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Definition
-1st to use the term cell
-used cork |
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Term
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Definition
1. All living things are composed of cells
2. cells are the basic units of structure and function in living things
3. New cells are produced from existing ones |
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Term
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Definition
-cells that contain nuclei
-generally larger and more complex
-have many organelles
-FOUR KINGDOMS
1-Protista
2-Fungi
3-Animalia
4-Plantae |
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Term
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Definition
-dont have nucleus, instead have a nucleoid
-lack most organelles
-simplier cells
2 KINGDOMS-(monerans)
1-Archeabacteria
2-Eubacteria (bacteria and blue-green algea/ cyanophyte) |
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Term
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Definition
common structures in a cell
act like "organs" |
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Term
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Definition
-portion of cell outside nucleus
-works with nucleus |
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Term
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Definition
- contains nearly all the DNA in the cell
- has coded instructions for making proteins+other imp. molecules
- surrounded by cytoplasm
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Definition
- encloses cell
- composed of 2 membranes
- pores let nutrients, information, and RNA flow
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Term
| chromatin and chromosomes |
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Definition
Chromatin-
-granular material in nucleus
-made up of DNA bound to protein
Chromatin is spread throughout the nucleus and when the cell divides,
it condenses to CHROMOSOMES
Chromosomes-
-distinct threadlike structures
-contain genetic info tah is passed on from one generation of cells to the next
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Term
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Definition
-small particles of RNA and protein found in cytoplasm
-they make protein following instructions from nucleus |
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Term
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Definition
small dense region in the necleus
*where productoin of ribosomes begins* |
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Term
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Definition
-function of golgi apparatus is to modify and sort proteins from endoplasmic reticulum for storade or distibutation
-looks like a close stack of membranes
-where proteins go after endoplasmic reticulum |
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Term
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Definition
-clean up crew of the cell
-small organelles ofilled with enzymes that breakdown lipids(fats), carbs, and proteins into smaller molecules that can be use by the cell
-clears junk that could acculmulate in a cell |
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Term
| microtubles and microfilatments |
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Definition
provide support for the cell
help the cell to move |
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Term
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Definition
-store materials in cell
-store water, salts, proteins and carbs
plant cells.....one large vacuole filled with liquid....support for flowers and leaves in the plant
some animals have them......paramecium has contracting vacuole |
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Term
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Definition
-nearly all eukaryotic cells contain them
-organelles that convert the chemical energy stored in food into more useful forms for the cell |
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Definition
| what plant cell walls are made of |
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Definition
small pores in plant cell walls |
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Definition
- green
- in plant cells
- absorb the sun's chemical energy and preform photosynthesis
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Term
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Definition
-whitish color
-store starch and lipid and protein
PLANT CELL |
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Term
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Definition
supporting structure in cell
made of microtubles and microfilaments |
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Term
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Definition
IMP. role in cell division
actually tear apart chromosomes in mitosis |
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