HUMAN NUTRITION

NUTRITION

LIPIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is true about lipids? Select all that apply.
A
They contain carbon, hydrogen, and oxygen only
B
They contain a 2:1 ratio of hydrogen to oxygen
C
They have a greater than 2:1 ratio of hydrogen to oxygen
D
They have less than a 2:1 ratio of hydrogen to oxygen
Explanation: 

Detailed explanation-1: -The components of lipids are the same, but the oxygen ratio is lower than one (in the ratio), so it is 1:2: less than one for C:H:O. Note: A lipid is any of a number of organic compounds that are water insoluble.

Detailed explanation-2: -In lipids, the components are the same but the ratio is less for oxygen, so it is 1:2: less than one for C:H:O.

Detailed explanation-3: -In a fat molecule, a fatty acid is attached to each of the three oxygen atoms in the –OH groups of the glycerol molecule with a covalent bond (Figure 2). Figure 2. Lipids include fats, such as triglycerides, which are made up of fatty acids and glycerol, phospholipids, and steroids.

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