NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

BIO MOLECULES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
wax, steroids and cholesterol are examples of
A
carbohydrate
B
lipid
C
protein
D
nucleic acid
Explanation: 

Detailed explanation-1: -Lipids, as a class of compounds, are insoluble in water but are soluble in other organic solvents. Examples of such solvents include acetone and ether. Waxes, steroids, phospholipids, and fats are the most common types of lipid groups. Fats have glycerol in addition to three fatty acids.

Detailed explanation-2: -A wax is a simple lipid which is an ester of a long-chain alcohol and a fatty acid. The alcohol may contain from 12-32 carbon atoms. Waxes are found in nature as coatings on leaves and stems.

Detailed explanation-3: -Lipids are also the building blocks of many hormones and are an important constituent of all cellular membranes. Lipids include fats, oils, waxes, phospholipids, and steroids.

Detailed explanation-4: -Steroids are another class of lipid molecules, identifiable by their structure of four fused rings. Although they do not resemble the other lipids structurally, steroids are included in lipid category because they are also hydrophobic and insoluble in water.

Detailed explanation-5: -Cholesterol belongs to the steroid family of lipid (fat) compounds. It’s a type of fat in your body and several of the foods you eat. While too much cholesterol isn’t a good thing, the body needs some cholesterol to run at its best. Cholesterol is the most abundant steroid in the body.

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