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State two causes of protein denaturation and give one example in each case. - Leaving Cert Home Economics - Question 1 - 2021
Question 1
State two causes of protein denaturation and give one example in each case.
Worked Solution & Example Answer:State two causes of protein denaturation and give one example in each case. - Leaving Cert Home Economics - Question 1 - 2021
Step 1
Cause: Heat
Answer
One cause of protein denaturation is heat. When proteins are exposed to high temperatures, they undergo structural changes that can lead to denaturation.
Example: Hard boiled eggs result from heating the protein in the egg whites and yolk, causing them to solidify and change texture.
Step 2
Cause: Mechanical action e.g., whisking, beating
Answer
Another cause of protein denaturation is mechanical action, such as whisking or beating. This physical agitation can disrupt the protein's structure.
Example: Sponge cake is made by beating eggs, which incorporates air and causes denaturation of the proteins, resulting in a light and fluffy texture.