Bacterial disease

• Biology
• Upper Secondary (Key Stage 4)
• GCSE

03:34

What type of pathogen is TMV?

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

03:34

What does TMV stand for?

1. Tobacco mosaic virus
2. Tropical mosaic virus
3. Tangerine mosaic virus
4. Tomato mosaic virus

Match the labels to their parts

Flagella

Cell wall

Cell membrane

Cytoplasm

Capsule

Free DNA

Plasmid

Match the parts of a cell to their function

plasmid

ribosomes

cell membrane

Flagella

Loop of DNA

cytoplasm

cell wall

Capsule

05:57

What is a major difference in DNA organization between bacteria and animal cells?

1. Bacteria have larger chromosomes
2. No membrane-bound nucleus in bacteria
3. Animal cells have circular DNA
4. Bacteria have more DNA strands

01:32

What does unicellular mean?

In the early 20th century, more than 30% of all deaths were due to infectious disease.
Explain why people are less likely to die from bacterial disease in the 21st century.

What is an important step to take after handling raw meat to prevent Salmonella?

1. Use hand sanitizer only
2. Wash hands and surfaces thoroughly with soap and water
3. Leave surfaces as they are
4. Wipe hands on a towel

Who is at higher risk of severe Salmonella illness?

1. Young children, elderly, and people with weakened immune systems
2. Athletes, vegetarians, pregnant women, teenagers

What is a key measure to prevent Salmonella infection?

1. Eating raw seafood
2. Thoroughly cooking food, especially poultry and eggs
3. Drinking unpasteurized milk
4. Sharing utensils with others

How is Salmonella most commonly spread?

1. Through contaminated food or water
2. By airborne transmission
3. Through mosquito bites
4. Through direct contact with infected individuals

What are common symptoms of Salmonella infection?

1. Nausea, vomiting, diarrhea, fever
2. Cough, headache, muscle pain, rash