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B4 Revision Cards

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
show The variety of different species living in a habitat.  
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What is the difference between an ecosystem and a habitat?   show
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show A population is all the organisms of the same kind living in the same place, a community is all the populations living in one place.  
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show Natural ecosystems like native woodlands and lakes.  
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What is the word equation for photosynthesis?   show
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How is glucose stored in plants?   show
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When do plants carry out respiration?   show
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Give four ways plants use glucose.   show
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Name the limiting factors of photosynthesis   show
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show It is insoluble in water and does not affect the concentration of a cell. It will not affect osmosis.  
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show Broad, thin, waterproof transparent epidermis top layer, stomata to allow CO2 to enter, a palisade layer with lots of chloroplasts to absorb light.  
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Give a definition of diffusion   show
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show When there is a shorter distance, a greater concentration gradient and a greater surface area.  
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Give a definition of osmosis   show
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How does osmosis affect a plant cell?   show
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show It would absorb water and burst as RBCs do not have a cell wall.  
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show Carbon dioxide, the oxygen in water is released by the plant as a product of photosynthesis.  
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Four factors that increase the rate of transpiration.   show
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show For cooling a plant, photosynthesis, support and movement of minerals.  
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show The evaporation and diffusion of water out of leaves.  
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How is a leaf adapted to reduce water loss?   show
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Four minerals in fertilisers.   show
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show To make proteins for growth and repair.  
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How do plants take in minerals at their root hair cells.   show
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show They are long and have a large surface area for absorption.  
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List four factors that are important in decay.   show
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show Canning, cooling, freezing, drying, adding salt or sugar and adding vinegar.  
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show chemical reactions within cells that require energy released by respiration  
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show it is where a molecule has to be the correct shape to be able to fit into the active shape of an enzyme  
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show it will denature  
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show they speed up chemical reaction  
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show they make them according to the instuctions carried in genes  
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show if it only a little higher it can speed up the reaciotn  
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enzymes need an optimum   show
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show light energy absorbed by the chemical chlorophyll,energy used to bring about the reaction between carbon dioxide (co2) and water (h2o) to produce glucose (c6h12o6), oxygen (o2) produced as a waster product  
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show starch for storage  
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show from plant roots to make some chemicals needed by the cells  
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show diffusion  
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show A transect is line across a habitat or part of a habitat. It can be as simple as a string or rope placed in a line on the ground. The number of organisms of each species can be observed and recorded at regular intervals along the transect  
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what reactions to living organisms need that have released by respiration   show
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show c6h1206+6o2=6co2+6h2o glucose+oxygen=carbon dioxide+water  
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anaerobic respiration in animals   show
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anaerobic respiration in plant cells   show
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what it the structure of a typical animal and microbial cell limited to?   show
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show it contains an enzyme for aerobic respiration  
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