Other questions in this quiz

2. What becomes the testa?

  • Fertilised ovule
  • Outer integument
  • Embryo sac
  • Ovary

3. Which one of these does the embryo not consist of?

  • Cotyledons
  • Ovule
  • Radicle
  • Plumule

4. What is a disadvantage of self pollination?

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

5. What is pollination?

  • The transfer of pollen from anther to stigma
  • The production of CO2 in a plant
  • The transfer of pollen from stigma to anther
  • The production of an egg cell

Comments

HonorPoulton

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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