Micro Organisms Flashcards
What are microorganisms?
Microorganisms are tiny living organisms that can only be seen with a microscope.
True or False: All microorganisms are harmful to humans.
False
Fill in the blank: Bacteria, viruses, fungi, and ______ are types of microorganisms.
protozoa
What is the main role of bacteria in the nitrogen cycle?
Bacteria convert nitrogen gas from the atmosphere into ammonia through nitrogen fixation.
List one beneficial use of fungi.
Fungi are used in the production of antibiotics, such as penicillin.
What is the structure that protects bacterial cells?
The cell wall
Multiple Choice: Which of the following is a type of virus? A) E. coli B) Influenza C) Yeast
B) Influenza
True or False: Viruses can reproduce on their own.
False
What is the process by which yeast cells convert sugars into alcohol called?
Fermentation
Fill in the blank: The study of microorganisms is known as ______.
microbiology
What type of microorganism is responsible for causing malaria?
Protozoa
Multiple Choice: Which of the following is not a characteristic of living organisms? A) Growth B) Reproduction C) Non-response to stimuli
C) Non-response to stimuli
What is a pathogen?
A pathogen is a microorganism that causes disease.
True or False: Antibiotics are effective against viruses.
False
Fill in the blank: The harmful effects of microorganisms can be prevented by ______.
hygiene practices
What is the role of decomposers in the ecosystem?
Decomposers break down dead organic matter and recycle nutrients back into the soil.
What are the two main types of bacteria based on their shape?
Cocci (spherical) and bacilli (rod-shaped)
Multiple Choice: Which of the following is a unicellular organism? A) Mushroom B) Amoeba C) Tree
B) Amoeba
True or False: All fungi are multicellular.
False
What is an example of a viral disease?
Influenza
Fill in the blank: The process of using microorganisms to break down pollutants is called ______.
bioremediation
What is the difference between aerobic and anaerobic bacteria?
Aerobic bacteria require oxygen to survive, while anaerobic bacteria do not.
Multiple Choice: Which microorganism is commonly used in baking? A) Bacteria B) Viruses C) Fungi
C) Fungi
What is the primary method of reproduction for bacteria?
Binary fission
True or False: All microorganisms can be seen with the naked eye.
False
What role do microorganisms play in the food chain?
Microorganisms are primary decomposers and are essential for nutrient cycling.
