Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Cell Parts
Cell Parts and Processes
| Term | Definition |
|---|---|
| located in nucleus; strands containing genetic material that directs functions of cell | chromatin |
| located in nucleus; where ribosomes are made | nucleolus |
| region between cell membrane and nucleus; contains organelles | cytoplasm |
| tiny structures located in cytoplasm that carry out specific functions; include mitochondria, lysosomes, and vacuoles etc. | organelles |
| produce energy for the cell; think power plant | "mighty" mitochondria |
| looks like a maze of passageways; used to carry proteins and other materials; think city roads/sidewalks | endoplasmic reticulum or E.R. |
| small,dark grainlike bodies; protein producing "factories" | ribosomes |
| flattened collection of sacs and tubes; receive newly formed materials, package, and then distribute them to other cell parts; think mail room | Golgi bodies |
| storage areas (food, water, waste) | vacuoles |
| cell's clean-up crew | lysosomes |
| found in plant and bacteria cells; tough, flexible layer that protects and supports cell | cell wall |
| plant cell structure; green structures floating in cytoplasm capture sun's energy for photosynthesis | chloroplasts |
| separates cell from its environment; helps to control substances that enter and leave cell | cell membrane |
| controls activities of cell; contains chromatin and the nucleolus | nucleus |
| process by which molecules move from an area of higher concentration to lower concentration | diffusion |
| the movement of materials througha cell membrane without using cellular energy | passive transport |
| 2 examples of passive transport | diffusion and osmosis (diffusion of water) |
| 2 examples of active transport | use of transport proteins and engulfing (how amoebas eat) |
| 2 examples of substances that enter/leave a cell through passive transport | water, oxygen, carbon dioxide |
| 2 examples of substances that enter/leave a cell through active transport | sodium, calcium, potassium |
| the smaller the cell, the _ the surface area to volume ratio | smaller |
| membrane that allows some but not all substances pass through | semi-permeable |
| true or false: molecules are always moving | true |
| why cells are small | smaller cells have a higher surface area to volume ratio which allows substances to enter/leave the cell quickly and efficiently; this is necessary for the cell to survive |
| compare/contrast osmosis and diffusion | both are forms of passive transport; diffusion is the passive transport of any molecule across a selectively permeable membrane; osmosis is the passive transport of WATER molecules across selectively permeable membrane |
Created by:
mfarleigh
Popular Science sets