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Microbiology Lecture Exam 1. Ch. 1, 3, 4, 5 Questions and Answers
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Microbiology Lecture Exam 1. Ch. 1, 3, 4, 5
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Microbiology Lecture Exam 1. Ch. 1, 3, 4,5
Give examples of microbes. - answer Bacteria, yeast, viruses, protozoa, fungi, and
helminths.
A microorganism, usually a bacterium causing disease or fermentation. - answer
Microbe
Highly adherent, colonizing glycocalyx - answer Biofilm
Microorganisms associated with human disease: parasites, fungi, bacteria, viruses. -
answer Pathogen
A sequence of nucleotides forming part of a chromosome. - answer Gene
Describe how microbes are classified. - answer Prokaryotic or eukaryotic (though
prokaryotes are all microorganisms) and they are named by genus and species.
Describe the role and impact of microbes on earth and humans (good and bad.) -
answer Microorganisms have roles in making food and medicine, but also have many
roles in disease.
Describe Germ Theory - answer Human disease could arise from infection caused by
microorganisms.
What domain does yeast belong to? - answer Eukaryote
List the macromolecules that contribute to cellular composition. - answer Lipids,
proteins, nucleic acids, and carbohydrates.
The shape of a bacteria. - answer Morphology
The circular bacterial morphology. - answer Coccus
Also called a "rod." - answer Bacillus
Cheese-puff shaped. - answer Vibrio
What are the most common morphologies? - answer Coccus and bacillus
Corkscrew - answerSpirochete
, A chain arrangement – answer Filamentous
A sign wave - answer Spirillum
How the bacteria cells are arranged, some are loners and some travel together as a
gang. - answer Arrangement
2 (arrangement) – answer Diplo
4 (arrangement) - answer Tetrad
Chain (arrangement) – answer Strepto
Grapes (arrangement) – answer Staphylo
8 (arrangement) – answer Sarcina
What is the function of the flagellum? - answer Motility and biofilm formation
Define chemotaxis. - answer The movement toward a chemical gradient.
What is the flagellum made of? - answer Protein
How does the flagellum move? - answer In a circular motion
A layer of bacteria that exudes sugars. - answer Biofilm
All bacteria have a __________. - answer Morphology
Not all bacteria have an ___________. - answer Arrangement
Polar end, one appendage – answer Monoicous
Polar end, multiple appendages – answer Ophiotrichids
Two appendages - answerAmphitrichous
Appendages all over the surface - answerPeritrichous
What are the four types of macromolecules? - answerCarbohydrates, nucleic acids,
proteins, and lipids.
Which macromolecules are commonly used for energy production? -
answerCarbohydrates and lipids.
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