Science test review paper 1. Photosynthesis . Photosynthesis is a Procedure where the production of water and glucose is made by reacting Carbon dioxide and water, using the energy from the sun. . Plants often change some of the glucose into starch for storage. . Glucose is a type of sugar that belong to a group of chemicals known as Carbohydrates. 2. Mineral salts for plants . Fertilizers are substance that contain mineral salts that are use for making plants grow stronger and healthy. . Nitrate is a mineral salt that plants absorb through their roots and they are needed so plants can make protein and chlorophyl. (Lack of nitrate makes plants yellow instead of green.) . Magnesium is a mineral salt that plants need to make chlorophyl. (Lack of Chlorophyl makes plants leaves green.) 3. Plants and water . Plants need water for support, cooling, transport and photosynthesis. 4. Pollination . Pollination is the transfer of pollen from an anther to a stigma. . There are 2 types of pollination which are cross pollination and selfpollination. . The male gametes are in the pollen grains. 5. Fertilisation . Fertilisation is when the male gamete and the nucleus of the female gamete join together. . Process of fertilisation is first the pollen grain lands on the stigma, then it grows a tube down to the ovule and the male gamete (Nucleus) fuse with the female Nucleus in a ovule, producing a zygon, then the zygote divides over and over again to produce a embryo plant then the ovule becomes a seed. 6. Fruits . The ovaries develop into fruits after fertilisation. . Seeds dispersal helps to avoid competitions with parent plant. 7. Flowers . Flowers are the reproductive organs of a plant. . The female part of a flower are the style and stigma while for the male is the stamen (Anther, Filament). . Petals have bright colors and strong scent to attract insects and birds. . Nectar is the sweet sugary substance that flowers produce.