Proteins are an important part of a healthy diet because they provide essential amino acids. (a) State what is meant by an essential amino acid.

 There are 20 amino acids, and they can be classified as essential or non-essential – if they are non-essential they can be synthesised by the human body by itself, with no need to supplement them in the diet. If they are essential they cannot be synthesised by the body and must be obtained through dietary means. 

Answered by Darragh C. Chemistry tutor

2294 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

Regarding the first ionisation energies, why do the values shown on the graph go down from magnesium to aluminium and then rise again from aluminium to silicon


A compound, HOCH2CH2CH2CH2COCl, reacts with itself to give a new compound. Give the IUPAC name for the starting compound, draw the mechanism for the formation of the new compound and give the prominant feature of the IR spectrum of the new compound.


Draw a mechanism for electrophilic addition?


What is meant by the term optical isomerism?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy