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7.1 & 7.2 CP Bio
CP Vocab for 7.1 and 7.2
Term | Definition |
---|---|
Cell | Basic unit of all forms of life. |
Cell Theory | Fundamental concept of biology that states all living things are composed of cells; that cells are the basic units of structure and function in living things; and that new cells are produced from existing cell. |
Cell Membrane | Thin, flexible barrier that surrounds all cells; regulates what enters and leaves the cell. |
Nucleus | The center of an atom, which contains the protons and neutrons; in cells, structure that contains the cell's genetic material in the form of DNA. |
Eukaryote | Organism whose cells contain a nucleus. |
Prokaryote | Unicellular organism that lacks a nucleus. |
Cytoplasm | In eukaryotic cells, all cellular contents outside the nucleus, in prokaryotic cells, all of the cell's contents. |
Organelle | Specialized structure that performs important cellular functions within a cell. |
Vacuole | Cell organelle that stores materials such as water, salts, proteins, and carbohydrates. |
Lysosome | Cell organism that breaks down lipids, carbohydrates, and proteins into smaller molecules that can be used by the rest of the cell. |
Cytoskeleton | Network of protein filaments in a eukaryotic cell that gives the cell its shape and internal organization and is involved in movement. |
Centriole | Structure in an animal cell that helps to organize cell division. |
Ribosome | Cell organelle consisting of RNA and protein found throughout the cytoplasm in a cell, the site of protein synthesis. |
Endoplasmic Reticulum (ER) | Internal membrane system found in eukaryotic cells; place where lipid components of the cell membrane are assembled. |
Golgi Apparatus | Organelle in cells that modifies, sorts, and packages proteins and other materials from the endoplasmic reticulum for storage in the cell or release outside the cell. |
Chloroplast | Organelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy. |
Cell Wall | Strong, supporting layer around the cell membrane in some cells. |
Selectively Permeable | Property of biological membranes that allows some substances to pass across it while others cannot; also called semipermeable membrane. |
Mitochondria | Cell organelle that converts the chemical energy stored in food into compounds that are more convenient for the cell to use. |