b4 a-d pig (f). name the pores in the bottom of a leaf
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B4 a-d Pig (F)B4 a-d Pig (F)
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Name the pores in the bottom of a leafName the pores in the bottom of a leaf
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StomataStomata
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What is the job What is the job of air spaces?of air spaces?
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Allow gases to diffuse from palisade Allow gases to diffuse from palisade cell to air/air to palisade cellcell to air/air to palisade cell
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List 3 adaptations List 3 adaptations of a leaf for of a leaf for efficient efficient photosynthesisphotosynthesis
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Broad (large surface area)Broad (large surface area) This (short diffusion distance)This (short diffusion distance) Palisade cells have many Palisade cells have many
chloroplasts (containing chlorophyll)chloroplasts (containing chlorophyll) Veins bring water/remove sugarVeins bring water/remove sugar Stomata allow carbon dioxide Stomata allow carbon dioxide
in/oxygen outin/oxygen out
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What is osmosisWhat is osmosis
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Diffusion of water Diffusion of water from a high water from a high water concentration to a concentration to a low water low water concentration concentration across a partially across a partially permeable permeable membranemembrane
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What is a partially permeable What is a partially permeable membrane?membrane?
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A membrane that A membrane that only lets certain only lets certain (small) molecules, (small) molecules, like water, throughlike water, through
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What will happen What will happen to a red blood cell to a red blood cell if you inject pure if you inject pure water into your water into your veins?veins?
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Water will enter the cell by osmosis until it Water will enter the cell by osmosis until it burstsbursts
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What do you call a plant cell that has lost What do you call a plant cell that has lost a lot of water by osmosisa lot of water by osmosis
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Flaccid/plasmolysedFlaccid/plasmolysed
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Name tube ZName tube Z
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PhloemPhloem
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What is the job of phloem?What is the job of phloem?
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Transporting sugars around the plantTransporting sugars around the plant
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What is this What is this device called device called and what is it and what is it for?for?
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PotometerPotometer Measuring water uptake (allow Measuring water uptake (allow
transpiration)transpiration) in a plantin a plant
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What is transpiration?What is transpiration?
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Loss of water vapour from the leavesLoss of water vapour from the leaves
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List 2 ways of increasing the rate of List 2 ways of increasing the rate of transpirationtranspiration
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Increase temperatureIncrease temperature Increase wind speedIncrease wind speed Decrease humidityDecrease humidity Increase light intensityIncrease light intensity
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List 4 minerals needed by a plantList 4 minerals needed by a plant
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NitrateNitrate PhosphatePhosphate PotassiumPotassium MagnesiumMagnesium
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Why does a plant Why does a plant need magnesium?need magnesium?
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To make chlorophyll (for To make chlorophyll (for photosynthesis)photosynthesis)
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What will a plant What will a plant look like if it is look like if it is grown with very grown with very little nitrate?little nitrate?
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smallsmall
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How do minerals How do minerals enter a root hair?enter a root hair?
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Active transportActive transport
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