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Review All|
5 things that animals and plant cells both have |
Nucleas. Cytoplasm. |
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What is only in PLANT cells (3) |
Cell wall (cellulose - strength) |
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What is diffusion |
Random movement of molecules from hight to low concentration. No energy needed |
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What are the two processes for something to move in and out of cell |
Diffusion (no energy) |
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2 Growth things needed from soil |
Nitrates (for amino acids) (stunts) |
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6 uses for glucose in plant |
1) Respiration (energy for others) |
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How make food production more efficient? |
Crops - not grazing ANIMALS! |
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3 examples of diffusion in living cells |
1) Carbon dioxide into actively photosynthesising plant cells |
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What is osmosis |
Movement of water across semi-permeable membrane from dilute to more concentrated. Energy |
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Photosynthesis word equation? |
Carbon dioxide + Water = (light + energy) Glucose + oxygen |
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Give 3 specialised cells |
White blood |
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What is it called when cells develop to carry out a particular job |
Differentiation |
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What is a monoculture |
One particular type of crop year on year |
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Three minerals needed by plants |
Magnesium |
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Micoroganisms bring back decayed material. What conditions do they like |
Warm, moist, plenty of oxygen |
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What is returned to the atmosphere when animals respire |
carbon dioxide |
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What does protease convert to what |
Proteins to amino acids (i.e. breaks down for later rebuilding) |
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what does lipase convert to what |
Fat to glycerol a d fatty acides |
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Why are enzymes useful in industrial processes |
Speed up reactions without need for high temperatures or pressures |
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Why does using enzymes in industrial processes cause problems |
waste that has to be washed away |
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how do animals adjust water content |
Lost in urine, sweat and breathing out |
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What causes diabetes. What happens in it |
Pancreas not producing enough insulin |
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How to control your diabetes? |
Control diet carefully |
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Banting and Best thought of injecting insulin for diabetes. Got from where |
First dogs and pigs |
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What does a gene do |
Gives instructions to make (particular) proteins |
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What is DNA (genetic) fingerprinting? |
Cutting up persons DNA into small sections and separating them. Look at pattern. Eg parentage checks |
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How can stem cells cure anything? |
They can replace faulty or missing cells |
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Where do stem cells come from (apart from embyos) |
Bone Marrow |
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If parents genes are |
BB, Bb, Bb, bb |
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Ff + Ff |
FF normal |
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Huntingtons is a dominant |
Nn sufferer |
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How is genetic screening done? |
Fertilise in laboratory, implant |
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Against embryonic (genetic) screening? |
Fashion designing babies |
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In favour of embyonic (genetic) screening |
Stop suffering |
