CBS: Cells/Organelles and Biomolecules Flashcards
1
Q
What is a cell?
A
- A semi-independent (or independent if unicellular), living unit within the body containing the mechanisms for metabolism and growth and replication (by division)
- Consists of an aqueous solution of organic molecules surrounded by a membrane
2
Q
What is an organelle?
A
- A subunit within a cell, with a defined structure and performing specific integrated activities
- Some have membranes, others do not e.g. ribosomes
3
Q
What is a tissue?
A
An organised assembly of cells and their extracellular products which carry out similar and coordinated activities within the body e.g. connective, lymphoid
4
Q
What is an organ?
A
An assembly of tissues coordinated to perform specific functions within the body
