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Outline the structure and function of the plasma membrane

The plasma membrane is composed of a phospholipid by-layer. These phospholipid molecules are arranged in a double sheet which are stable yet fluid. These molecules have hydrophobic tails and hydrophilic head...
NL
Answered by Nathan L. • Biology tutor
6472 Views

Give the advantages an disadvantages of building an airport to a nearby settlement.

The advantages are that it will supply a number of jobs for the local community. This will be because builders, plumbers, electricians etc will be needed for the building of the airport, and then staff will ...
NL
Answered by Nathan L. • Geography tutor
57839 Views

Explain the formation of a stump

A stump is formed through a series of erosional processes. This are corrasion (the effects of material suspended in the water being thrown against the headland), and hydraulic action (the effect of the build...
NL
Answered by Nathan L. • Geography tutor
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"Serbian nationalism was the key cause of the First World War." Discuss this statement.

The First World War was precipitated by a variety of factors, many of which interlink and influence each other. This myriad of causes certainly raises issues for historians who are attempting to identify one...
TK
Answered by Thomas K. • History tutor
9079 Views

Each skin cell in a mouse has 40 chromosomes. How many chromosomes were present in each cell after dividing four times during cell culture?

When a cell divides, the number of chromosomes in that cell does not change. So if a cell had 40 chromosomes in it before it divided, it would still have 40 chromosomes in it after it had divided.
KJ
Answered by Kelly J. • Biology tutor
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