Differentiation & Growth Flashcards
1
Q
What are Stem Cells?
A
Are Undifferentiated Cell that can be Differentiate Into Specific Cells
2
Q
Where are stem cells found?
A
Bone Marrow
Embryos
Growing Points Of Plants
The Blood In Umbilical Cord Is Rich With Stem Cells.
3
Q
What are the ethical concerns with Stem Cells?
A
The Embryo is Destroyed
Need Abortions to Get Bone Marrow
The Embryo is Grown In Laboratories
4
Q
Why are stem cells in embryo better than in adults?
A
Stem Cells In Embryos are Better than in Adults As They Are Younger.
5
Q
What do most living things start off as?
A
Zygote
6
Q
Give three points on animals growth?
A
- All regions of the body
- Certain size then stops
- Compact Growth
7
Q
Give three points on Plants growth?
A
- Meristems - tips of roots & shoots only grow
- Usually grow throughout there lives
- Spreading branches etc.
8
Q
What is the purpose of animal growth?
A
- Stop growing to save energy for movement
- Greater variety of organs
9
Q
What is the Purpose of Plant growth?
A
- Light & water is needed
- Greater surface area for absorbing light
- Parts of plants are eaten so need to regrow
