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
Chapter 7 {Cells}
| Term | Definition |
|---|---|
| Cell | Basic units of life |
| Cell Theory | A fundamental concept of biology. |
| Cell Membrane | A thin flexible barrier surrounding a cell |
| Nucleus | A large membrane enclosed structure that contains genetic material in the form of DNA and control's many of the cell's activities |
| Eukaryote | Cells that enclose their DNA in nuclei. |
| Prokaryote | Cells that do not enclose DNA in nuclei. |
| Cytoplasm | the portion of the cell outside the nucleus |
| Organelle | literally "little organs" |
| Vacuole | Large, saclike, membrane-enclosed structures in cells |
| Lysosome | |
| Cytoskeleton | Eukaryotic cells are given their shape and internal organization by this network of protein filaments |
| Centriole | Located in the nucleus and help organize cell division. |
| Ribosome | are small particles of RNA and protein found throughout the cytoplasm in all cells |
| Endoplasmic Reticulum | or ER, they are found in Eukaryotic cells and are internal membrane system. |
| Golgi Apparatus | A stack of flattened membranes. |
| Chloroplast | Capture the energy from sunlight and convert it into food that contains chemical energy in a process called photosynthesis |
| Mitochondrion | Convert the chemical energy stored in food into compounds that are more convenient for the cell to use. |
| Cell Wall | A strong supporting layer around the membrane |
| Lipid Bilayer | gives cell membranes a flexible structure that forms a strong barrier between the cell and its surroundings. |
| Selectively Permeable | Biological membranes can have some substances can pass across them and others cannot. |
| diffusion | the driving force behind the movement of may substances across the cell membrane. |
| facilitated diffusion | process in which molecules cannot directly diffuse across the membrane and pass through a special protein channels. |
| aquaporin | Water channel proteins |
| osmosis | the diffusion of water through selectively permeable membranes. |
| isotonic | |
| hypertonic | |
| hypotonic | |
| osmotic pressure | The movement of water out of or into a cell produces this force. |
| homeostasis | Relatively constant internal physical and chemical conditions |
| tissue | a group of similar cells that preform a particular function. |
| Organ | When many groups of tissues work together |
| Organ System | A group of organs that work together to specialize tasks. |
| Receptor | To respond to a chemical signal, a cell must have this to which the signaling molecule can bind. |
Created by:
schwartzs17
Popular Science sets