Microbiology Test 1
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Prep for Micro test 1 Chapters 1 - 6 from Burton's Microbiology for the Health Sciences by: Paul G. Engelkirk Janet Duben-Engelkirk
- 1.Define opportunistic pathogens.
- 2.Explain how to calculate the total magnification of the compound light microscope.
- 3.Explain the function of glycocalyx capsules as it relates to bacterial cells.
- 4.Define and explin genotype and phenotype.
- 5.Microbiology is the study of
- 6.Idividual microbes can be observed with the use of what?
- 7.Two major categories of microbes are called what?
- A.
Eucaryotes and Procaryotes
- B.
Acellular and cellular
- C.
Pathogentic and Nonpathogenic
- 8.Another name for acellular microbes are _____ and another name for cellular microbes are ____.
- 9.3 Microbes that do not cause disease are known as pathogens.
- A.
True
- B.
False
- 10.Nondisease causing microbes are considered to be nonpathogenic.
- A.
True
- B.
False
- 11.Microbes that live on and in the human body are referred to as our ____.
- 12.Pathogens cause 2 major types of diseases: infectious diseases and microbial diseases.
- A.
True
- B.
False
- 13.Pathogens cause what 2 major types of diseases?
- 14.The size of bacteria are expressed in nanometeres whereas the sizes of viruses are expressed in micrometers.
- A.
True
- B.
False
- 15.What is used to measure the dimensions of objects being viewed with a compund light microscope?
- A.
Lens x Stage
- B.
An Ocular Lens
- C.
Ocular Micrometer
- D.
All of the Above
- 16.A simple microscope contains only ___ magnifying lens, whereas as compound microscope contains ___ magnifying lens.
- 17.A simple microscope contains 4 different magnifying lens.
- A.
True
- B.
False
- 18.The resolving power of the unaided human eye is 0.2 mm
- A.
True
- B.
False
- 19.When using a brightfield microscope a person observes objects _______ backgroud. When using a darkfield microscope a person observes objects _______background.
- 20.The resolving power of a transmission electron microscope is what?
- A.
Approximately 0.2 nanometeres
- B.
1 million times better that the human eye
- C.
1,000 times better than the resolving power of a compound microscope.
- D.
Both A and C
- E.
All of the Above
- 21.Scanning electron microscopes have a resolving power of approxiamtely 20 nanometers which is about 100 times stronger than the resolving power of a transmission electron microscope.
- A.
True
- B.
False
- 22.Photographs taken using compound light microscopes are called what?
- 23.Photographs taken using a transmission electron microscope or a scanning electron microscope are called transmission electron micrographs and scanning electron micrographs.
- A.
True
- B.
False
- 24.What do Eucaryote cells possess that Procaryote cell do not?
- A.
A true nucleus
- B.
A cell wall
- C.
Ability to be selectively permeable
- D.
Both B and C
- 25.A "true nucleus" consists of neucleoplasm, chromosomes, and a nuclear membrane.
- A.
True
- B.
False
- 26.What are the three parts of a "true nucleus"?
- 27.An organisims complete collection of genes is referred to as what?
- A.
Genome
- B.
Genotype
- C.
A complete cell
- D.
A true nucleus
- E.
Both A & B
- F.
Both C & D
- 28.___are the sites of protein synthesis.
- 29.Which organelle is considered to be a "packaging plant" ?
- A.
Rough ER
- B.
Smooth ER
- C.
Golgi Apparatus
- D.
Mitochondria
- 30.Which organelle can be considered "power plants" or "energy factories"
- A.
Rough ER
- B.
Smooth ER
- C.
Golgi Apparatus
- D.
Mitochondria
- 31.What is the site of photosynthesis?
- 32.If a eucaryotic cell is motile is does not posses any flagella or cillia.
- A.
True
- B.
False
- 33.Bacterial cells are commonly surrounded by a glycocalyx. What are the two types of gycocalyx?
- 34.Bacteria never posses any cilia.
- A.
True
- B.
False
- 35.What are organelles of attachment, that enable bacteria to adhere to surfaces?
- A.
Cilia
- B.
Glycolipids
- C.
Glycoproteins
- D.
Pili
- 36.____ enables the transfer of genetic material from one bacterial cell to another.
- 37.A sex pilus enables what?
- 38.What enables bacteria to survive asverse conditions such as temperate extremes, dessication, and lack of nutients?
- 39.Endospores enable bacteria to do what?
- 40.How do bacteria reproduce?
- A.
Binary Fission
- B.
Mitosis
- C.
Meosis
- 41.The length of time it takes for one bacteria cell to split into two cells is referred to as what?
- A.
Cell Life
- B.
Cytokinesis
- C.
Generation Time
- D.
Mitosis
- 42.Name the 3 domains in the 3-Domain system.
- A.
Archaea
- B.
Bacteria
- C.
Eucarya
- D.
Procarya
- E.
Fungi
- 43.Relatedness among organisims is determined by analysis of genes that code for small subunit ribosomes DNA.
- A.
True
- B.
False
- 44.Viruses are not alive so in order to replicate themselves they must invade a live host.
- A.
True
- B.
False
- 45.All viruses have to have both DNA and RNA present.
- A.
True
- B.
False
- 46.Since viruses are not considered to be living organisims, they are referred to as what?
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