclosed in the cell by the cell membrane
- 3. Chemicals appear early in the development of the embryo
- 4. contain a channel that runs between cells for communication of cell electrical impulses and passage of molecules
- 8. This structure provides the chief source of energy for the cell (“powerhouse of the cell” by oxidation of nutrients) through enzymatic breakdown of fats, amino acids, and carbohydrates
- 10. the delicate balance maintained between the two fluid compositions
- 12. Smallest structures and functionally self-contained units in the body
- 13. Change in the environment stimulates the cell to bring about a response to adapt to a change
- 16. Cells must have the ability to preserve the species by giving rise to offspring
- 18. Fluid mass that circulates outside and between cells
- 19. The structure consists of stacks of closely spaced membranous sacs, in which newly formed proteins are concentrated and prepared for export out of the cell
- 21. cell-to-cell attachments
- 22. rough-surfaced endoplasmic reticulum (RER)
- 26. smooth-surfaced endoplasmic reticulum (SER)