Thiamine and pyridoxine are also known respectively as
(a) vitamin B2 and vitamin E
(b) vitamin E an

Q: How can I easily memorize the chemical names of all these vitamins?

Create mnemonics or flashcards! Grouping them by fat-soluble (A, D, E, K) and water-soluble (B, C) also helps build a mental map. Regular revision is the key.

Q: Are thiamine and pyridoxine water-soluble or fat-soluble?

Yes, all B-complex vitamins, including thiamine and pyridoxine, are water-soluble. This means they are not stored in the body and need to be replenished regularly through your diet.

Q: What disease is caused by a deficiency of thiamine?

Beriberi is caused by a severe deficiency of thiamine (Vitamin B1). It affects the cardiovascular and nervous systems.

Q: What is the primary role of pyridoxine in the human body?

Pyridoxine (Vitamin B6) is crucial for amino acid metabolism, red blood cell production, and the creation of neurotransmitters like serotonin and dopamine.

Q: Why are there gaps in the B vitamin numbers, like B4 or B8?

Historically, some substances were classified as B vitamins, but later scientific research revealed they were either not essential vitamins for humans or could be synthesized by the body. Consequently, their numbers were dropped from the official list.

Question

Thiamine and pyridoxine are also known respectively as

Options:

(A) vitamin $B_2$ and vitamin E

(B) vitamin E and vitamin $B_2$

(C) vitamin $B_6$ and vitamin $B_2$

(D) vitamin $B_1$ and vitamin $B_6$

Sigma Percentile · Accepted Answer

### The Alphabet Soup of Vitamins

When studying biomolecules, vitamins often feel like an alphabet soup mixed with complex chemical names. But don't get intimidated! Let's break it down logically. Vitamins are essential organic compounds that our bodies need in microscopic amounts to function properly. They are broadly classified into two major categories: fat-soluble vitamins (A, D, E, K) and water-soluble vitamins (B-complex and C).

### Decoding the B-Complex Family

The B-complex family is a group of water-soluble vitamins that play vital roles in cell metabolism. Because they are water-soluble, our bodies cannot store them for long periods, making a regular dietary intake absolutely necessary. Each member of this family has a specific chemical name that you must remember for your exams.

Let's look at the ones mentioned in our problem:

- **Thiamine** is the very first member of the B-complex family, which is why it is designated as **Vitamin $B_1$**. It is crucial for nerve function and energy metabolism. A severe deficiency of Thiamine leads to a disease called Beriberi.

- **Pyridoxine** is chemically known as **Vitamin $B_6$**. It is heavily involved in amino acid metabolism, the production of red blood cells, and the synthesis of neurotransmitters in the brain.

### What About the Others?

The question also mentions Vitamin $B_2$ and Vitamin E in the options. Let's identify them as well to complete our knowledge base:

- **Vitamin $B_2$** is chemically known as **Riboflavin**. It is essential for energy production and cellular function. Its deficiency can cause cheilosis (cracking at the corners of the mouth).

- **Vitamin E** is a fat-soluble antioxidant chemically known as **Tocopherol**. It protects our cell membranes from oxidative damage.

### The Final Verdict

By simply matching the common names to their chemical designations, we can confidently conclude that Thiamine is Vitamin $B_1$ and Pyridoxine is Vitamin $B_6$. This makes option (d) the perfect match! Questions like these are purely memory-based and can be highly scoring if you revise your biomolecules tables regularly.

Animated Solution for Chemistry - Organic Chemistry: Thiamine and pyridoxine are also known respectively as

Select Answer:

Visualized Solution

$Vitamins$

$Water-Soluble$

$B_{1} \equiv Thiamine$

$B_{6} \equiv Pyridoxine$

$B_{2} \equiv Riboflavin$

$Vit E \equiv Tocopherol$

$Conclusion$

The Sigma Insight: Biomolecules

The Alphabet Soup of Vitamins

Decoding the B-Complex Family

What About the Others?

The Final Verdict

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