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WorksheetsExploring Microorganisms
Total questions: 15
Worksheet time: 8mins
What are the four main types of microorganisms?
algae, prions, yeast, helminths
fungi, bacteria, algae, nematodes
Bacteria, viruses, fungi, protozoa
bacteria, archaea, viruses, mycoplasma
Which microorganism is known for its ability to photosynthesize?
Cyanobacteria
Algae
Fungi
Euglena
What is the process called when bacteria reproduce by splitting in two?
Cell division
Binary fission
Mitosis process
Bacterial budding
Name a type of microorganism that can cause disease in humans.
Protozoa
Fungi
Bacteria
Viruses
What is the role of yeast in baking?
Yeast adds flavor to bread without affecting texture.
Yeast ferments sugars, producing carbon dioxide that causes dough to rise.
Yeast acts as a preservative to extend shelf life.
Yeast thickens the dough, making it denser.
How do viruses reproduce?
Viruses reproduce by dividing into smaller particles.
Viruses reproduce by merging with other viruses.
Viruses reproduce by infecting host cells and using the host's machinery to replicate.
Viruses reproduce by creating their own energy sources.
What is a beneficial effect of bacteria in the human gut?
They cause digestive issues and inflammation.
They aid in digestion and vitamin synthesis.
They inhibit nutrient absorption and metabolism.
They produce harmful toxins in the gut.
Which microorganism is commonly used in the production of yogurt?
Escherichia coli and Bacillus subtilis
Bifidobacterium longum and Lactococcus lactis
Lactobacillus bulgaricus and Streptococcus thermophilus
Candida albicans and Clostridium perfringens
What is the term for microorganisms that thrive in extreme environments?
Psychrophiles
Thermophiles
Extremophiles
Halophiles
Name a disease caused by a pathogenic fungus.
Blastomycosis
Candidiasis
Aspergillosis
Histoplasmosis
What is the primary method of reproduction for most fungi?
Reproduction by budding cells
Fragmentation of mycelium
Asexual reproduction through spores
Sexual reproduction through hyphae
How do antibiotics affect pathogenic bacteria?
Antibiotics inhibit growth or kill pathogenic bacteria by targeting specific cellular functions.
Antibiotics only affect viruses and do not target bacteria at all.
Antibiotics have no effect on pathogenic bacteria and allow them to thrive.
Antibiotics enhance the growth of pathogenic bacteria by providing nutrients.
What is the significance of nitrogen-fixing bacteria in agriculture?
They primarily promote the growth of weeds in agricultural fields.
Nitrogen-fixing bacteria are harmful and reduce crop yields.
They deplete soil nutrients by consuming organic matter.
Nitrogen-fixing bacteria are crucial in agriculture as they enhance soil fertility by converting atmospheric nitrogen into a usable form for plants.
Which microorganism is responsible for the fermentation process in beer?
Lactobacillus plantarum
Saccharomyces cerevisiae
Brettanomyces bruxellensis
Escherichia coli
What is the difference between bacteria and viruses?
Bacteria are living cells that can reproduce independently; viruses are non-living entities that need a host to replicate.
Bacteria are smaller than viruses and cannot cause disease; viruses are larger and can infect cells.
Bacteria are always harmful to humans; viruses are always beneficial to health.
Bacteria can only survive in water; viruses can thrive in any environment.
