Reproduction in Plants 0.0 / 5 ? BiologyDNA and inheritanceIGCSEAQA Created by: Nicole DCreated on: 30-10-13 11:25 Reproduction in Plants 27 questions 1 of 28 What sorts of plants use sexual reproduction? Flowering plants 2 of 28 What sorts of plants use asexual reproduction? Runners / Plants with no flowers 3 of 28 Sexual reproduction involves the fromation of _________. Gametes 4 of 28 The gametes contain ________ of the chromosomes present in every parent cell. Half 5 of 28 Is sexual reproduction a longer or shorter amount of time than asexual reproduction? Longer 6 of 28 Sexual reproduction ensures genetic ________ in the offspring. Variety / Variation 7 of 28 in the stage of pollination, the pollen is taken from the ____(1)____ where it was made to the ____(2)____. 1) Anther ; 2) Stigma 8 of 28 Cross-pollination can be brough about either by the __(1)__ or ___(2)___. 1) Wind ; 2) Insects 9 of 28 If the pollen grain has landed on the right kind of stigma, it begins to grow a ________ _______ down through the style and ovary towards the ovule. Pollen tube 10 of 28 It secretes _________ to digest a pathway through the style. Enzymes 11 of 28 The pollen tube grows into the ovule through a hole called the ___________. Micropyle 12 of 28 The male _______ travel along the pollen tube and into the ovule. Nuclei 13 of 28 Do the male and female gametes have more than one nucleus? Yes 14 of 28 One male gamete fueses with the ____ ______ _______ to form the embryo in the seed. Egg cell nucleus 15 of 28 Another male nucleus fuses with the __________ _________ to form the food store for the developing embryo. Endosperm nucleus 16 of 28 This is a process called _________ ____________. Double fertilisation 17 of 28 After fertilisation, what do each of the following become: 3 things 18 of 28 1. Ovary Fruit 19 of 28 2. Ovule Seed 20 of 28 3. Egg cell Plant embryo 21 of 28 The embryo plant and food store are contained within the ______. Seed 22 of 28 This is protected by a tough outer coat called the ______. Testa 23 of 28 What is the function of the fruit? To protect the seeds inside it until they are ripe and then to help disperse the seeds 24 of 28 Why is the dispersal of seeds important? It prevents too many plants growing close together 25 of 28 If this happens they compete for ___(1)____, ____(2)_____ and _____(3)_____, so none of them grow properly. 1) Light ; 2) Water ; 3) Nutrients 26 of 28 Dispersal also allows the plant to __________ new areas. colonise 27 of 28 What are the 5 ways by which seeds can travel? By wind, animals, water, humans and bursting. 28 of 28
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