The Structure Of Cell Membranes Flashcards
What is the fluid mosaic model?
Theory of cell membrane structure with proteins embedded in a sea of phospholipids.
What is a glycoprotein?
A protein with a chain of carbohydrate molecules attached to it.
What are the roles of membranes? ( seven )
Separates cells components from its external environment.
Regulates transport of materials.
May contain enzymes involved in metabolic pathways.
Has antigens so body recognises it as itself.
May release chemicals that signal to other cells.
Contains receptors for chemical signals.
May be the site of chemical reactions
What do eukaryotic cell membranes contain to maintain the fluidity?
Cholesterol
What is the function of a glycocalyx (carbohydrate molecule chain)?
To attract water so that the cell can interact with dissolved solutes and it’s watery environment.
