Deficiency Diseases
Important Questions on Deficiency Diseases
A mineral X is essential for the formation of a component ‘Y’, in the blood of a person. The function, of component Y, is to transport oxygen in the body. The deficiency of mineral ‘X’, in the diet of a person, causes a disease Z. Identify X, Y and Z. Also mention the symptoms of disease Z.

The table below shows some common symptoms of nutrient deficiency.
Type of nutrient | Symptoms due to its deficiency |
Vitamin A | Poor vision, loss of vision at night |
Calcium | Weak bones, tooth decay |
Vitamin C | Bleeding gums, wounds take longer to heal |
Iodine | Glands in the neck appear swollen |
Pankaj is suffering from tooth decay and bleeding gums. Which of the following nutrients in food would help him recover?

Match the items in column A with those in column B.
Column A | Column B |
Diseases caused | Deficiency of |
1. PEM | a) Vitamin A |
2. Beriberi | b) Vitamin D |
3. Scurvy | c) Vitamin B |
4. Goitre | d) Roughage |
5. Rickets | e) Proteins |
6. Night blindness | f) Vitamin C |
7. Constipation | g) Iodine |

Harsh once went to a poor family having two children. He saw that both the children had a protruding belly, swollen legs, and were underweight. He advised their parents to give children enough milk, pulses and eggs.
Answer the following questions based on the above information :
Which values are displayed by Harsh in taking this initiative?

Read the following statements about diseases.
(i) They are caused by germs.
(ii) They are caused due to lack of nutrients in our diet.
(iii) They can be passed on to another person through contact.
(iv) They can be prevented by taking a balanced diet.
Which pair of statements best describe a deficiency disease?

A person lives in a hilly area. The drinking water and food is grown in this area are poor in a mineral P. The deficiency of P in the body causes an abnormal enlargement of gland Q leading to a disease R. The disease R, however, does not occur in the people living in coastal areas.
Name one disease in children, which occurs due to the deficiency of mineral P in their diet. (Cretinism/marasmus)

Anushka does not like to take green leafy vegetables and fruit in her diet. After a time, her body will be in a deficit of which vitamin? Write the consequences of the same.

People of a family do not eat seafood. They are also not aware of taking iodized salt. Which disease are they prone to? Why?

Label the child suffering from kwashiorkor, a healthy child and a child suffering from Marasmus disease.

What would happen if the diet of a child provides enough calories but is deficient in proteins?

Match the following:
Column A | Column B |
1. Fluorine | (a) Beriberi |
2. Iron | (b) Rickets |
3. Vitamin B1 | (c) Kwashiorkor |
4. Protein deficiency | (d) Dental caries |
5. vitamin D | (e) Anaemia |

Match the following:
Column A | Column B | ||
1. | Scurvy | a. | Iodine |
2. | Beriberi | b. | Vitamin C |
3. | Goitre | c. | Protein |
4. | Anaemia | d. | Vitamin D |
5. | Rickets | e. | Vitamin B1 |
6. | Kwashiorkor | f | Iron |

