Causes of Diseases

Q. HIV after entering the body, first attacks the _______.

1. respiratory system
2. digestive system
3. immune system
4. excretory system

Q. State whether the following statements are true or false.​

Statement 1: Elephantiasis is a disease caused by female​ Anopheles mosquito.​
Statement 2: Nausea, night sweat, and fever are the symptoms​ of malaria.​

1. Statement 1: False; Statement 2: True​
2. Statement 1: True; Statement 2: True​
3. Statement 1: True; Statement 2: False​
4. Statement 1: False; Statement 2: False​

Q. Which among the following disease is not caused by a virus?

1. Syphilis
2. AIDS
3. Genital herpes
4. Hepatitis B

Q. Unscramble the following:
$\begin{array}{cccc}& \text{Disease}& \text{Causative Organism}& \text{Target}\\ \text{A}& \text{RLIEBORTSUSC}& \text{Bacteria}& \text{Lungs}\\ \text{B}& \text{AARLMAI}& \text{Protozoa}& \text{Liver and RBC}\\ \text{C}& \text{RNIAB EEVRF}& \text{Virus}& \text{Brain}\end{array}$

1. A: Pneumonia, B: Measles, C: Brain tumour
2. A: Tuberculosis, B: Measles, C: Brain fever
3. A: Tuberculosis, B: Malaria, C: Brain fever
4. A: Pneumonia, B: Malaria, C: Brain fever

Q. Leishmania, a protozoan causes _______.

1. malaria
2. AIDS
3. anthrax
4. kala-azar

Q. Which among the following infectious agent use the host cell machinery to carry out their life processes?

1. Protozoa
2. Virus
3. Bacteria
4. Fungus

Q. Diseases where ______ are the immediate causes are called infectious diseases.

1. birds
2. animals
3. microbes
4. insects

Q. Which among the following statements are true?

1. Worms multiply faster than virus and bacteria.
2. Bacteria are closely related to each other than to viruses and vice-versa.
3. Life processes in bacteria are similar to those of viruses and vice-versa.
4. Drugs that block any bacterial life processes will also block viral life processes.

Q. Which among the following statements are correct?

1. Diseases caused by pathogens are infectious.
2. Infectious diseases can be communicable.
3. Diseases caused by pathogens are non-infectious.
4. Infectious diseases can be non-communicable.

Q. Which among the following pathogen causes malaria?

1. Fungus
2. Bacteria
3. Virus
4. Protozoan