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What’s the difference between a prokaryotic and a eukaryotic cell?

This is a topic which is common across all A-Level specifications, the questions surrounding this topic may vary from labelling diagrams, matching features in a table, or longer written styles of question...

Answered by Zachary M. • Biology tutor

53890 Views

Describe the properties of primary protein structure.

The main component of primary protein structure is that it is composed of amino acids.

The amino acids are connected via covalent chemical bonds more specifically called the peptide bond.

A...

Answered by Alysha V. • Biology tutor

3216 Views

Molecules of hydrogen chloride, HCl, and molecules of fluorine, F2, contain the same number of electrons. Hydrogen chloride boils at –85 °C and fluorine boils at –188 °C. Explain why there is a difference in the boiling points of HCl and F2.

F2 has temporary dipole-dipole interactions known as van der Waals’ forces. Whilst HCl has permanent dipole-dipole interactions. The intermolecular forces in HCl are stronger than that in F2 (permanent di...

Answered by Freddie G. • Chemistry tutor

8669 Views

Explain what happens in the body when a Polio vaccine is administered.

The vaccine contains a weakened or inactivated form of the virus. The viral particle displays an antigen on its surface specific to poliovirus. Once in the blood, a specific helper T cell will detect the ...

Answered by Freddie G. • Biology tutor

2976 Views