Cells Flashcards
What is a cell?
It is a living structural and functional unit that is enclosed by a membrane.
What are the 3 main parts to a cell?
1) Plasma membrane
2) Cytoplasm – cytosol and organelles
3) Nucleus
What does the cell membrane do?
regulates the flow of materials into and out of a cell to maintain a stable environment for normal cellular activities.
What does the cell membrane play a key role in?
The communication among cells and between cells and their external environment.
What is a cell membrane mostly composed of?
A lipid bilayer, two tail-to-tail layers made up of three types of lipid molecules
What are the 3 types of lipid molecules?
1) Phospholipids
2) cholesterol,
3) glycolipids
What is the function of the cell membrane?
It allows somesubstances to move into and out of the cell butrestrictsthe passage of othersubstances.
Where is Intracellular fluid (ICF)?
Fluid in body cells
Where is Cerebrospinal fluid (CSF)?
surrounds the brain and spinal cord
Where is Extracellular fluid (ECF)?
Fluid Outside the cells
Where is interstitial Fluid?
Between cells in the tissues
Where is Blood plasma?
In the Blood vessels
Where is lymph?
In lymphatic Vessels
What is Solute?
Any material dissolved in a fluid
What is Solvent?
Fluid that dissolves materials
