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Osmosis is strictly the movement of water. Its definition is the net movement of water across a partially permeable membrane from a high water potential to a low water potential. Therefore this is only th...

An allele is a version of a gene, for instance a gene that determines hair colour may have an allele for blonde hair and an allele for dark hair. We all have two copies of each gene because we inherit two...

There are many organelles you could choose from so long as it is only present in plant cells and you can explain it's function it is appropriate. Examples include:Cell wall - provides structural support m...

The main structures in an animal cell are: The cell membrane- the membrane found around the outside of the cell, some substances can cross it to move in and out of the cell (this means it is semi-permeabl...

The heart has 4 main chambers; the right and left atrium, and the right and left ventricle. Each receive blood and pump blood from and to different parts of the body. The right atrium receive de-oxygenate...