What is a stem cell?

A stem cell is an undifferentiated cell, capable of becoming any other type of cell.

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Name the two main types of animal stem cells.

1Embryonic stem cells.


2Adult stem cells.

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What are the two main features of stems cells?

1They can divide by mitosis to form more cells.


2They can differentiate into different types of specialised cells.

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Where are embryonic stem cells found?

In the embryo, which is formed when a sperm cell fertilises an egg cell. 

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Where in the body are adult stem cells found?

Adult stem cells are found in the bone marrow.

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What is the main difference between adult and embryonic stem cells?

Adult stem cells can only differentiate into a narrow range of specialised cells (e.g. only types of blood cells).


Embryonic stem cells can differentiate into any type of cell.

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What do we call the plant tissues that are continually growing, and that contain stem cells?

Meristem tissue. Found in the tips of the roots and shoots.

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In which stages of their life do plants have stem cells?

Plants have stems cells throughout all stages of their life.

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