Viruses, bacteria, fungi and protists that cause disease
9th grade (Year 10 in England) · 16 questions · Common Core: NGSS.HS-LS1-2 · England: GCSE Combined Science: Infection and response
Name
Date
Score/ 16
Question 1
Measles spreads quickly in crowded rooms. How?
- A. by mosquito bites
- B. through contaminated soil
- C. through plant roots
- D. droplets in the air from coughs and sneezes
Question 2
Under ideal conditions a bacterium divides every 20 minutes. A drop of milk starts with 10 bacteria. How many bacteria will there be after 3 hours?
Answer
Question 3
What type of pathogen causes Salmonella food poisoning?
- A. virus
- B. bacterium
- C. fungus
- D. protist
Question 4
Why can a virus not reproduce on its own?
- A. It must use the machinery inside a host cell
- B. It only reproduces in water
- C. It has no genetic material
- D. It is too big
Question 5
Under ideal conditions a bacterium divides every 30 minutes. A drop of milk starts with 2 bacteria. How many bacteria will there be after 2 hours?
Answer
Question 6
What type of pathogen causes cholera?
- A. virus
- B. bacterium
- C. fungus
- D. protist
Question 7
Why is malaria described as being spread by a vector?
- A. It is spread by shaking hands
- B. It spreads through the air when people sneeze
- C. Mosquitoes carry the protist from person to person
- D. It is caused by bad food
Question 8
Under ideal conditions a bacterium divides every 30 minutes. A drop of milk starts with 5 bacteria. How many bacteria will there be after 2 hours?
Answer
Question 9
What type of pathogen causes cholera?
- A. virus
- B. bacterium
- C. fungus
- D. protist
Question 10
Why is malaria described as being spread by a vector?
- A. It spreads through the air when people sneeze
- B. It is spread by shaking hands
- C. It is caused by bad food
- D. Mosquitoes carry the protist from person to person
Question 11
Under ideal conditions a bacterium divides every 20 minutes. A drop of milk starts with 10 bacteria. How many bacteria will there be after 3 hours?
Answer
Question 12
What type of pathogen causes malaria?
- A. virus
- B. bacterium
- C. fungus
- D. protist
Question 13
Which measure best reduces the spread of Salmonella food poisoning?
- A. using mosquito nets
- B. taking painkillers
- C. cooking chicken thoroughly and keeping raw meat apart
- D. wearing a face mask
Question 14
Under ideal conditions a bacterium divides every 30 minutes. A drop of milk starts with 1 bacterium. How many bacteria will there be after 3 hours?
Answer
Question 15
What type of pathogen causes cholera?
- A. virus
- B. bacterium
- C. fungus
- D. protist
Question 16
Why can a virus not reproduce on its own?
- A. It is too big
- B. It only reproduces in water
- C. It has no genetic material
- D. It must use the machinery inside a host cell
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