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jayzco
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1. Which of the following is not considered a microorganism?
a. Algae.
b. Bacterium
c. Protozoan
d. Mushroom
Mushroom
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An area of microbiology that is concerned with the occurrence of disease in human populations is
epidemiology
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Which process involves the deliberate alteration of an organism’s genetic material?
recombinant DNA
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A prominent difference between prokaryotic and eukaryotic cells is the
presence of a nucleus in eukaryotes
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5. Which of the following parts was absent from Leeuwenhoek’s microscopes?
Condenser
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Abiogenesis refers to
Spontaneous generation of organisms from nonliving matter
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7. A hypothesis can be defined as
A scientific explanation that is subject to testing
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Which early microbiologist was most responsible for developing standard microbiology laboratory techniques?
Robert Koch
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Which scientist is most responsible for finally laying the theory of spontaneous generation to rest?
Louis Pasteur
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Define a theory
hypothesis has been thoroughly supported by long-term study and data
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What is the order of taxonomic categories?
Domain, kingdom, phylum, class order, family, genus, species
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By definition, organisms in the same _________ are more closely related than those who are in the same __________.
A. Order, family
B. Class, phylum
C. Family, genus
D. Phylum, division
B. class, phylum (this multiple choice question has been scrambled)
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13. Which of the following are prokaryotic?
A. Both A and B
B. Protists
C. Bacteria
D. Archaea
A. Both A and B (this multiple choice question has been scrambled)
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14. Order the following items by size using number: 1=smallest and 8=largest.
3 AIDS
7 Amoeba
4 Rickettsia
2 Protein
8 Worm
5 Coccus-shaped bacterium
6 White Blood cell
1 Atom
- Atom
- Protein
- AIDS
- Rickettsia
- Coccus bacterium
- White blood cell
- Amoeba
- Worm
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15. Which of the following is not an emerging infectious disease?
a. Avian influenza
b. Sars
c. Common cold
d. AIDS
C Common Cold
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16 How would you classify a virus?
A. Neither
B. Prokaryotic
C. Eukaryotic
A. Neither (this multiple choice question has been scrambled)
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1. Which structure is not a component of all cells?
a. Cell wall
b. Cell membrane
c. Genetic material
d. Ribosomes
A Cell wall
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2. Viruses are not considered living things because
They are not cells, cannot reproduce, lack metabolism
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3. Which of the following is not found in all bacterial cells?
A. Ribosomes
B. Actin cytoskeleton
C. A nucleoid
D. Cell membrane
B. Actin cytoskeleton (this multiple choice question has been scrambled)
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4. The major locomotor structures in bacteria are
Flagella
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5. Pilli are tubular shafts in _____ bacteria that serve as a means of ______.
A. Gram positive, genetic exchange
B. Gram positive, attachment
C. Gram-negative, genetic exchange
D. Gram-negative, protection
C. Gram-negative, genetic exchange (this multiple choice question has been scrambled)
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6. An example of glycocalyx is
A. A capsule
B. Pilli
C. Cell wall
D. Outer membrane
A. Capsule (this multiple choice question has been scrambled)
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Which of the following is a primary bacterial cell wall function?
Support
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8. Which of the following is present in both gram-positive
and gram-negative cell walls?
a. An outer membrane
b. Peptidoglycan
c. Teichhoic acid
d. Lipopolysaccharides
b. Peptidoglycan
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Bacterial endospores function in
survival
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An arrangement in packets of eight cells is described as a
Sarcina
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15. Which stain is used to distinguish differences between the cell walls of medically important bacteria?
Gram stain
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First living cells were
archae
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1. Both flagella and cilia are found in
A. Fungi d. Both b and c
B. Algae
C. Protozoa
C. Protozoa (this multiple choice question has been scrambled)
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Features of nuclear envelope include
A. Ribosomes
B. Pores that allow communication with the cytoplasm
C. B and C
D. A double membrane structure
E. All of the above.
C. B and C (this multiple choice question has been scrambled)
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What is embedded in rough endoplasmic reticulum?
Ribosomes
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5. Yeasts are _____ fungi, and molds are _____ fungi.
Unicellular, filamentous
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In general fungi derive nutrients through
A) Engulfing bacteria
B) Parasitism
C) Photosynthesis
D) Digesting organic substrates
D) Digesting organic substrates (this multiple choice question has been scrambled)
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9. Which characteristic(s) is/are not typical of protozoan cells?
A. Spore
B. Trophozoite
C. Locomotor organelle
D. Cyst
A. Sproe (this multiple choice question has been scrambled)
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The protozoan trophozite is which stage?
Active feeding stage
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A nutrient essential to an organisms metabolism that cannot be synthesized itself is
Growth Factor
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An organism that can syntehsize all its required organic components from CO2 is a
A. Chemoheterotroph
B. Photoautotroph
C. Photoheterotroph
D. Chemoautotroph
B. Photoautotroph (this multiple choice question has been scrambled)
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Chemoautotrophs can survive on ___ alone
Minerals and CO2
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6. Which of the following is true for all organic organisms?a. They require organic nutrients They require inorganic nutrients They require growth factors They require oxygen gas
The require inorganic nutrients
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A pathogen would most accurately be described as a
Parasite
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A cell exposed to a hypertonic environment will ____ by osmosis.
A. Neither gain or lose
B. Burst
C. Gain water
D. Lose water
D. Lose water (this multiple choice question has been scrambled)
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In a viable plant count, each ______ represents a _______ from the sample population
colony, cell
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_______ is another term for biosynthesis.
Anabolism
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Catabolism is a form of metabolism in which _____ molecules are converted into ____ molecules.
Large, small
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Energy in biological systems generally are
chemical
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Most oxidation reactions involve
removal of electrons and hydrogens
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What does an microbial agent do
Destroys microorganisms
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What is a process that destroys the non-spore forming contaminants on objects is
disinfection
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High temperatures ___ and low temperatures___
Kills cells, inhibit cell growth
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The temperature-pressure combination for an autoclave is
b. 121oC and 15 psi
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1. A compound synthesized by bacteria or fungi that destroys or inhibits the growth of other microbes is
antiobiotic
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3. Microbial resistance to drugs is acquired through
Transduction
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What is a plasmid?
RNA that is not essential to cell growth that can send adaptations to other bacteria
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Are protistas prokaryotic?
No!
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Whats the difference between eukaryotic and prokaryotic cells
Both cell types have many, many ribosomes, but the ribosomes of the eukaryotic cells are larger and more complex than those of the prokaryotic cell. Ribosomes are made out of a special class of RNA molecules (ribosomal RNA, or rRNA) and a specific collection of different proteins. A eukaryotic ribosome is composed of five kinds of rRNA and about eighty kinds of proteins. Prokaryotic ribosomes are composed of only three kinds of rRNA and about fifty kinds of protein
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What are protists?
Algae and fungi
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Classify protozoa
- Mastigophora- Move by flagella alone
- Sarcodina- Pseudopods
- Ciliophora- Cilia
- Apicomplexa- Glide, almost dont have motility
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