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प्रश्न
Goitre is caused by a deficiency of the mineral ______.
विकल्प
iron
calcium
iodine
potassium
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उत्तर
Goitre is caused by a deficiency of the mineral iodine.
Explanation:
Iodine is essential for the production of thyroid hormones. A lack of iodine leads to an enlarged thyroid gland, resulting in goitre.
संबंधित प्रश्न
Give the one-word substitute for the following:
Insect-eating organism.
Spot the following in the table of vitamins and minerals.
Causes and symptoms of night blindness, scurvy, rickets, beriberi.
Classify according to food-type.
Human
Short Answer Type Questions:
Excess intake of fats is harmful to the body because it causes obesity. Would it be harmful to the body to take too much of proteins or vitamins in the diet?
Match the Column I with Column II and choose the correct option.
| Column I (Food componets) | Column II (Gross calorific value) | ||
| i. | Proteins | a. | 9.45 Kcal/g |
| ii. | Carbohy drates | b. | 4.1 Kcal/g |
| iii. | Fats | c. | 5.65 Kcal/g |
Which of the following statement (s) is (are) true about the heart?
- Left atrium receives oxygenated blood from different parts of the body while the right atrium receives deoxygenated blood from the lungs
- Left ventricle pumps oxygenated blood to different body parts while the right ventricle pumps deoxygenated blood to the lungs
- Left atrium transfers oxygenated blood to the right ventricle which sends it to different body parts
- Left atrium transfers oxygenated blood to the right ventricle which sends it to different body parts
Which of the following raw material is available in the air for photosynthesis?
Observe the diagram given as Figure and label the following terms given in the box.
| stomatal opening, guard cell |
Name the processes involved in metabolism.
