fertilisation

• what is the first step of plant fertilisation

  pollen tube grows out of pollen grain and down through the style
• what is the second step of plant fertilisation

  pollen nucleus (DNA stored here) moves down the pollen tube
• what is the third step of plant fertilisation

  pollen nucleus joins with ovule nucleus
• what is the last step of plant fertilisation

  fertilisation takes place and a seed forms
• what happens during fertilisation overall

  the male and female gametes are fused together - fuses nuclei - to forms a zygote
• what is a zygote

  the singular cell formed after fertilisation
• how do you know when fertilisation has occurred

  when the pollen from the anther is stuck on the stigma
• what is in each pollen grain

  the male pollen nucleus
• what is in each ovule

  the female ovule nucleus
• what happens to the ovule after fertilisation

  the ovule grows a seed
• what happens to the flower after fertilisation

  most of the flower withers and dies
• how does pollen get to the egg

  the pollen goes down the pollen tube and straight to the egg - the pollen grain travels down to the ovary and fertilises the egg
• what happens when the ovary matures

  it forms a fruit and the ovule becomes a seed
• if an ovary forms a fruit when it matures, how does this reflect fruits

  all fruits are ripened ovaries
• what is an examples of a fruit with seeds

  apples - they have the core in the middle which is an ovary of a flower
• where are seeds in a fruit

  the ovary
• how do seeds taste like in comparison to the fruit itself

  for example, an apple is sweet but its' seeds are bitter
• how do seeds eat

  they have large food stores that gives them food
• why do seeds have large food stores

  they can't make their own food because they haven't grown into a plant yet so they need as much food as they can get from it
• what is the labels of the diagram of a seed

  food store, leaf, seed coat and embryo

  
• what is the seed coat

  the exterior of the seed, it protects the seed itself and is bitter and hard
• what are the three things that plants need to go

  water - seed sells and embryo starts growing

  oxygen - respiration and energy

  warmth - speeds up reactions and germination
• what is the first step of the growth of a plant

  the seed cracks and embryo breaks out and seed starts absorbing water
• what is the second step of the growth of a plant

  small shoot and roots start to form and make out of the seed
• what is the third step of the growth of a plant

  roots and shoots travel further and absorbs water and spreads out
• what is the last step of the growth of a plant

  leaves and roots fully grown and can now do photosynthesis