Glycerol Molecule

Question 1. Glycerol is not a carbohydrate – justify the statement.
Answer:

Glycerol is a three-carbon alcohol

Carbohydrate

“Understanding the glycerol molecule through FAQs: Structure, functions, and uses explained”

Each carbon is bonded to four groups and each oxygen to two groups.
It contains multiple hydroxyl groups.
These form attachment sites for fatty acid chains and result in triglycerides.
However, it lacks either aldehyde or ketone groups as present in carbohydrates.
Thus, it is not a carbohydrate, but however, the body can use it to make glucose.

“Importance of studying the glycerol molecule for medical students: Questions explained”

Question 2. Significance of citric acid cycle.
Answer:

It is the most important metabolic pathway for the energy supply to the body.
About 65 – 70% of the ATP is synthesized in the Krebs cycle.
It is the final common oxidative pathway for carbohydrates, fats, and amino acids.
It provides many intermediates required for the synthesis of amino acids, glucose, heme, etc.
It is the most important central pathway connecting almost all the individual metabolic pathways.
It is both catabolic and anabolic in nature.

“Common challenges in mastering glycerol molecule notes effectively: FAQs provided”

It synthesizes the following.
- Separate from oxalacetate and glutamate from a-ketoglutarate are used for the synthesis of other nonessential amino acids, purine, and pyrimidines.
- Synthesis of porphyrins and heme from succinyl CoA.
- Biosynthesis of fatty acids, steroids, etc from acetyl CoA.

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