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B2.2 Growth and differentiation - Coggle Diagram
B2.2 Growth and differentiation
Differentiation in animal cells
In early development of plants and animal embryos, Each one of these are know as stem cells and they can become any type of cell that is needed
Many cells differentiate very early on in life
Specialised cells can divide by mitosis
Some differentiated cells cannot be divided. E.g. Red blood cells
In a mature animal. Little or no growth takes place and cell division is almost entirely restricted
Differentiation in plant cells
Plant cells can differentiate throughout their lives
Mitosis constantly takes place in the meristems
Plants grow all throughout their lives
Differentiation is not permanent in plant cells but it is in animals
Cloning plants
Producing identical offspring
It is difficult to clone animals because most animal cells cannot continually differentiate
Need a small piece of leaf tissue to constantly undergo mitosis to form a new plant
Key points
In plant cells, mitosis takes place throughout life in the meristem found in the shoot and root tips
Many types of plants cells retain the ability to differentiate throughout their lives
Most types of animal cell differentiate at an early stage of development