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- 1. Multiple ChoiceA preparation of weakened or killed pathogens.BacteriaAntibiotic ResistanceVaccineCapsid
- 2. Multiple ChoiceWhich of the following is an example of a harmful microorganism?Fungi used as antibioticsEcoli on food that makes people sickBacteria found in yogurt.Microorganisms helping dead matter to decay
- 3. Multiple ChoiceA student sets up a compost bin outdoors. Inside the bin microorganisms convert the student’s vegetable and paper scraps into rich fertilizer. Which of the following best describes the role that these microorganisms play in natural habitats?The microorganisms help balance the numbers of producers and consumers.The microorganisms help keep nutrients cycling through the ecosystem.The microorganisms turn solar energy into sugars.The microorganisms function as autotrophs.
- 4. Multiple Choice
______________ helps us digest our food and convert it into simple form.
Bacteria
Fungi
Protozoa
Algae
- 5. Multiple ChoiceBacteria is known as ______________ in an ecosystem when feeding on dead organisms.decomposersherbivorespathogensinfections
- 6. Multiple Choice
Food preservation can not be done by
adding salt
adding sugar
drying under the sun
adding kerosene
- 7. Multiple ChoiceFungi is benefical to us because of the following reason:They are a source of oxygenThey can clean up pollutionThey are a source of antibioticsThey help to clean run off from waste
- 8. Multiple ChoiceWhich of the following statements are true?All microorganisms are badAll microorganisms are goodSome microorganisms are harmful, while some can be helpfulMicroorganisms are too small to do anything to anyone
- 9. Multiple ChoiceWhich is not an example of a harmful microorganism?Mold growing on a kitchen spongeBacteria found in yogurtBacteria that causes turberculosisSalmonella on uncooked chicken
- 10. Multiple Choice
What is an antibiotic?
a rapid spread of a disease around the world
a type of bacteria living in human cells
a medicine that attacks harmful microbes
a disease for which there is no known cure
- 11. Multiple Choice
What do bacteria and viruses have in common?
They both only live for twenty-four hours
They both are the same size.
They both can cause serious infectious diseases
They both are good and help our immune system.
- 12. Multiple Choice
Are microorganisms helpful or harmful?HelpfulHarmfulBothNeither - 13. Multiple ChoiceYeast makes bread, rolls and cakes rise.TrueFalse
- 14. Multiple ChoiceA piece of bread has a tiny spot of mold growing on it. Is it safe to eat?YesNo
- 15. Multiple Choice
Yeast is used for making bread. Yeast is a
plant.
spice.
fungi.
bacteria.
- 16. Multiple Choice
Which statement is NOT true?
Microorganisms help dead things decay.
Microorganisms only live in soil.
Microorganisms cause disease.
Microorganisms are used to make cheese.
- 17. Multiple Choice
1. Which of the following reproduces only inside a host cell?
Bacteria
Amoeba
Virus
Fungus
- 18. Multiple Choice
Pasteurization is a
low temperature treatment
high temperature treatment
both low and high temperature treatment
streaming treatment
- 19. Multiple Choice
Bacteria is known as ______________ in an ecosystem when feeding on dead organisms.
decomposers
herbivores
pathogens
infections
- 20. Multiple Choice
This microorganism uses host cells to make copies of itself
Protozoa
Virus
Fungus
Bacteria
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