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WorksheetsMicroorganisms: Helpful or Harmful
Total questions: 15
Worksheet time: 45mins
What is the difference between beneficial and harmful microorganisms?
Beneficial microorganisms help in processes like digestion, while harmful ones can cause diseases.
Both beneficial and harmful microorganisms are equally important for human health.
Beneficial microorganisms only exist in soil, while harmful ones are found in water.
Harmful microorganisms are always larger than beneficial ones.
What is one harmful effect of mold in homes?
It can cause respiratory issues and allergies.
It can improve indoor air quality.
It can enhance the aesthetic appeal of a home.
It can increase energy efficiency.
What is the importance of microorganisms in the ecosystem?
They recycle nutrients and support food webs.
They cause diseases in plants and animals.
They are only found in extreme environments.
They have no significant role in the ecosystem.
What mold is used to create the medicine Penicillin?
Beneficial mold
Toxic mold
Fungal mold
Pathogenic mold
What type of microorganisms help absorb nutrients from food for our digestion?
Pathogenic bacteria
Beneficial bacteria
Viruses
Fungi
What is the role of beneficial bacteria in our gut?
They help with digestion and nutrient absorption.
They produce harmful toxins.
They cause digestive diseases.
They have no effect on gut health.
What effect do certain bacteria have on teeth enamel?
They strengthen teeth enamel (Beneficial)
They have no effect on teeth enamel (Neutral)
They weaken teeth enamel (Harmful)
They cause teeth enamel to regenerate (Restorative)
What tool is used to view organisms too small to see with a magnifying lens?
Telescope
Binoculars
Microscope
Magnifying Glass
What is the term for the beneficial relationship between humans and certain microorganisms?
Symbiosis
Parasitism
Commensalism
Mutualism
What are plankton considered in the food chain?
A food source for small fish (Beneficial)
A type of predator
A primary consumer
A secondary consumer
What is a common harmful microorganism that can cause illness?
Pathogenic bacteria
Beneficial bacteria
Viruses
Fungi
What is one way that microorganisms are used in food production?
Fermentation (e.g., making yogurt or cheese)
Pasteurization (e.g., heating milk)
Freezing (e.g., preserving fruits)
Dehydration (e.g., drying herbs)
What is the term for microorganisms that can cause disease?
Pathogens
Bacteria
Viruses
Antibodies
What is the role of yeast in baking?
Yeast helps bread rise by producing carbon dioxide.
Yeast adds flavor to the bread.
Yeast prevents the bread from becoming too dense.
Yeast is used to color the bread.
What is the process called when microorganisms break down dead organic matter?
Decomposition
Photosynthesis
Respiration
Fermentation
