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mai's science 1
science review
| Term | Definition |
|---|---|
| cell | the smallest unit of life |
| multicellular | organisms that are composed of more than one cells |
| unicellular | organisms that are compose of one cell |
| homeostasis | organism's ability to maintain the inside condition when outside condition change |
| species | is a group of organism that have similar traits and are able to reproduce fertile offspring |
| genus | is a group of similar species |
| binomial nomenclature | give organism two-words specific name |
| dichotomous key | is a series of descriptions arranged by pair that led the user to the identification of unknown organism. |
| cladogram | is a branched diagram that shows relationship among organisms. |
| light microscope | use light and lenses to enlarge an image of the object |
| compound microscope | light microscope that uses more than one lens to magnify an object |
| electron microscope | use magnetic field to focus a beam of electron through the object's surface |
| nucleus | direct all the cell's activities and contain the genetic material |
| cell membrane | the flexible covering that protect inside the cell from outside environment |
| cellwall | the stiff structure that protect the cell from attacking of virus'sand bacteria |
| chloroplast | is a bound-membrane organelles that use light energy to make food. |
| cytoplasm | the fluid inside the cells that contain salts and other molecules |
| cytoskeleton | the network of threadlike of protein |
| organelles | tiny organs inside the cells that have its specific function |
| passive transport | is the movement of molecules that don't need energy |
| diffusion | is the movement of substance from the area of higher concentration to the area of lower concentration |
| osmosis | is the movement of water molecules through the cell membrane |
| facilitated diffusion | is when molecules pass through cell membrane using special proteins called transport protein |
| active transport | is a diffusion that use energy |
| endocytosis | is the process during a cell takes in the substance by surrounding in with the cell membrane |
| exocytosis | is the process during which cell's vesicle release their contents outside the cell |
Created by:
mainapat
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