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cells and diffusion
Cells and diffusion test review
| Question | Answer |
|---|---|
| prokaryotes | cells without a nucleus |
| eukaryotes | cells with a nucleus |
| cytoskeleton | protien structures taht hepl maintain the cell shape |
| cell theroy | 1. call cells come from pre existing cells 2. all cells are the baic form of life. 3. all living thigs are made of cells |
| nucleus | controlls the cell, contains DNA and chromosomes. usually round |
| nuclear membrane | regulates what goes in and out of the nucleus |
| nucleolus | produces RNA and ribosomes |
| ribosomes | produce protein |
| RER | looks like folded towels, transports and synthesis of important products |
| cytoplasm | 85% water, holdes all organells in the cell |
| vacuole | storage for plants, very large, also digest |
| cell membrance | water like refred to as the fluid mosaic modle |
| lysomes | digest food in the cell, and also a storage of food in an animal cell |
| mitochondria | power house of a cell, produces ATP |
| golgi apparatus | looks liek flattened pancakes, and it is the UPS of the cell and transport out of the cell |
| centriole | hepl in the reproduction of cells |
| cell wall | made of mostly cellulose, only found in plants |
| chloroplast | where photosynthesis occurs in a plant cell |
| exeptions to cell theory? | viruses- use a host cell to carry out life functions, 2. the first cell, 3 mitochondria and chloropast have their own DNA bein able to reproduce |
| what is diffusion | movement of a substance from a High to a Low concentration of area |
| what is the name of water diffusing? | Osmosis |
| active transport is? | the movement of liquid from a Low to a High area of concentration |
| another word for diffusion? | passive transport |
| what part of a lipid is hydrophilic? | head |
| what part of the lipid is hydrophobic | tail |
| when can a cell swell? | when water difuses into a cell |
| when can a cell shrink? | when the cell is placed in a hypertonic situation |
| cyclosis is? | the movement of chloropast around the cell |
| why must starch be broken down? | the starch cell is too large for cells to take in. first it must be broken into simple sugars like glucose so it may difuse into the cell |
| phagocytosis | when a cell eats another cell for nutriants |
| pinocytosis | when a cell squeezes a cell for its liquid |
| exocytosis | when a cell removes of waste by difusing with a vacuole |
Created by:
Ravster8215
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