1) Auxins are a) The blood of plants b) Plant hormones c) Pollen grains d) Chemicals which make plants go yellow 2) A response to a stimulus in plants is called a a) Response b) Effect c) Tropism d) Affect 3) Responding to light is called a) Geotropism b) Phototropism c) Hydrotropism d) Positive 4) The way that a shoot responds to gravity can be described as a) Positively geotropic b) Negatively geotropic c) Positively phototropic d) Negatively phototropic 5) The shoot and root ___ produces auxins a) Stem b) Leaf c) Tip d) Flower 6) If the tip of a shoot is removed then what happens? a) It dies b) It grows faster c) It stops growing d) It gets a fungal infection 7) Auxins move by a) Diffusion b) Swimming c) Muscular contraction 8) Light auxins build up on which part of the shoot? a) Shaded side b) Lit side c) Under side d) Upper side 9) Gravity auxins build up on which part of the root? a) Lit side b) Shaded side c) Upper side d) Under side 10) Light auxins ________ growth a) Inhibit b) Promote 11) Gravity auxins ________ growth a) Inhibit b) Promote 12) Growth occurs in plants because of a) Cells division b) Cell elongation c) Both of these
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Auxins
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Jacqueline2
KS4
Science
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