Which part of the cell membrane is nonpolar? How does this property contribute to the function of the cell membrane?

Many esters adhere to the taste/smell receptors in our nasal cavity, and they all give a different taste/smell sensation. Amyl acetate (or more officially pentyl ethanoate) smells strongly like ripe...

plasma membrane is permeable and allows exchange of materials both ways (in and out) and is fluid in nature. whereas skin is keratinized layer and (since keratin is insoluble...

During the inhalation, we inhale the atmospheric air which contains not only the molecular oxygen but nitrogen and several other gases. In alveoli, oxygen has a greater concentration than it...

Kidney is not a reproductive organ, hence there is no germ cell or haploid cell in kidney. Cells in kidney are all diploid.

Small and simple molecules like water, $H_2O$, can pass through the easily as it is partially permeable. The cell membrane can filter out unimportant molecules that the cell does...

The is the outer part of the cell involved in cell to cell signalling. Proteins embedded in the membrane bind to a signal ligand and change. This change allows a...

Basic Definitions: = the semi-permeable structure that surrounds the cell and keeps all of the cells organelles from exploding everywhere. Cell Wall = the rigid 'armor' of the...

These molecules are called phospholipids (2 fatty acid "tails" with a phosphate group "head"). They tend to form phospholipid bilayers because of the fact that the fatty acid "tails" are...

Both malleability and ductility are prized physical properties of metals. Given these properties, metals are the premier materials for tool making. What is malleability?

Malleability (from malleus, hammer) is the ability to be hammered out into a sheet. Metals tend to be be highly malleable, and highly ductile (able to be drawn out into...