Differentiation & Growth

Question 1

What are Stem Cells?

Answer 1

Are Undifferentiated Cell that can be Differentiate Into Specific Cells

Question 2

Where are stem cells found?

Answer 2

Bone Marrow
Embryos
Growing Points Of Plants

The Blood In Umbilical Cord Is Rich With Stem Cells.

Question 3

What are the ethical concerns with Stem Cells?

Answer 3

The Embryo is Destroyed
Need Abortions to Get Bone Marrow
The Embryo is Grown In Laboratories

Question 4

Why are stem cells in embryo better than in adults?

Answer 4

Stem Cells In Embryos are Better than in Adults As They Are Younger.

Question 5

What do most living things start off as?

Answer 5

Zygote

Question 6

Give three points on animals growth?

Answer 6

• All regions of the body
• Certain size then stops
• Compact Growth

Question 7

Give three points on Plants growth?

Answer 7

• Meristems - tips of roots & shoots only grow
• Usually grow throughout there lives
• Spreading branches etc.

Question 8

What is the purpose of animal growth?

Answer 8

• Stop growing to save energy for movement

- Greater variety of organs

Question 9

What is the Purpose of Plant growth?

Answer 9

• Light & water is needed
• Greater surface area for absorbing light
• Parts of plants are eaten so need to regrow