Molecular Biology

Membrane lipids are _____ molecules meaning the have both a hydrophobic and hydrophilic end

the membrane ______ are embedded in the layer and perform most of the other functions of the membrane.

3 classes of membrane lipids
1) _______(majority)
2)________
3)________

Is the phospholipid tail is a kink, this kink occurs becuase of a _______ _______

4 major types of phospholipids include;
1)
2)
3)
4)

The is the only type of cell with no cholesterol in their cell compostion

Some eukaryotic membrane lipids are _______ with oligosaccharides on the _________ side of the membrane

This molecule is ampipathic, contains a polar head (-OH), and contains a steroid ring structure

Cholesterol ________ the ability of the lipid bilayer to act as a ________ barrier to small _______ substances

True/false(make true) : lipids can only pack into the bilayer method as in membranes.

True/False (make true): Spontaneous aggregation to spherical shape is energetically favorable

Lipids move freely in the bilayer: Name the most and least common movements of the 4 possible.

Fibroblasts can accumulate fat droplets and transform the cell into a ______

True/false (make true): the lipid bilayer is symmetrical

The type of phospholipid faces the cytosol and has a negative charge

Glycolipids face the ________ leaflet

the molecules perform the specific functions of the plasma membrane

MOST membrane proteins are _________________ (added oligosaccharide); termed a ________

This part of the membrane on the ________ side is known as a glycocalyx

Which side of the membrane contains NO oligosaccharides on the molecules

the carbohydrate layer funtions for 2 ;
1)
2)

_____ _____ between the apical plasma membrane (lumen of small intestine) and lateral plasma membrane restrict lateral diffusions of lateral ______

There are _ mechanisms that restrict lateral diffusion of proteins. These restrictions function to _______________________________________________