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Topic 5: Health, Disease and the Development of Medicines
5.1 Health and Disease
5.1.1 Communicable Diseases
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Communicable diseases are caused by
pathogens
and can be transmitted between people.
True
What do viruses require to replicate?
Host cells
What are non-communicable diseases caused by?
Factors like genetics
Bacteria are single-celled organisms that reproduce through binary
fission
Tuberculosis is an example of a communicable disease transmitted through airborne
droplets
Bacteria reproduce through
binary
fission.
How do parasites obtain nutrients?
From a host
Tuberculosis is spread through the
air
.
Innate immunity is highly specific to particular pathogens.
False
What is the role of memory cells in adaptive immunity?
Long-term protection
Regular handwashing is an example of a
hygiene
practice to prevent disease spread.
Surveillance involves monitoring disease
prevalence
to detect outbreaks.
Which vector transmits malaria to humans?
Mosquito
Match the disease type with its transmission mechanism:
Foodborne ↔️ Contaminated food
Waterborne ↔️ Contaminated water
Airborne ↔️ Droplets in the air
Vectors ↔️ Insects or animals
Viruses contain both DNA and RNA as genetic material
False
Arrange the following transmission mechanisms in order of decreasing directness:
1️⃣ Direct Contact
2️⃣ Airborne
3️⃣ Waterborne
4️⃣ Foodborne
5️⃣ Vectors
Waterborne diseases are often caused by contaminated food.
False
What is the primary function of the skin in innate immunity?
Physical barrier
Adaptive immunity responds immediately to pathogens.
False
What is the purpose of vaccination in disease prevention?
Build immunity
Public health
initiatives
educate communities on prevention measures.
True
Measles is a viral disease that can be prevented by vaccination.
True
Communicable diseases are caused by pathogens such as bacteria, viruses, fungi, or
parasites
Order the types of pathogens from smallest to largest based on size:
1️⃣ Viruses
2️⃣ Bacteria
3️⃣ Fungi
4️⃣ Parasites
What is direct contact an example of in disease transmission?
Physical touch
What type of organism are bacteria classified as?
Single-celled organisms
Fungi have cell walls made of
chitin
.
What is an example of a disease spread through direct contact?
Skin infections
The body's immune response is divided into innate and
adaptive
immunity.
B cells produce
antibodies
to neutralize pathogens.
Match the immunity type with its characteristic:
Innate Immunity ↔️ Non-specific and immediate
Adaptive Immunity ↔️ Specific and delayed
What is the goal of contact tracing in disease control?
Identify infected contacts
Tuberculosis is commonly spread through
airborne
transmission.
Match the communicable disease with its causative agent:
Influenza ↔️ Virus
Cholera ↔️ Bacteria
Malaria ↔️ Parasite
Match the type of disease with its cause:
Communicable Diseases ↔️ Pathogens
Non-Communicable Diseases ↔️ Genetic or lifestyle factors
Fungi have cell walls made of chitin and reproduce through
spores
.
True
What type of pathogen is responsible for HIV?
Virus
Within what type of cells do viruses replicate?
Host cells
Match the transmission mechanism with its description:
Direct Contact ↔️ Physical touch, kissing
Airborne ↔️ Via droplets or aerosols
Waterborne ↔️ Spread through contaminated water
Vectors ↔️ Insects carry pathogens
Which insect is a common vector for malaria?
Mosquito
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