1.all cells derived from other cells (cells division) 2.genetic material is found in nucleus (chromosomes DNA) 3. metabollic processes in cytoplasm-respiration, protein synthesis
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what is an ATP molecule for
it is an energy rich molecule done in the mitochondriathat donates energy for synthesis reactions. (energy unit of the cell)
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what does outer membrane of mitchochondrian do
increase the surface area (makes things + space)
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where is golgi apparatus especially found
in the metabolically active cells such as secretory cells
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where are lysosomes produced
smal spherical vesicles. either in the golgi apparatus or the ER
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what is RER
rough endoplasmic rectilum. has ribosomes attached. the synthesised proteins are packed into vesicles.
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what does a plant eukoryote cell have that a animal eukaryote cell doesnt
cell wall around cell membrane. chlorplast(contain chlorphyll) large vacuole compared to small vacuole- which has cell sap,
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3 carbobhydrates absorbed by epithelial cell of small intestine?
glucose, fructose, galactose
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what is different about the bacteria cell
there is no membrane bound organellle inside the cell e.g. mitochondria
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what is a vesicle
a golgi body packaging
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how is active transport different to diffusion?
metabolic energy in ATP is needed -material move against conc gradient so low to high -process very selective with specific substances selected
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define osmosis
movement of water from a region of high water potential to region of lower water potential through a partially permeable membrane
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what is paartially permeable
the cell surface membrane , permeable to water molecules and few other small molecules
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what is water potential
it is the kinetic energy of the water molecules
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importance of osmosis
on animal cells such as red blood cells- red blood cells surround by bloodplasma, each red blood cell contain solutes, we ensure conc of blood plasma is controlled ie we regulate water content
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difference between ATP and faciliated diffusion
no ATP for fac. diffusion as it just goes through pore
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what is the plasma membrane
boundary between cell and env't. functional organelle. can permanently exclude and retain thing. substaces pass through at different rates --- selectively permeable. made of proteins and phospholipids. theories- sandwich and fluid-mosaic model
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Other cards in this set
Card 2
Front
what is an ATP molecule for
Back
it is an energy rich molecule done in the mitochondriathat donates energy for synthesis reactions. (energy unit of the cell)
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