Bacteria Flashcards
(15 cards)
What are bacteria?
Bacteria are single-celled microorganisms that can exist independently or as parasites.
True or False: All bacteria are harmful to humans.
False
What is the shape of cocci bacteria?
Spherical
Fill in the blank: Bacteria reproduce asexually through a process called __________.
binary fission
What is the primary component of bacterial cell walls?
Peptidoglycan
Which type of bacteria require oxygen to survive?
Aerobic bacteria
What is the role of bacteria in the nitrogen cycle?
They help in nitrogen fixation and decomposition.
Multiple Choice: Which of the following is NOT a method of bacterial reproduction? A) Binary fission B) Budding C) Mitosis D) Fragmentation
C) Mitosis
What are antibiotics used for?
To kill or inhibit the growth of bacteria.
True or False: Bacteria can develop resistance to antibiotics.
True
What is the term for bacteria that thrive in extreme environments?
Extremophiles
Fill in the blank: Bacteria that obtain energy from organic compounds are called __________.
heterotrophs
What is the function of plasmids in bacteria?
Plasmids carry genetic information and can confer advantages such as antibiotic resistance.
Multiple Choice: Which of the following diseases is caused by bacteria? A) Influenza B) Tuberculosis C) AIDS D) Malaria
B) Tuberculosis
What are the two main categories of bacteria based on cell wall composition?
Gram-positive and Gram-negative bacteria.
