Rickets, Osteomalacia, and Vitamin E Quiz

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18 Questions

What is the main function of Vitamin E (tocopherol)?

Acts as a natural antioxidant

What condition is caused by Vitamin D deficiency in adults?

Rickets

Which vitamin is essential in helping the blood to clot and preventing excessive bleeding?

Vitamin K

What is a clinical significance of Vitamin E deficiency?

Increased red blood cell fragility

Which compounds are Vitamin E a mixture of?

Tocopherols

Which type of vitamins are stored in the body's liver, fatty tissue, and muscles?

Fat-soluble vitamins

What is the major function of the K vitamins?

Maintain normal blood clotting proteins

Which vitamin is known as ascorbic acid and is found in citrus fruits?

Vitamin C

What is the main function of ascorbate?

Serving as a reducing agent in various reactions

What is the main function of vitamin K in the body?

Blood clotting

Which vitamin is responsible for the hydroxylation of proline residues in collagen?

Vitamin E (tocopherol)

What disease results from a deficiency in vitamin C?

Scurvy

Which of the following vitamins is absorbed more easily by the body in the presence of dietary fat?

Vitamin D

Which vitamin deficiency causes children to develop rickets?

Vitamin D

What happens to any excess water-soluble vitamins in the body?

They leave the body through urine

Which vitamin is primarily responsible for regulating calcium and phosphorous homeostasis?

Vitamin D

What is the major natural source of vitamin D?

Synthesis of cholecalciferol in the epidermis through sun exposure

Which of the following vitamins is classified as an antioxidant?

Vitamin E

Study Notes

Vitamin Functions and Deficiencies

  • Vitamin E (tocopherol) acts as an antioxidant, protecting cells from damage.
  • Vitamin D deficiency in adults causes osteomalacia, a condition characterized by softening of bones.
  • Vitamin K is essential for blood clotting and preventing excessive bleeding.
  • Vitamin E deficiency can lead to neuromuscular problems, including muscle weakness and vision impairment.
  • Vitamin E is a mixture of eight different compounds, including tocopherols and tocotrienols.
  • Fat-soluble vitamins, such as vitamins A, D, E, and K, are stored in the body's liver, fatty tissue, and muscles.
  • The K vitamins play a crucial role in blood clotting and bone health.
  • Ascorbic acid, also known as vitamin C, is found in citrus fruits and plays a key role in collagen synthesis.
  • Ascorbate helps to maintain healthy skin, bones, and connective tissue.
  • Vitamin K is necessary for the production of clotting factors in the liver and bone mineralization.
  • Vitamin C is responsible for the hydroxylation of proline residues in collagen, which gives collagen its strength and structure.
  • Scurvy results from a deficiency in vitamin C.
  • Vitamin D absorption is enhanced by the presence of dietary fat.
  • Vitamin D deficiency in children causes rickets, a condition characterized by softening of bones.
  • Excess water-soluble vitamins, such as vitamin C and B vitamins, are flushed out of the body through urine.
  • Vitamin D is primarily responsible for regulating calcium and phosphorous homeostasis.
  • The major natural source of vitamin D is sunlight exposure, which triggers its synthesis in the skin.
  • Vitamin E and vitamin C are classified as antioxidants, protecting cells from oxidative damage.

Test your knowledge on bone disorders like rickets and osteomalacia, as well as the functions of Vitamin E. Learn about the improper mineralization of bones, soft bone development, demineralization causing bone softness, and the antioxidant function of Vitamin E.

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