Biology · Science General

Disease Causative Agents

2,258 Questions

Disease causative agents questions test your understanding of viral, bacterial, and fungal infections, along with their transmission methods. These are common topics in general science sections of SSC and railways exams. Practice these questions to accurately identify disease pathogens and symptoms.

Viral diseasesFoodborne illnessesDisease transmission methodsExtrinsic disease factorsCommon pathogens

Disease Causative Agents Questions

Multiple choice evs science of kitchen balanced diet and malnutrition assimilation of food components and importance of food skeletal system and muscles assimilation of food and egestion busy at work - our internal organs

One of the following is not a common disorder associated with digestive system.

  1. Tetanus

  2. Diarrhoea

  3. Jaundice

  4. Dysentery
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Tetanus also called lockjaw disease is a serious bacterial infection that causes painful muscle spasms and can even lead to death, while diarrhea, jaundice, dysentery are disorders related to the digestive system.

So, the correct option is 'Tetanus'.

Multiple choice biology hygiene - a key to healthy life water borne disease basics of water pollution sewage treatment

Which one of the following diseases is not due to contamination of water ?

  1. Hepatitis-B

  2. Jaundice

  3. Cholera

  4. Typhoid
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hepatitis B is a viral infection. It shows symptoms like nausea, vomiting, weakness, fatigue, etc. It is a type of liver infection that develops liver cirrhosis at a later stage. It also increases the risk of developing liver failure or cancer. It is spread through sexual contact or from mother to fetus. 

So, option A is the correct answer.

Multiple choice biology hygiene - a key to healthy life water borne disease basics of water pollution sewage treatment

Describe the causative agent,symptoms,treatment and preventive measure of any two of the following human diseases:

  1. Dysentery

  2. Dengue fever

  3. Pneumonia

  4. Filaria
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Dysentery:
Causative agent-Entamoeba histolytica 
Symptoms- Constipation, abdominal pain and cramps, stools with mucus and blood.
Treatment and preventive measure- 
Useful drugs are metronidazole or tinidazole.
Avoiding contaminated food and water as these are the main source of infection. Houseflies are the mechanical carriers and transmit the parasite from the infected person to the foods and contaminate them.

Filariasis:
Causative agent- filarial nematodes, Wuchereria bancrofti and Wuchereria malayi  . The infection is caused by different species of mosquitoes like Culex, Aedes etc.
Symptoms- when the larvae of the parasite enter the human body through the bite of a mosquito and migrate to the peripheral lymphatic system and then to lymph nodes and then to large lymph vessels and obstruct the flow.There is oedema of the affected area. The lower extremities swell and resemble the feet of an elephant. Genital organs are also often affected and get deformed.
Treatment and preventive measure-
Useful drugs heterozan, MSF and diethylcarbamazine.
Also, it's important to protect from the bite of a mosquito as they are the main vectors of this parasite.

Multiple choice biology hygiene - a key to healthy life water borne disease basics of water pollution sewage treatment

which of the following is not a water borne disease?

  1. Diarrhea

  2. gastroenteritis

  3. Typhoid

  4. All
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Several diseases specially diarrhea, gastroenteritis, typhoid, dysentery are very common in areas deficient in proper water supply.
At many places, water from hand -pumps and other sources is contaminated. At certain places, harmful mineral contents in water obtained through wells or
hand pumps cause health problems.

Multiple choice biology for a pollution free nation water borne disease hygiene - a key to healthy life basics of water pollution

Which is not a water borne disease?

  1. Asthma

  2. Cholera

  3. Amoebiasis

  4. Typhoid
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Asthma is a common long-term inflammatory (allergic) disease of the airways of the lungs. It is characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm. Symptoms include episodes of wheezing, coughing, chest tightness, and shortness of breath. These episodes may occur a few times a day or a few times per week. There is no cure for asthma. Symptoms can be prevented by avoiding triggers, such as allergens and irritants, and by the use of inhaled corticosteroids.

So, the correct answer is 'Asthma'.

Multiple choice biology for a pollution free nation water borne disease hygiene - a key to healthy life basics of water pollution

Which of the following is a water borne disease?

  1. T.B

  2. Hepatitis

  3. Small pox

  4. Cancer
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hepatitis is an inflammation of the liver tissue. Symptoms include yellow discolouration of the skin and whites of the eyes, poor appetite, vomiting, tiredness, abdominal pain, or diarrhoea. Hepatitis may be caused by viruses. There are five main types of viral hepatitis - type A, B, C, D, and E.. Hepatitis A and E are mainly spread by contaminated food and water. Hepatitis B is mainly sexually transmitted.  Both hepatitis B and C are commonly spread through infected blood such as may occur during needle sharing by intravenous drug users. Hepatitis D can only infect people already infected with hepatitis B.

So, the correct answer is 'Hepatitis'.

Multiple choice biology for a pollution free nation water borne disease hygiene - a key to healthy life basics of water pollution

Diarrhea is an example of 

  1. Air borne disease

  2. Water borne disease

  3. Soil borne disease

  4. All
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Several diseases specially diarrhea, gastroenteritis, typhoid, dysentery are very common in areas deficient in proper water supply.
At many places, water from hand -pumps and other sources is contaminated. At certain places, harmful mineral contents in water obtained through wells or
hand pumps cause health problems.

Multiple choice civics public health and the government role of the government in health food security and related aspects food security

We need safe drinking water to prevent which of the following water-borne disese, which is prevalent in India?

  1. diarrhoea

  2. dysentery

  3. cholera

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

India has one of the largest number of cases of diseases such as diarrhoea, dysentery, cholera. Over 1,600 Indians, most of them children below the age of five, reportedly die everyday because of water-related diseases. These deaths can be prevented if  people have access to safe drinking water. 

Multiple choice biology kingdom monera, protista and fungi mycorrhiza classification of fungi useful and harmful microbes

St. Anthony's fire disease is caused by :

  1. Bacteria

  2. Fungus

  3. Nematode

  4. Polychaete
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ergotism is the effect of long-term ergot poisoning, traditionally due to the ingestion of the alkaloids produced by the Claviceps purpurea fungus that infects rye and other cereals, and more recently by the action of a number of ergoline-based drugs.

So, the correct answer is 'Fungus'

Multiple choice botany bacteria bacteria - friend and foe useful and harmful bacteria bacteria; benefits and harmful effects

Which of the following disease is caused by Salmonella?

  1. Polio

  2. T.B

  3. Tetanus

  4. Typhoid
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Typhoid is a bacterial infection that is caused by the bacteria Salmonella typhi. Symptoms include high fever, diarrhea, vomiting, headache, abdominal pain. It is spread by food or water contaminated with the feces of an infected person. 

Thus, the correct answer is 'Typhoid.'

Multiple choice botany bacteria bacteria - friend and foe useful and harmful bacteria bacteria; benefits and harmful effects

Identify the disease caused by bacteria from the following

  1. Amoebic dysentery

  2. Arthritis

  3. Beri-beri

  4. Diphtheria
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Amoebic dysentery is caused by Entamoeba histolytica, a protozoan parasite.  Arthritis is an inflammation of joints. It is caused by attack on immune system, injury or metabolic abnormalities. Beriberi is a disease caused by a vitamin B$ _1$ deficiency. Diphtheria is an infectious disease caused by the bacterium Corynebacterium diphtheriae. 

Thus, the correct answer is 'Diphtheria.'