Manifestations of Diseases | Why do we fall Ill? | Assessment | English | Grade 9

Where does the HIV virus develop in the body once entered?

• Red blood cells

• Lungs

• White blood cells

• Liver

Answer explanation

When HIV virus entered in the body it develops in the white blood cells

Which of the following does not show symptoms of attack of microorganisms on lungs?

• Cough

• Cold

• Difficulty in breathing

• Headache

Answer explanation

Headache is not symptom of attack of microbes on lungs. Others are symptoms of attack of microbes on lungs.

When symptoms of disease get expressed, then it is called ___________

• Illness

• Manifestation of disease

• Immunity

• None of these

Answer explanation

When symptoms of disease get expressed then it is called manifestation of disease.

Which body part gets attacked by microorganism in case of jaundice?

• Liver

• Lungs

• Brain

• Intestine

Answer explanation

Attack of microorganisms on liver causes jaundice.

Which system in our body protects us from diseases?

• Nervous system

• Immune system

• Digestion system

• Reproduction system

Answer explanation

Immune system in our body protects us from diseases.

Manifestation of disease depends on the ______________

• Immune system

• Wellness of body

• Number of microbes in the body

• None of these

Answer explanation

Manifestation of disease depends on the number of microbes in the body

Rajesh, recently had a blood transfusion. After that his immune system became weak. He was affected by cough and cold. After a few days he died. What was the possible reason of his death?

• Microorganisms attacked on intestine

• Blood used for transfusion was of AIDS affected person

• Jaundice

• None of these

Answer explanation

As we know that AIDS can be transmitted by blood transfusion and once HIV virus enters in body it weakens immune system. Person could not even handle small attacks like cough and cold. and sometimes cause death. According to this option 2 is correct.