Multicellular Organisms - Stem cells and Specialised cells Flashcards
1
Q
What are stem cells?
A
Unspecialised cells that can divide in order to self-renew
* Have the ability to become different types of specialised cells.
* Involved in growth and repair
* Found in the embryo at early stages
2
Q
What is a specialised cell?
A
Cells adapted to perform specific functions within an organism.
* Do not have the ability to divide
* Can carry out special roles
* No stem cells present to replace them? → part of a tissue or organ remains damaged
3
Q
- What is an organ?
- What is a tissue?
- What is a system?
A
Organ - Structure composed of several different tissues coordinated to perform particular functions
Tissue - Group of similar cells specialised to perform a particular function.
System - Group of organs that work together to perform a particular function
