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Biology- Cell NCEA Level 2 Flashcards

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358854409RespirationThe breakdown of glucose to form ATP when oxygen is available.1
358854410Respiration (equation)C6H12O6 + 6O2 --> 6CO2 + 6H2O + ATP2
358854411DiffusionMolecules move from a high to low concentration gradient. It is slow but does not require energy.3
358854412CiliaTiny hair like projections that extend out of the cell membrane. These cili beat in unison to remove particles from our airways.4
358854413ExocytosisExports large molecules out of the cell when a vesicle fuses with the cell membrane releasing its contents outside the of the cell.5
358854414CytoskeletonMicrotubules and microfilaments that are found throughout the the cytoplasm, these give the cell support and maintain the shape of the cell.6
358854415Selectively permeableThe cell membrane allows some molecules through and not others.7
358854416Rough ERER with ribosomes attached. The ER is a network of tubes that run from the nucleus to the cell membrane. Rough ER are commonly found in cells that produce large amounts of protein for export.8
358854417Golgi bodyFive flattened stack of membrane that modify to store and route products to their next destination.9
358854418Golgi apparatusAlternative name for Golgi body.10
358854419MitochondriaOval shaped organelle with highly folded inner membrane. This is the site of aerobic respiration in the cell where most ATP is produced.11
359145380Isotonic SolutionA concentration that is the same as that that found inside the cell. No net movement of water occurs in this situation.12
359145381NucleusContains and protects DNA. It is known as the cells control centre.13
359145382ChloroplastPhotosynthetic organelles that trap sunlight energy and convert it into glucose. They contain grana and stroma.14
359145383CytoplasmA jelly like substance that fills the cell from the cell membrane to the nucleus, it is the site of many cellular reactions.15
359145384Hypertonic SolutionA strongly concentated solution. A cell in this solution would lose water by osmosis.16
359145385Hypotonic SolutionA weak solution. A cell in this solution would gain water by osmosis.17
359145386Facilitated TransportationMolecules move from a high concentration to a low concentration with the help of transport proteins embedded in the cell membrane. Does not require energy.18
359145387Lactic Acid FermentationProduces 2 ATP molecules. Occurs in animal muscle when exercising at a high level.19
359145388Eukaryote CellsThese cells have a true nucleus and membrane bound organelles.20
359145389EndocytosisA method of engulfing large molecules into the cell. The cell membrane surrounds he particle and draws it into the cell in a vesicle.21
359145390Nuclear MembraneDouble membrane with pore to allow large particles in and out of the nucleus.22
359145391OsmosisPassive movement of water across a semi-permeable membrane from an area of high water concentration to an area of low water concentration.23
359145392Plasma MembraneAnother word for cell membrane.24
359145393PhotosynthesisA process in which light energy is converted to chemical energy. The reactants are water and carbon dioxide and the products are glucose and oxygen.25
359145394RibosomesFound in prokaryotes and eukaryotes. These are involved in the making of proteins. They can be free in the cytoplasm or attached to the endoplasmic reticulum.26
359145395VacuolesFound in the cytoplasm, these are involved in transport.27
359145396OrganellePart of a cell with a specific function.28
359145397FlagellaLong whip like projections that extend from the cell membrane. These enable unicellular organisms to move when flicked.29
359145398Active TransportMolecules move from a high concentration gradient to a low concentration gradient against the concentration gradient.30
359145399LysosomesMembrane bound sacs that contain digestive enzymes. These enzymes breakdown molecules and recycle cell parts.31

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