How do cells make new cells?

Do You know: What happens when you cut a worm

in half?Why do you think you can grow new

skin over a cut on you hand but you can’t grow new fingers?

What is reproduction?

Reproduction is the process by which organisms produce more of their own kind.

• Think about it – Without reproduction, all life on earth would no longer exist.

What is Asexual Reproduction?

• Only one parent is involved.• Offspring are genetically identical

to their parents.• All cells that come from a single

cell are genetically identical to it and to each other; they are all clones.

1.1.MitosisMitosis - is the exact duplication of the nucleus of a cell so as to form two identical nuclei during cell division.

Types of Division during Asexual Reproduction

2.2.Binary FissionBinary Fission –

Many, but not all, single-celled organisms (unicellular), such as bacteria, and protists, reproduce asexually through binary fission.

Types of division during Asexual Reproduction

Such Protists include, amoeba’s and paramecium.The nucleus divides by mitosis and the cytoplasm divides, forming 2 new daughter cells of equal size.

Binary Fission

3.3.BuddingBuddingSome cells split via budding (for example baker's yeast), a. The buds grow into fully

matured individuals which eventually break away from the parent animal

Types of Asexual Reproduction

• Seen Mostly in Marine Animals and Yeast– Examples Include; Sponges, Corals and

Jellyfish…

Budding in Hydra

4.4. Vegetative PropagationVegetative Propagation – found in plants where new independent individuals are formed without the production of seeds or spores

Example – fragmentation, where small fragments of the plant develop into a new plant

Types of Asexual Reproduction