Plant Reproduction

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  • Created by: GGB2016
  • Created on: 21-06-16 17:17

1. What is a disadvantage of self pollination?

  • There's a lack of variation, decreasing the chance of survival
  • Variation increases within individuals
  • Energy consumption is high as many gametes must be produced
  • Favourable gene combinations are retained
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Other questions in this quiz

2. What becomes the testa?

  • Outer integument
  • Ovary
  • Embryo sac
  • Fertilised ovule

3. What is the function of the tube nucleus?

  • Fuses with the ovary to form the testa
  • Fuses with the micropyle to form the fruit
  • Fuses with 2 nuclei in the ovule to form the endosperm
  • Fuses with a sperm nuclei to form the egg

4. What becomes the fruit?

  • Embryo sac
  • Outer integument
  • Ovary
  • Fertilised ovule

5. What is the function of the generative nucleus?

  • Divides by mitosis to form sperm nuclei
  • Controls growth of the pollen tube
  • Divides by meiosis to form egg cells
  • Forms the endosperm

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HonorPoulton

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There are some errors in here, the Tube nucleus in the pollen grain controls the growth of the pollen tube before disintegration.

It is the generative nucleus which consists of the two male nuclei. One of these fuses with the polar nucleus to form the triploid endosperm tissues which will become the endosperm and the other fuses with the oosphere to divide by mitosis to become the embryo.

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