Vitamin A Forms Quiz

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What is the primary function of Gla proteins?

To trap calcium ions (correct)

To break down fats in the digestive system

To transport oxygen in the blood

To regulate blood sugar levels

Which of the following is NOT mentioned as a cause for vitamin K deficiency?

Excessive alcohol consumption (correct)

Obstructive jaundice

Malabsorption syndrome

Prolonged antibiotic treatment

What is the reason for vitamin K deficiency in newborns, particularly premature ones?

Their mothers' milk does not contain sufficient amounts of vitamin K

Their gut is sterile and lacks the necessary intestinal flora for vitamin K production

Their livers are not fully developed to produce vitamin K

Both A and C (correct)

What is the effect of anticonvulsant treatment on vitamin K absorption?

It interferes with vitamin K absorption (C) Signup and view all the answers

What is the primary difference between vitamin K and vitamin C deficiencies in terms of their effects on blood clotting?

Vitamin K deficiency increases prothrombin time, while vitamin C deficiency has no effect on blood clotting (C) Signup and view all the answers

Which of the following is NOT mentioned as a Gla protein in the text?

Prothrombin (C) Signup and view all the answers

What is the role of bile salts in the absorption of fat-soluble vitamins like vitamin K?

Bile salts are necessary for the absorption of fat-soluble vitamins (D) Signup and view all the answers

What is the consequence of prolonged antibiotic treatment on vitamin K levels?

It decreases vitamin K levels by killing the intestinal flora responsible for its production (B) Signup and view all the answers

Which of the following is NOT a manifestation of vitamin K deficiency mentioned in the text?

Nosebleeds (A) Signup and view all the answers

What is the chemical symbol for potassium?

K (B) Signup and view all the answers

What is the primary consequence of impaired synthesis of calcitriol mentioned in the text?

Symptoms and signs of vitamin D deficiency (D) Signup and view all the answers

What is the underlying cause of the vitamin D deficiency mentioned in the text?

Impaired synthesis of calcitriol (D) Signup and view all the answers

Which of the following is a potential consequence of the vitamin D deficiency mentioned in the text?

Increased risk of hypertension (A) Signup and view all the answers

What is the primary role of calcitriol in the body?

Regulating calcium and phosphate homeostasis (A) Signup and view all the answers

Which of the following is a potential cause of the impaired synthesis of calcitriol mentioned in the text?

All of the above (D) Signup and view all the answers

What is the primary function of vitamin D in the body?

Regulating calcium and phosphate homeostasis (B) Signup and view all the answers

Which of the following is a common symptom of vitamin D deficiency?

Muscle weakness (C) Signup and view all the answers

What is the role of the kidneys in the synthesis of calcitriol?

They convert 25-hydroxyvitamin D to calcitriol (B) Signup and view all the answers

How does impaired synthesis of calcitriol affect calcium and phosphate homeostasis?

It decreases calcium and phosphate levels (C) Signup and view all the answers

What is the primary role of vitamin D in bone health?

Regulating calcium and phosphate homeostasis (A) Signup and view all the answers

Which of the following is a potential symptom associated with gum hyperplasia?

Delayed wound healing (D) Signup and view all the answers

How does inflammation contribute to poor wound healing as mentioned in the text?

By facilitating collagen synthesis (A) Signup and view all the answers

What is a potential consequence of skeletal deformity mentioned in relation to the conditions described?

Impaired mobility (B) Signup and view all the answers

How does gum hyperplasia potentially affect dental health?

Leads to tooth loss (C) Signup and view all the answers

In what way may poor wound healing impact overall health?

Increases susceptibility to infections (D) Signup and view all the answers

What effect might inflammation have on the body's response to injuries?

Suppresses the immune system (A) Signup and view all the answers