However, [heat] does not 'destroy' the protein, it simply causes it to unfold. The amino acids remain intact and are still available.. I think the confusion of where heat can cause a problem is with enzymes.
TOEFL stands for Test Of English as a Foreign Language (Educational Testing Service) Suggest new definition. This definition appears very frequently and is found in the following Acronym Finder categories: Organizations, NGOs, schools, universities, etc.
And using the Internet to borrow other people's work will only get you expelled. The TOEFL test Writing section isn't as challenging as writing a term paper, but you definitely have to prove you know how to write a few paragraphs using proper grammar, and how to get your point across clearly and convincingly.