Vitamin Deficiencies and Functions

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Questions and Answers

Which vitamin can the human body not synthesize?

Vitamins A and E (correct)

Vitamin B3

Vitamin K

Vitamin D

What is the primary function of Thiamine in the diet?

Vision enhancement

Bone health

Energy metabolism (correct)

Cellular repair

Which vitamin is related to the regulation of blood clotting factors?

Vitamin B12

Vitamin C

Vitamin E

Vitamin K (correct)

Which of the following vitamins is a coenzyme in metabolic pathways?

Thiamine Signup and view all the answers

Which vitamin deficiency can lead to neurological issues?

Thiamine Signup and view all the answers

What is the primary deficiency caused by a lack of thiamine?

Thiamine deficiency Signup and view all the answers

Which cell organelle is primarily affected by an overdose of Vitamin A?

Lysosomes Signup and view all the answers

What important role does Vitamin E play in relation to enzymes?

Protects enzymes from destruction in various organs Signup and view all the answers

During coagulation, Vitamin K functions primarily through which mechanism?

Activating clotting proteins Signup and view all the answers

What might be a consequence of Vitamin D deficiency?

Decreased calcium absorption Signup and view all the answers

Which vitamin is essential for the synthesis of collagen?

Vitamin C Signup and view all the answers

What is the primary function of co-enzymes in metabolic pathways?

To assist enzymes in facilitating biochemical reactions Signup and view all the answers

Which vitamin is primarily responsible for preventing the oxidation of Vitamin A?

Tocopherols Signup and view all the answers

What is the main role of coenzymes in metabolic pathways?

To help enzymes catalyze reactions Signup and view all the answers

A deficiency in which vitamin is most likely to cause night blindness?

Vitamin A Signup and view all the answers

Which of the following organelles is associated with Vitamin E storage?

Endoplasmic reticulum Signup and view all the answers

Which amino acid is considered essential and must be obtained from the diet?

Leucine Signup and view all the answers

What condition is likely caused by a deficiency in Vitamin D?

Rickets Signup and view all the answers

Which vitamin plays a key role in collagen synthesis?

Vitamin C Signup and view all the answers

What is the primary function of Vitamin B12 in the body?

Aiding in red blood cell formation Signup and view all the answers

Which vitamin deficiency is linked to increased susceptibility to infections?

Vitamin A Signup and view all the answers

Where is Vitamin E primarily stored in the body?

Fatty tissues Signup and view all the answers

Study Notes

Vitamin Deficiencies and Actions

Thiamine Deficiency: Key term associated with various health issues.
Vitamin A Over-Dosage: Causes injury specifically to lysosomes within cells.

Vitamin E Functions

Protection of Enzymes: Vitamin E protects enzymes from destruction across all indicated organs including nerves, gonads, and muscles.

Role of Vitamin K

Coagulation Process: Vitamin K is crucial for the synthesis of specific blood clotting factors.

Vitamin Locations and Sources

Vitamin E Location: Predominantly found in mitochondria and endoplasmic reticulum.
Whole Wheat Source: Notably an excellent source of thiamine.

Vitamin Synthesis in Humans

Vitamins A and E: Humans cannot synthesize these vitamins, highlighting the need for dietary intake.

Tocopherol Functions

Oxidation Prevention: Tocopherols play a role in preventing the oxidation of Vitamin A, indicating their importance in maintaining vitamin stability.

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Description

Test your knowledge on various vitamin deficiencies, their sources, and essential functions in the body. This quiz covers key vitamins such as A, E, K, and thiamine, along with their roles in health and nutrition.