Please enable JavaScript.

Coggle requires JavaScript to display documents.

u6 (b2, b7, b8, b4, b3, b1) - Coggle Diagram

- - - - tihis is not very likely so they produces more pollen
  - - - it is called cross-polination if a a bee goes from one flower and get pollen there and the go to a other flower and gets it on the stamen
    - - it is called self-polination when the pollen of a flower lands on the carpel of the same flower
  - - - a single insect can polinate multiple flowers
  - - - nectar is a sweat juice that atracts insects
      - the bees collect nectar and use it for making honey for their ofspring
        
        the bees often get covvered in pollen
        
        when the bee is done with a flower it has pollen al over it and it drops on the next flower
- - - - when eating the pulp enters the stomach but not the seed so the seed drops while flying
        
        if it is favourable if the seed germinates in the air
    - - they can get stuck on animals and later be brushed of
      - they can get onto the sole of a shoe of a human and later be dropped of somewhere else
  - - - those fruits also have seed in it
  - - - the fruit of the cranesbil scatter open when the are ripe this is done with enough force to get the seeds some distance from eachother
- - - - male flower
    - - female flower
  - - - if it has this it is called a catkin
        
        the catkins with stamens are called male catkins
      - the catkins with carpels are female catkins
- - - - seeds
        
        many seeds are edible
        
        each seed requirs an egg cell that has fused with a pollen grain
        
        seeds have reserve food for the seedling that can develop from the plant embryo
        
        this can also be food for animals
  - - - fruit
        
        the pulp of many fruits is edible
        
        some contain a single seed or more
  - - - only the ovules in the ovary that have been fertilized grow into seeds
        
        the seeds are in the fruit
      - the ovules that did not get fertilized just shrivel away
        
        then the ovary grows bigger and becomes a fruit
- - - - when a pollen grain ends up on the stigma of the same species it grows a tube
        
        pollen tube
        
        the pollen tube grows down to the ovule
        
        pollen tubes grow ate the same style and time
        
        they wil grow towards different ovules
        
        the egg cell in the ovules can all be fertelized
        
        every egg cell can develop into a seed
        
        1 more item...
        
        when the tube reaches the ovule the tube breaks open
        
        the nucleus of the pollen tube penetrates the egg cell and fuses with the nucleus of the egg cell
        
        this fusion is called fertilization
        
        fertilization prduces an embryo
        
        the nucleus of a plant ambryo
        
        1 more item...
        
        after the embryo starts to grow
        
        a plant embryo grows by cell division
        
        3 more items...
- - - - the function of a plant organ
    - - white part
        
        corolla
        
        petals
        
        lrge and strikingly coloured
        
        the function of petals is to atract insects to polinate them
        
        in other plants such as grasses these are small and green
        
        the petals may also be fused or seperate
      - green part
        
        calyx
        
        sepals
        
        green
        
        in some plants these are grown together
        
        then they are fused
        
        the calyx protects the flower against cold and dehydration
    - - carpel[or pistil]
      - stamens
        
        the male reproductive organs
        
        mad up of filaments
        
        made up of an anther
        
        consists of pollen sacs
        
        where pollen is produced
        
        pollen is very smal particles
        
        it is called pollen grains
        
        it is the male sex cells of a plant
        
        when pollen sacs open pollen grains are released