FOOD TECHNOLOGY

FOOD CHEMISTRY

CARBOHYDRATES PROTEINS AND LIPIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Lipids are composed of which atoms?
A
Hydrogen, Oxygen, Nitrogen
B
Hydrogen, Oxygen, Carbon
C
Oxygen, Nitrogen, Carbon
D
Oxygen, Nitrogen, Hydrogen
Explanation: 

Detailed explanation-1: -Fats, also called lipids, are composed of the elements carbon, hydrogen and oxygen.

Detailed explanation-2: -Fatty Acids Lipids consist only or mainly of carbon, hydrogen, and oxygen. Both fats and oils are made up of long chains of carbon atoms that are bonded together. These chains are called fatty acids. Fatty acids may be saturated or unsaturated.

Detailed explanation-3: -Lipids are mainly composed of carbon and hydrogen atoms, and this hydrophobic ("water fearing") nature of lipids is driven by the bonds between these many carbons and hydrogens.

Detailed explanation-4: -However, in lipids, the ratio of hydrogen to oxygen is considerably greater. For example, the common lipid, stearin, has as many as 18 hydrogen atoms for every oxygen (see figure below). Line drawings of a glucose and stearin molecule. Stearin is a triglyceride saturated fat that is commonly found in animal products.

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