Question | Answer |
Cell | smallest unit that can perform all the life processes |
cell specialization | ability of different cells to perform specific functions in a multicellular organism, such as protection, mobility and reproduction. |
cell wall | Provides structure for the cell. Only found in plant cells. |
Chemical Signals | hormones and neurotransmitters that send "messages" from one cell to another |
Cytoplasm | Fluid material inside the cell. Contains the structures of the cell. |
Eukaryote | complex cell that has nucleus and membrane bound organelles. |
Hormones | substance released by glands to produce change from within. |
Nucleus | organelle that houses the DNA of eukaryotic cells |
Organelle | subcellular structure that has a special function. |
plasma membrane | thin layer on the surface of all cells, consisting mainly of lipids and proteins. |
Prokaryote | a cell without a nucleus |
Ribosome | organelle on which proteins are synthesized. |
Semi-permeable | allows passage of only certain types of molecules |
Cilia | hair like organelles that line the surfaces of some cells that beat in rhythmic waves, providing locomotion |
contractile vacuole | found in many microorganisms that expand, filled with water and then empties contents to the exterior. |
Flagella | Whip-like tail that enables some organisms to move. |
stem cells | can divide (through mitosis) and differentiate into diverse specialized cell types |
Differentiation | The structural and functional divergence of cells as they become specialized during a multicellular organism's development; dependent on the control of gene expression. |