Biology ยท Science General

Disease Causative Agents

2,531 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

Which of the following is a common food safety risk associated with raw meat and poultry?

  1. Salmonella

  2. E. coli

  3. Campylobacter

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

Salmonella, E. coli, and Campylobacter are all common food safety risks associated with raw meat and poultry.

Multiple choice

What is the primary cause of foodborne illness outbreaks?

  1. Improper food handling and storage

  2. Pesticides and herbicides

  3. Climate change

  4. Genetically modified foods
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Improper food handling and storage, such as not washing hands before handling food or leaving food out at room temperature for too long, are the primary causes of foodborne illness outbreaks.

Multiple choice

Which of the following is a common cause of foodborne illness in pets?

  1. Salmonella

  2. E. coli

  3. Listeria

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

Salmonella, E. coli, and Listeria are all common bacteria that can cause foodborne illness in pets.

Multiple choice

Which of the following is NOT a common pediatric illness?

  1. Asthma

  2. Diabetes

  3. Cystic Fibrosis

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

Diabetes is not typically considered a common pediatric illness, as it is more prevalent in adults.

Multiple choice

What is the cause of psoriasis?

  1. An overactive immune system

  2. A bacterial infection

  3. A fungal infection

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

Psoriasis is an autoimmune disease that causes the skin cells to grow too quickly. This results in red, scaly patches of skin.

Multiple choice

What is the cause of hives?

  1. An allergic reaction

  2. A viral infection

  3. A bacterial infection

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

Hives are a type of skin rash that is caused by an allergic reaction. The rash can be itchy and uncomfortable.

Multiple choice

Which of the following is a common type of skin rash that is caused by a bacterial infection?

  1. Impetigo

  2. Cellulitis

  3. Erysipelas

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

Impetigo, cellulitis, and erysipelas are all common types of skin rashes that are caused by a bacterial infection.

Multiple choice

Which of the following is a common type of skin rash that is caused by a viral infection?

  1. Herpes simplex

  2. Varicella-zoster

  3. Measles

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

Herpes simplex, varicella-zoster, and measles are all common types of skin rashes that are caused by a viral infection.

Multiple choice

What is the most common type of skin infection?

  1. Acne

  2. Eczema

  3. Psoriasis

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

Acne is the most common type of skin infection, affecting up to 85% of people at some point in their lives.

Multiple choice

What was the name of the pandemic that occurred in the Pacific Northwest in 2020?

  1. The COVID-19 Pandemic

  2. The Spanish Flu Pandemic

  3. The Black Death Pandemic

  4. The Great Plague of London
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The COVID-19 Pandemic is a global pandemic that began in 2020. The pandemic is caused by the SARS-CoV-2 virus. The virus has caused widespread illness and death around the world. The Pacific Northwest has been one of the hardest-hit regions in the United States.

Multiple choice

Which of the following is NOT a common foodborne illness?

  1. Salmonella

  2. E. coli

  3. Norovirus

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

Influenza is a respiratory illness, not a foodborne illness.

Multiple choice

Which of the following is not a type of infectious disease?

  1. Bacterial infection

  2. Viral infection

  3. Fungal infection

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

Cancer is not a type of infectious disease. It is a group of diseases characterized by the uncontrolled growth and spread of abnormal cells.

Multiple choice

What is the primary mechanism by which bacteria cause disease in humans?

  1. Direct cell damage

  2. Toxins

  3. Immune system activation

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

Bacteria often cause disease by producing toxins, which are harmful substances that can damage host cells and tissues, leading to various symptoms and complications.

Multiple choice

What is the term used to describe the ability of a pathogen to be transmitted from one host to another?

  1. Pathogenicity

  2. Virulence

  3. Infectivity

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

Transmissibility refers to the ability of a pathogen to be transferred from an infected host to a susceptible host, either through direct contact, indirect contact, or via vectors.

Multiple choice

What is the term used to describe the ability of a pathogen to cause severe disease or death in a host organism?

  1. Pathogenicity

  2. Virulence

  3. Infectivity

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

Virulence refers to the degree of pathogenicity of a microorganism, indicating its ability to cause severe disease or death in a host organism.