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31 Cards in this Set
- Front
- Back
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cell
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smallest unit of living matter
structural and functional unit of an organism |
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cell theory
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all cells come from pre-existing cells
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refraction
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light rays bent
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reflection
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light rays bounce off
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nucleus
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the center of the cell that contains the DNA/the genetic material
also the constant communication with cytoplasm |
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structure of bacteria
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bacillus rodshaped
coccus sphere shaped spirillum spiral shaped |
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cell envelope
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cell wall
cell membrane glycocalyx polysaccharides |
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cell wall
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maintains the shape of the cell
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cytoplasm
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semi fluid solution encased by the plasma membrane
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bacteria
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its good because it brakes things down and its bad because it causes sickness and it does not have a nucleus
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cells reproduce
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unicellular splits into two and multicellular splits and the object gets bigger and bigger
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why are cells small?
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if you have one big cell it takes longer because there is less surface area.
if you have a small cell it takes shorter because there is more surface area |
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cells
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prokaryotic cells-lack a membrane around nucleus
simpler and smaller eukaryotic cells- has a nucleus |
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Atom
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smallest unit of a molecule
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molecule
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smallest until of a compound that still had the properties of the compound
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cell
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smallest until of a living thing
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tissue
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A group of cells with a common structure and function
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organ
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composed of a # of tissues and organized for a particular task
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organism
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an individual; complex individuals contain organ system
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popualtion
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several organism of the same kind in a particular area
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community
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interacting populations in a particular area
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Ecosystem
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a community plus the environment
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biosphere
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Regions of the earth's crust, water, and atmosphere inhabited by living things
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type of cells
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~Eukaryotes
- has nucleus - has organelles - specialized - came from prokaryotes - membranes surrounded organelles |
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Prokaryotes
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- simple
- lack nucleus - include bacteria and blue-green algae - first type of cell - contains cytoplasm - cell membrane - no organelles or organelle membrane |
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Cell size
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- surface area/volume ratio becomes to small to handle traffic
- cue for cell division - calculations - area of cube =lenght * height * 6 - volume = b*h+w=cm3 |
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membrane
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- structure of lipid bilayer
- phospholipid - polar ends nonploar middle |
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protein function
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channel
markers receptors |
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Cell structure organelles
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nucleus
Mitochondria Er - smooth - rough vacuole cell memebrane cell wall chloroplasts lysosomes microtubules cytoplasm ribosomes |
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Plant VS. Animal
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plant =
cell wall -large vacuoles - chloroplasts |
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Plant VS. Animal
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Animal =
micro tubules more mitocondria |
