Photo AI
Explain each of the following and give one source in each case - Leaving Cert Home Economics - Question 1 - 2006
Question 1
Explain each of the following and give one source in each case. (i) Cis fatty acid _____________________________________________________ Source ____________________... show full transcript
Worked Solution & Example Answer:Explain each of the following and give one source in each case - Leaving Cert Home Economics - Question 1 - 2006
Step 1
(i) Cis fatty acid
Answer
Cis fatty acids are characterized by the configuration of hydrogen atoms around the double bond, where the hydrogen atoms are positioned on the same side. This results in a bend or kink in the fatty acid chain, which affects its physical properties, making it more fluid compared to trans fatty acids.
Source: Common sources of cis fatty acids include cooking oils, such as olive and canola oil, and oily fish like salmon.
Step 2
(ii) Trans fatty acid
Answer
Trans fatty acids have hydrogen atoms located on opposite sides of the double bond. This configuration makes the fatty acid chain straighter, which can contribute to higher melting points and a more solid texture. This structure is often associated with unhealthy fats that can raise cholesterol levels.
Source: Trans fatty acids are commonly found in hard margarines and fats used in deep frying.