Biology Unit One 0.0 / 5 ? BiologyOtherSQA Created by: Ashleigh WebsterCreated on: 28-03-13 18:15 Carbon Dioxide Gas that makes dough rise during baking 1 of 30 Yeast Unicellular fungus used in baking and brewing 2 of 30 Cell Wall Made of cellulose fibres and surrounds and supports plant cells 3 of 30 Alcohol Product of anaerobic respiration used as an alternative fuel 4 of 30 Nucleus Controls cellular activities 5 of 30 Maltose Sugar used in brewing of beer 6 of 30 Penicillin First antibiotic isolated and used to fight disease 7 of 30 Cell Membrane Controls entry and exit of materials into and out of a cell 8 of 30 Bacteria Unicellular organism used in yoghurt making 9 of 30 Fermentation Process involved in wine and beer making 10 of 30 Sensitive Describes a microbe which in inhibited by a certain antibiotic 11 of 30 Resistant Describes a microbe which is not affected by a certain antibiotic 12 of 30 Cytoplasm Where biochemical reactions occur in all living cells 13 of 30 Lactose Sugar in milk acted on by yoghurt forming bacteria 14 of 30 Vacuole Sac like structure in plant cells that regulate water content 15 of 30 Lactic Acid Produced by bacterial action on lactose 16 of 30 Anti-biotics Substance which can inhibit the growth of a microbe 17 of 30 Chloroplast Contains chlorophyll for photosynthesis 18 of 30 Selectively Permeable Membrane Structure that allows rapid passage of small molecules. eg - Water but not larger molecules 19 of 30 Hypotonic A solution with a higher water concentration than another solution 20 of 30 Hypertonic A solution with a lower water concentration than another solution 21 of 30 Isotonic Two solutions that are equal in water concentration 22 of 30 Concentration Gradient difference in concentration that exists between two regions, resulting in diffusion 23 of 30 Contractile Vacuole Used by unicellular organisms to remove excess water gained by osmosis 24 of 30 Plasmolysis Shrinking of plant cell contents away from cell walls as a result of excessive water loss 25 of 30 Flaccid Describes plant tissue that has lost water by osmosis and become soft 26 of 30 Diffusion Movement of molecules from a high concentration to a low concentration 27 of 30 Freely Permeable Structure that allows rapid movement of all molecules through it 28 of 30 Turgid Describes a plant cell swollen with water taken in by osmosis 29 of 30 Osmosis Increased movement of water molecules through a selectively permeable membrane to a more concentrated solution 30 of 30
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