changes within organisms lifetime &reproduction

• Plant cells have cell wall, vacuole and chloroplasts but animal cells don't
• Nucleus


  Controls cell activity
• Cell division

  1. Splitting of a parent cell

  2. Formation of two genetically identical daughter cells
• Genome of organisms must be replicated in order to make genetically identical daughter cells
• The cell needs to grow in size to account for this during cell division
• Cell division

  Precedes growth and repair
• cell division

  the splitting of a parent cell into two usually genetically identical daughter cells
• for cell division the genome & organelles must be replicated
• in order to make genetically identical cells during cell division the cell needs to grow in size
• mitosis?


  cell division for growth and repair
• Parent cell doubles everything
• the male parts of a flower are called the stamen and the female parts are called the carpel
• the stamen consistsof the:

  • stamen
  • filament
  • petal
• the carpel consists of the ovary stigma and style
• What are the two main parts of a flower involved in reproduction?

  Carpel and Stigma
• Where is the male gamete made and where is it found?

  In the anther and it’s found inside the pollen grain
• What is the female gamete called?

  Ovule
• What is the purpose of pollination?

  To produce offspring for the next generation
• How do plants produce offspring?

  By making seeds
• What do seeds contain?

  Nutrition and genetic instructions to grow into an adult plant
• What are the two types of pollination?

  Self-pollination and cross-pollination
• What happens during self-pollination?

  The pollen grain lands on the same flower it originated from
• What occurs during cross-pollination?

  The pollen grain lands on a different flower than the one it originated from
• What are two agents that can carry pollen grains?

  Wind and insects
• What is fertilization in plants?

  The fusion of nuclei from a male and female sex cell
• Where is the male gamete located in plants?

  Inside the pollen grain
• Where is the female gamete located in plants?

  Inside the ovule
• What is the first step in the fertilization process?

  A pollen tube grows out of the pollen grain and down through the style
• What happens after the pollen nucleus moves down the pollen tube?

  It fuses with the ovule nucleus
• What is the final outcome of fertilization in plants?

  A seed will form
• What is the style in relation to the pollen tube?

  The style is the structure through which the pollen tube grows
• What role does the pollen nucleus play in fertilization?

  The pollen nucleus fuses with the ovule nucleus
• What happens to seeds after fertilization?

  Seeds develop from the fertilized ovule