Environmental Microbiology Quiz

Which of the following is a prokaryotic microorganism?

• Yeast

• Bacteria

• Amoeba

• Paramecium

What structure helps bacteria move?

• Capsule

• Nucleus

• Flagella

• Pili

Which of the following diseases is caused by a virus?

• Tuberculosis

• Influenza

• Ringworm

• Cholera

What is the main role of decomposer microorganisms in nature?

• Producing oxygen

• Fixing nitrogen

• Breaking down dead matter

• Causing disease

Which of the following is used to grow microorganisms in a lab?

• Distilled water

• Petri dish with agar

• Bunsen burner

• Microscope

Which condition is least likely to support the growth of bacteria?

• Warm temperature

• Moist environment

• High acidity (low pH)

• Nutrient-rich medium

Antibiotics are effective against which type of microorganisms?

• Viruses

• Fungi

• Protozoa

• Bacteria

What part of the microscope adjusts the amount of light that passes through the sample?

• Eyepiece

• Objective lens

• Diaphragm

• Stage

Which of the following microorganisms is commonly used in baking and brewing?

• Escherichia coli

• Streptococcus

• Saccharomyces cerevisiae

• Clostridium botulinum

What is the best way to prevent the spread of bacterial infections?

• Taking painkillers

• Drinking clean water

• Washing hands regularly

• Using sunscreen