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Chapter 7 Vocab YD
Miller Levine Chapter 7 Cells Vocabulary
Term | Definition |
---|---|
cell theory | All living things are made of cells, cells are the basic structure of living things, cells only come from other cells. |
prokaryotes | Cells that have genetic material NOT contained in the nucleus. |
eukaryotes | Cells that have a nucleus and membrane-bound organelles. |
organelles | structures inside the cell that act as specialized organs |
nuclear envelope | surrounds the nucleus, regulates what enters and leaves |
chromatin | DNA bound to protein and contained in the nucleus |
ribosomes | organelle that makes protiens |
endoplasmic reticulum | the "assembly line" of the cell for lipids and proteins |
nucleus | Cell organelle that contains DNA, Control center of cell |
Golgi Apparatus | Organelle that modifies, sorts, and packages proteins for shipping out of the cell |
Lysosome | Cell organelle filled with enzymes, the "Cleaner" of the cell. |
Cell membrane | Flexible barrier around the cell that is selectively permeable. |
Cell Wall | Strong supporting layer surrounding plant, algae, and some bacterial cells. |
Centriole | Tiny structures involved with moving chromosomes during cell reproduction |
chlorophyll | principle pigment of plant used to capture light energy |
chloroplast | Cell organelle that captures light energy and converts it into sugars through the process of photosynthesis |
chromatid | one of 2 identical sister parts of a duplicated chromosome |
cilia | short hairlike projections, usually numerous, that produce movement in cells |
chromosome | thread-like structure composed of DNA, found within the nucleus of cells |
cytoplasm | material inside of a cell in which the organelles "float" |
diffusion | movement of molecules of high concentration to low concentration |
flagella | whip-like structure that allows cells to move |
mitochondira | powerhouse of the cell |
nucleolus | small, dense region inside the nucleus....makes ribosomes |
osmosis | diffusion of water |
passive transport | diffusion of molecules across a membrane without the use of energy |
active transport | process that requires energy to move molecules across cell membranes |
unicellular | single celled organism |
vacuole | cell organelle that stores water and other substances |