NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Steroids are an important example of ____
A
Carbohydrates
B
Lipids
C
Proteins
D
Nucleic Acid
Explanation: 

Detailed explanation-1: -Steroids are not considered true lipids. They are usually classified under lipids but the structure and function of steroids are different from lipids though they have a similar property of hydrophobicity and insolubility in water. Steroids can interact with fatty acids as they have a-OH group attached to the ring.

Detailed explanation-2: -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-3: -Steroids have numerous physiological functions associated with cellular signaling or modulation of the lipid membrane structure and dynamics, and as such, they have found broad pharmacological applications.

Detailed explanation-4: -Steroids include cholesterol, sex hormones (progesterone, estrogen, and testosterone) produced by gonads and cortisone.

Detailed explanation-5: -Examples of lipids include fats, oils, waxes, certain vitamins (such as A, D, E and K), hormones and most of the cell membrane that is not made up of protein.

There is 1 question to complete.