Communicable Diseases Chapter 3.1.1

Which microorganism is known to multiply quickly through a process called binary fission?

What is a common symptom of Measles that can lead to serious complications?

What method of pathogen transmission involves the ingestion of contaminated water?

Which of the following statements applies to fungi?

What is a crucial reason viruses are considered particularly dangerous?

Which practice can help reduce the spread of pathogens effectively?

From which of the following sources can pathogens NOT be transmitted?

What type of organisms are protists that cause illness in humans and animals?

Which of the following statements is true regarding how bacteria harm the host's cells?

Droplet infection is primarily associated with which mode of transmission?

Communicable Diseases (3.1.1)

Pathogens are microorganisms causing infectious diseases.
Include viruses, bacteria, protists, and fungi.
Spread through direct contact, water, or air.

Viruses (3.1.1.1)

Very small
Invade cells and use their mechanisms to replicate.
Cell bursting releases virus copies.
Cell damage causes illness.

Bacteria (3.1.1.2)

Small
Multiply rapidly through binary fission.
Produce toxins damaging cells.

Protists (3.1.1.3)

Some are parasitic, residing inside hosts.
Cause damage within the host.

Fungi (3.1.1.4)

Can be single-celled or have thread-like structures (hyphae).
Reproduce through spores.
Some are parasitic.

Spread of Pathogens (3.1.1)

Direct contact: Contaminated surfaces, bodily fluids, direct skin contact.
Water: Contaminated water.
Air: Droplet infection: Pathogens carried in droplets released during sneezing, coughing, or talking.

Reducing Spread of Pathogens (3.1.1)

Improve hygiene (handwashing, disinfectants).
Isolate raw meat.
Avoid contact with infected individuals.
Using tissues and handkerchiefs when sneezing
Use pesticides to control vectors (animals that carry pathogens)

Viral Diseases (3.1.2)

Viruses are highly dangerous, as they infect various cell types.
Current lacks of cures.

Measles (3.1.2.1)

Symptoms: Fever, red rash, potentially leading to pneumonia, encephalitis, and blindness.
Spread through droplet infection.

Explore the world of communicable diseases and the pathogens that cause them. This quiz will cover viruses, bacteria, protists, and fungi, along with their modes of spread and prevention tactics. Test your knowledge on how these microorganisms impact health and safety.