Cellular Organisation Flashcards
The structure of the plasma membrane is referred to as….
The Fluid Mosaic Model
Defines the external boundary of the cell
Plasma Membrane
The plasma membrane is mainly made up of
Phospholipids and Proteins
The two main fluid components of the body, which the plasma membrane separates
Intracellular and Extracellular Fluid
What faces out, on the plasma membrane
Phospholipid head (polar)
Is the tail of the phospholipid polar or non polar?
Non Polar
The kind of barrier that is formed by the two layers of phospholipids
Hyrophobic
Name the structural support molecules, that anchor the cell together, allow selected molecules to cross the membrane, allow transfer of signals across the membrane or catalyse chemical reactions
Proteins
Name the 4 major components of cells
Plasma membrane, cytosol (fluid), cytoplasmic organelles, nucleus
Which cellular organelle is the control centre of the cell, that contains DNA
Nucleus
How could cytosol be easily explained?
Fluid within the cell, suspends organelles, contains enzymes for chemical reactions. The site of most cellular activity!
The power plan of the cell that can also divide to reproduce.
Mitochondria
What are the 2 types of endoplasmic reticulum?
Rough and Smooth
The ER has ribosomes in its surface, principally important for protein and plasma membrane synthesis
Rough ER
The ER doesn’t have ribosomes.
Smooth ER
