February 2025 - BDS Quiz 02

What is the most abundant mineral in the human body?

• Fluorine

• Phosphorus

• Calcium

• Iron

Which form of calcium is physiologically active in blood?

• Protein bound calcium

• Ionised calcium

• Complexed calcium

• Calcium phosphate

What is the recommended daily allowance (RDA) of calcium for adults?

• 400 mg/day

• 1000 mg/day

• 800 mg/day

• 1200 mg/day

Which vitamin is essential for increasing intestinal absorption of calcium?

• Vitamin A

• Vitamin C

• Vitamin D

• Vitamin E

What condition is characterized by incomplete mineralization of growing bones in children?

• Osteoporosis

• Rickets

• Osteomalacia

• Tetany

What is the primary dietary source of phosphorus?

• Fruits

• Meat

• Dairy products

• Cereals

What is the recommended daily allowance (RDA) of iron for adult females?

• 15 mg/day

• 20 mg/day

• 40 mg/day

• 10 mg/day

Which trace element is essential for the normal development of bones and teeth?

• Iodine

• Fluorine

• Calcium

• Iron

What is the primary function of thyroxine (T4)?

• Regulating blood calcium levels

• Increasing basal metabolic rate

• Transporting oxygen in blood

• Stimulating insulin secretion

What condition is characterized by mottled enamel and discoloration of teeth due to excess fluoride?

• Hyperphosphatemia

• Skeletal fluorosis

• Iron deficiency anemia

• Dental fluorosis