| a. | All parasites are pathogens as they cause harm to the host. |
| b. | Pathogens have to adapt to life within the environment of the host. |
| c. | Pathogen of dysentery lives in the gut of host organism. |
| d. | Pathogens can enter human body by various means causing functional damage but do not interferes with normal vital activities. |
| a. | Infection by Rhino virus is the reason for it |
| b. | Infects the nose and respiratory passage except lungs |
| c. | Usually last for 3-7 days |
| d. | Can transmit through sharing of contaminated objects such as pens, books etc. |
| e. | Can be treated by antibiotics as they kill viruses |
| Statement (A): | Among non-infectious diseases, cancer is the major cause of death all over the globe. |
| Statement (B): | Malignant malaria caused by Plasmodium malariae is the most serious one. |
| Column -I | Column -II |
| a.Pneumonia | (i) Constipation, abdominal pain, stools with excess mucous and blood clots |
| b.Amoebiasis | (ii) Infection occurs in conducting part of human respiratory system |
| c. Ascariasis | (iii) Infection occurs in gaseous exchange part of human respiratory system |
| d. Common cold |
(iv) Internal bleeding, fever, anaemia, blockage of intestinal passage |
| 1. | Erythrocytes only |
| 2. | Mucosa and submucosa of duodenum |
| 3. | Erythrocytes, mucosa and submucosa of colon |
| 4. | Mucosa and submucosa of colon only |
| 1. | Entry of sporozoites in the RBCs of human host through mosquito bite |
| 2. | Multiplication of sporozoites within hepatocytes |
| 3. | Rupture of RBCs to release haemozoin in blood |
| 4. | Development of gametocytes |