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ch.7 wood
| Question | Answer |
|---|---|
| cells | units of life |
| cwll theory | fundimentle concept of biology |
| nucleus | contains the cells genetic material in form of DNA |
| eukaroytes | cells that contain nuclei |
| prokaryotes | cells that dont contain nuclei |
| onganelles | little organisms |
| cytoplasm | portion of a cell outside ofthe nucleus |
| nuclear envelope | sorrounded by two membranes |
| chromatin | the granular material you can see in thew nucleus |
| chromosomes | distinct thread like structures contain the genetic information that is passed from generartion to generation |
| nucleolus | where the assembly of ribosomes begins |
| ribosomes | small particles of rna ans protien found throught the cytoplasim |
| endoplasmic reticulum | internal membrane system |
| golgi apperaratus | protiens produced in the rough er move next into an orgenalle |
| lysosmes | small organelles filled with enzymes |
| vacuols | saclike structures that store materials |
| mitochondria | organelles thaconvert the chemical energy stored in food into compounds |
| chloroplasts | organelles that capture the energy from the sunlight and convert into chemical energy |
| cytoskeleton | give eukaryotic cells there shape |
| centrioles | organize cell division |
| cell membrane | a thin flexible barrior |
| cell wall | supporting layer around a membrane |
| lipid bilayer | the composition of nearly all cell membranes is s double layered sheet |
| concentration | mass solute in a given volume of solution |
| diffusion | particles move from condensed to un crowded areas |
| equilibrium | when the concentration of the solute is the same throughout the system |
| osmosis | the diffusion of water through a selectively permeable membrane |
| isotonic | means both are sides of the membrane are equal |
| hypertonic | means above strength |
| hypotonic | means below strength |
| facilitated diffusion | the diffusion of glucose across a membrane |
| active transport | materials move in opposite direction |
| endocytosis | taking material into the cell by means of infoldings |
| phagocytosis | extensions of cytoplasm |
| pinocytosis | a pinch off to form vacuoles within a cell |
| exocytosis | the membrane of the vacuole |
| cell specialization | cells throughout an organism can develop in different ways to preform different tasks |
| tissue | a group of similar cells that preform a particular function |
| organ | many groups of tissues working together. |
| organ system | a group of organs that work together to preform a specific function |
Created by:
treywood
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