biology 0.0 / 5 ? BiologyNervous system, hormones and behaviourGCSEAQA Created by: belovCreated on: 03-05-18 15:09 geotropism roots of a seed always grow downwards due to GRAVITY 1 of 7 phototropism the shoot always grows upwards toward the LIGHT 2 of 7 Auxin pased on to the shaded side of the shoot to help the cells to elongate resulting in the plant tilting towards the light 3 of 7 Hormones Chemical messengers made in the glands and travel through the blood 4 of 7 FSH Causes the egg to mature and tells the ovaries to release oestrogen 5 of 7 Oestrogen Stops FSH being produced and tells the pituitary gland to release LH 6 of 7 LH LH is produced on day 14 and releases the egg causing a period 7 of 7
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