CHAPTER 1 DONE Flashcards
chapters 1-5 quiz/ assignments
Which of the following is not considered a microorganism?
Mosquito
All microorganisms are best defined as organisms that ______.
are too small to be seen with the unaided eye
Living things ordinarily too small to be seen with the unaided eye are termed _____.
Microorganisms
Cells, like bacteria and archaea, that do not have a nucleus in their cells have traditionally been called _____.
prokaryotes
Disease-causing microorganisms are called _____.
pathogens
Which of the following is a unique characteristic of viruses that distinguishes them from the other major groups of microorganisms?
Lack cell structure
Helminths are _____.
parasitic worms
Which group of microorganisms is composed only of hereditary material wrapped in a protein covering?
Viruses
Koch’s postulates are criteria used to establish that ______.
a specific microbe is the cause of a specific disease
The surgeon who advocated using disinfectants on hands and in the air prior to surgery was _____.
Joseph Lister
Sterility refers to ______
having an absence of any life forms and viral particles
Which scientist showed that anthrax was caused by the bacterium, Bacillus anthracis?
Robert Koch
Which scientific field is involved in the identification, classification, and naming of organisms?
Taxonomy
.Which of the following is a scientific name?
Streptococcus pyogenes
Which scientific name is written correctly?
Staphylococcus aureus (italics)
ATP is best described as _____.
the energy molecule of cells
Characteristics shared by all cells include _____.
All of these choices are correct.
Which of the following statements is correct regarding the relationship between humans and microbes?
Not only do the majority of colonizing bacteria cause no harm to humans, the relationship is beneficial for both microbe and human host
Which of the following statements correctly determines the process when following the scientific method?
Formulate question, conduct research, propose hypothesis, test hypothesis