Stem Cells And Uses Of It

Question 1

Some cells are

Answer 1

Undifferentiated, have not become specialised , this means they can divide to make different type of cells, CALLED STEM CELLS

Question 2

Where are stem cells found

Answer 2

Human embryos, umbilical cord of new Borns, some organs and tissues

Question 3

What’s are embryonic stem cells

Answer 3

Stem cells from human embryos, can make all type of cells

Question 4

Where are adult stem cells found

Answer 4

Organs and tissues, so a bone marrow

• only can make certain types of cells
• capacity to divide its self is limited

Question 5

How can stem cells be useful

Answer 5

• treating conditions where cells are damaged or not working properly eg paralysis
• can replace damaged cells

Question 6

What is therapeutic cloning

Answer 6

• a cloned embryo of a patient may be used as a source of stem cells
• STEM CELLS FROM CLONED EMBRYOS ARE NOT REJECTED FROM PATIENT’S BODY, USEFUL

Question 7

Concerns of stem cells and cloned embryos

Answer 7

• risks such as viral infections

- Ethical or religious objections

Question 8

Where are stem cells found in plants

Answer 8

• MERISTEMS
• these allow plants to make new cells for growth
• can produce clones of plants easily

Useful as rare species can be cloned to protect from extinction