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ch.7 bio flash
| Question | Answer |
|---|---|
| cells | basic unit of life |
| cell theory | a fundamental concept of biology that states: -All living things are composed of cells -Cells are the basic unit of structure and function in living things. -New cells are produced from existing cells. |
| nucleus | a large membrane-enclosed structure that contains the cell's genetic material in the form of DNA. |
| eukaryotes | cells that contain nuclei |
| prokaryotes | cells that DO NOT contain nuclei |
| organelles | litterally "little tissue". Many structures that act as if they are specialized organs. |
| cytoplasm | the portion of the cell outside the nucleus. |
| nuclear envelope | a layer surounding the nucleus composed of two membranes. |
| chromatin | the granular material you can see in the nucleus. |
| chromosomes | Distinct threadlike structures that contain the genetic information that is passed from generation of cells to the next. |
| nucleolus | A small dense region that most nuclei contain where the assembly of ribosomes begins. |
| ribosomes | small paricles of RNA and protein found throughout the cytoplasm. |
| endoplasmic reticulum | (ER) An internal membrane system that eukaryotic cells contain. |
| Golgi apparatus | |
| lysosomes | small organelles filled with enzymes. |
| vacuoles | Sacklike structures that store materials such as water, salts, proteins, and carbohydrates that some kinds of cells contain. |
| mitochondria | organelles that convert the chemical energy stored in food into compounds that are more conveinent for the cell to use. |
| chloroplasts | organelles that capture the energy from sunlight and convert it into chemical energy in a process called photosynthesis. |
| cytoskeleton | A supporting structure that give the shape and internal organization to eukaryotic cells |
| centrioles | located near the nucleus and help to organize cell division. |
| cell membrane | a thin flexible barrier that surrounds all cells |
| cell wall | a strong suppoting layer around the membrane that many cells produce. |
| lipid bilayer | the composition of nearly all cell membranes that is a double layered sheet. |
| concentration | the mass of solute in a given volume of solution. |
| diffusion | |
| equalibrium | j |
| osmosis | j |
| isotonic | j |
| hypertonic | j |
| hypotonic | jj |
| facilitated diffusion | j |
| active transport | j |
| endocytosis | j |
| phagocytosis | j |
| pinocytosis | j |
| exocytosis | j |
| cell specialization | j |
| tissue | j |
| organ | j |
| organ system | jj |
Created by:
cocolove29
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