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Chapter 3 - Cells and Tissues
Across
9. The component of a solution that is present in the smaller amount and is dissolved is the?
10. In cell division, the term that refers to division of the cytoplasm is?
11. Whiplike cellular extensions that move substances along the cell surface are called
14. A primary tissue; form and function vary extensively. Functions include support, storage, and protection.
15. The shriveling of a cell, for example an erythrocyte, resulting from loss of water.
16. Small cellular structures (ribosomes, mitochondria, and others) that perform specific metabolic functions for the cell as a whole.
18. Diffusion of a solvent, usually water, through a membrane from a dilute solution into a more concentrated one.
19. A group of similar cells (and their intercellular substance) specialized to perform a specific function.
Down
1. The cellular material surrounding the nucleus and enclosed by the plasma membrane.
2. Structures in the nucleus that carry the hereditary factors (genes).
3. The membrane connections that prevent the leaking of fluid between cells are called?
4. The step, during protein synthesis, of assembling proteins by decoding the information in messenger RNA is called?
5. The division of cytoplasm that occurs after the cell nucleus has divided.
6. Minute structure found near the nucleus of the cell; active in cell division.
7. The movement of substances through the cell membrane against their concentration gradient is called?
8. Tiny projections on the free surfaces of some epithelial cells; increase surface area for absorption.
12. The period of the cell cycle when the cell grows and performs its metabolic activities is?
13. The random movement of molecules (and ions) down their concentration gradient is called?
15. The structural and functional unit of living organisms; contains a nucleus and a variety of organelles enclosed by a limiting membrane.
17. One of the biological units of heredity located in chromatin; transmits hereditary information.