Tag: lipids

Questions Related to lipids

Which one of the following is not an essential fatty acid?

bio-chemistry biological molecule lipids and their function some biomolecules lipids

  1. Linoleic acid

  2. Linolenic acid

  3. Arachidonic acid

  4. None of the above

Show answer
Correct Option: C
Explanation:

Arachidonic acid is not an essential fatty acid because it can be synthesized by the cells in the body from linoleic acid. All the other three are essential fatty acids.

So, the correct answer is 'Arachidonic acid'.

How many of fatty acids/ fats given below do you except to have low melting points and remain as liquids in waters?
Palmitic acid, gingelly oil, arachidonic acid, stearic acid, arachidic acid, tripalmitate

bio-chemistry biological molecule lipids and their function some biomolecules lipids

  1. One

  2. Two

  3. Three

  4. Four

Show answer
Correct Option: D
Explanation:
Palmitic acid, arachidonic acid, stearic acid and arachidic acid are the fatty acids present in the vegetable oil. They are unsaturated fatty acid that have low melting point and remain liquid at room temperature.
So the correct answer is 'four'.

Which one of the following oils is having maximum content of Polyunsaturated Fatty Acids (PUFA)?

bio-chemistry biological molecule lipids and their function some biomolecules lipids

  1. Coconut oil

  2. Cottonseed oil

  3. Soyabean oil

  4. Sunflower oil

Show answer
Correct Option: D
Explanation:
Polyunsaturated fat is a type of dietary fat. It is one of the healthy fats, along with monounsaturated fat. Polyunsaturated fat is found in plant and animal foods, such as salmon, vegetable oils, and some nuts and seeds. Eating moderate amounts of polyunsaturated (and monounsaturated) fat in place of saturated and trans fats can benefit your health. Polyunsaturated fat is different than saturated fat and trans fat. These unhealthy fats can increase your risk for heart disease and other health problems. Polyunsaturated fats can help lower your LDL (bad) cholesterol. Cholesterol is a soft, waxy substance that can cause clogged or blocked arteries (blood vessels). Having low LDL cholesterol reduces your risk for heart disease.Polyunsaturated fats include omega-3 and omega-6 fats. These are essential fatty acids that the body needs for brain function and cell growth. Sunflower oil has higher amounts of healthy fats than others. 
So the correct option is 'sunflower oil'.