biology - cells, tissues, and organs 0.0 / 5 ? BiologyCells, tissues and organsGCSEAQA Created by: abbeyhuttonCreated on: 01-04-15 16:23 in which part of the cell is energy released during respiration? mitocondria 1 of 34 why is it possible to see a bacterial colony but not a single bacterium? one bacterium is very tiny but many bacteria massed together in a colony can be seen 2 of 34 why do muscle cells need lot of mitochondria? mitochondria release energy which muscles need for movement 3 of 34 what determines net movement of particles across a cell membrane? the concentration on each side of the membrane 4 of 34 what do glandular tissues produce? enzymes and hormones 5 of 34 where is soluble food absorbed? small intestine 6 of 34 where does the energy for photosynthesis come from? sunlight 7 of 34 why do enzyme reactions slow down? when the temperature falls enzymes work slower 8 of 34 what is meant by the term 'dependant variable'? the variable that is being measured 9 of 34 name three substances used for storage in plants starch, fats and oils 10 of 34 what factors must be controlled in a greenhouse to improve plant growth? light, temperature and carbon dioxide 11 of 34 why are there so few animals living in cold regions such as the arctic? very few plants grow there, and the ones that do are small so there's very little food for animals 12 of 34 what is a quadrat? a square frame which may be divided into a grid 13 of 34 what re proteins made out of? amino acids 14 of 34 what is meant by denatured? the enzyme changes shape and stops working 15 of 34 which enzyme digests starch? anylase 16 of 34 where is bile produced? in the liver 17 of 34 which enzyme is used to convert glucose into fructose? iosmerase 18 of 34 where does aerobic respiration take place? in the mitocondria 19 of 34 which sugar is needed by the muscles for aerobic respiration? glucose 20 of 34 which type of cell division produces two identical calls from one original cell? mitosis 21 of 34 what type of cells are produce by meiosis? sex cells/gametes such as eggs and sperm 22 of 34 where are stem cells found in an adult human? bone marrow 23 of 34 which scientist worked out how characteristics are in inherited? Gregor mendel 24 of 34 which chromosomes are found in human males? x and y 25 of 34 what is meant by the term phenotype? this is the description of the physical characteristics 26 of 34 name a genetic disorder which is controlled by a dominant gene? polydactyly 27 of 34 what is embryo screening? tests that are carried out on the embryo to diagnose possible disorders 28 of 34 name a hard part of an animal which will not decay easily? bones, teeth, shells or claws 29 of 34 why are some fossils destroyed over time? due to geological activity which breaks them up or wears them down 30 of 34 how can a new predator cause extinction of a species? its eats all the animals 31 of 34 suggests another factor which could have caused the dinosaurs to die out? a new disease being introduced into the population 32 of 34 how do populations become isolated? islands breakaway from the mainland, new rivers from, mountain ranges or craters separate them. 33 of 34 what is meant by genetic variation? the wide range of alleles that control the characteristics in a population 34 of 34
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