Search our library of homework questions

Top answers

All subjects

All levels

How is the liver adapted to regulating blood component concentrations?

Sinusoids are chambers within the liver where deoxygenated blood from the gut (containing products of digestion) and oxygenated blood from the heart, mix. Sinusoids are lined with liver cells (

Answered by Sana Z. • Biology tutor

4105 Views

Describe, using the fluid mosaic model, the structure of the cell membrane in animal cells.

The cell membrane is composed of phospholipid molecules. These have a hydrophobic head and a hydrophilic tail. The molecules arrange themselves in a bilayer so that the hydrophobic heads point outwards an...

Answered by Morgan G. • Biology tutor

3459 Views

Describe and explain the similarities and differences between the structures of diamond and graphite.

Diamond and graphite are both allotropes of carbon. This means they are both made up of carbon atoms arranged differently and exist in the same physical state. They both have a giant covalent structure.Di...

Answered by Morgan G. • Chemistry tutor

35741 Views

X^2 - 4y = -8 y=3

X^2 - (4*3) + 8 = 0
X^2 -4 = 0
X^2 = 4
X = 2

Answered by Tom H. • Maths tutor

3121 Views

Integrate (x^2 +2)(2x-6) with respect to x.

For a simple integration like this, begin by expanding the brackets to get 2x³-6x²+4x-12. Next each term should be integrated with respect to x, begin with the first term, each peer ...

Answered by Nicholas B. • Maths tutor

3290 Views