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Microbiology zamora > Exam 1 > Flashcards

Exam 1 Flashcards

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Biology 101 flashcards
1
Q

The enzyme that causes the breakdown of the cell wall by cleaving the two amino acids in the glycan layer of the peptidoglycan is:a) cellulase b) glycosilase c) penicillin d) lysozyme e) amylase

A

d) lysozyme

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2
Q

The process through which endospores are formed from vegetative cells is called: a) sporulation b) germination c) chemotaxis d) osmosis

A

a) sporulation

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3
Q

A rigid layer that is composed of sugars and amino acids found in the cell wall of eubacteria is the: a) glycocalyx b) periplasmic space c) teichoic acids d) peptidoglycan

A

d) peptidoglycan

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4
Q

The presence of membrane enclosed organelles is characteristic of: a) prokaryotic cells b) eukaryotic cells c) all cells d) viruses

A

b) eukaryotic cells

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5
Q

This person developed an organic arsenical compound as an effective cure of syphilis: a) Erlich b) Henle c) Pasteur d) Lister e) Waxman

A

a) Erlich

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6
Q

The molecule most commonly used to discern evolutionary relationships between organisms is: a) tRNA b) the rec A protein c) rRNA d) DNA polymerase II

A

c) rRNA

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7
Q

You are working for Jack Daniels distillery and want to make ethanol form glucose. The organism that you would use for this process is: a) Pneumocystic carinii b) Methanococcus jannaschii c) Escherichia coli d) Chlamydomonas sp. e) Saccharomyces cerevisiae

A

e) Saccharomyces cerevisiae

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8
Q

A term describing molecules or regions of molecules that readily interact with water: a) svedberg b) amphipathic c) hydrophobic d) hydrophilic e) oxidants

A

d) hydrophilic

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9
Q

An example of a Basidiomycete: a) Micromonospora flavus b) Oscillatoria limnetica c) Mycobacterium smegmates d) Neurospora crassa e) Agaricus campestris

A

e) Agaricus campestris

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10
Q

Most fungi send out cellular filaments called: a) tetrasporal b) hyphae c) mycorrhizae d) asci e) septa

A

b) hyphae

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11
Q

An organelle that is composed of two parts or subunits made of protein and RNA whose major function in protein synthesis is the: a) lysosome b) chloroplast c) ribosome d) mitochondria e) golgi apparatus

A

c) ribosome

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12
Q

This group of fungi is known to rot wood: a) Zygomycetes b) Basidiomycetes c) Phycomycetes d) Diatoms

A

b) Basidiomycetes

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13
Q

A rigid layer that is composed of sugars and amino acids found in the cell wall of eubacteria is the: a) glycocalyx b) lipopolysaccharides c) teichoic acids d) peptidoglycan e) periplasmic space

A

d) peptidoglycan

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14
Q

The group of naturally ocurring prokaryotes that do not have a cell wall is called the: a) yeast b) archebacteria c) mycobacteria d) mycoplasma e) protozoans

A

d) mycoplasma

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15
Q

The 9+2 arrangement of the microtubules is seen in: a) chromosomes b) spindle fibers c) basal bodies d) flagellum

A

d) flagellum

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16
Q

Polyene antibiotics are used to kill: a) gram positive bacteria b) fungi c) viruses d) Staphylococcus aureus

A

b) fungi

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17
Q

Prior to this person’s work, food spoilage was a much more common occurence: a) Cohn b) Winogradsky c) Pasteur d) Koch

A

c) Pasteur

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18
Q

This group showed that one gene codes for one enzyme: a) Avery and coworkers b) Watson and Crick c) Tyndall and coworkers d) Chargaff and coworkers e) Beadle and Tatum

A

e) Beadle and Tatum

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19
Q

A microscope that converts slight differences in the refractive index and cell density into easily detected variations in light intensity: a) darkfield microscope b) phase contrast microscope c) fluorescent microscope d) transmission electron microscope e) brightfield microscope

A

b) phase contrast microscope

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20
Q

Recognition proteins are most important for: a) facilitated diffusion of molecules b) active transport of molecules c) maintaining membrane integrity d) maintaining membrane fluidity e) distinguishing foreign cells from self cells

A

e) distinguishing foreign cells from self cells

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21
Q

A large aggregate of amoeboid cells that move as a unit leaving a slime trail: a) coenobium b) diatom c) pseudoplasmodium d) mastigophora e) tetrasporal

A

c) pseudoplasmodium

22
Q

The acidic polysaccharides attached to cell wall of Gram positive bacteria are: a) lipopolysaccharides b) mucopolysaccharides c) glycocalyx d) teichoic acids e) peptidoglycan

A

d) teichoic acids

23
Q

These people proposed that the DNA molecule has a double helix chemical composition: a) Shlieden and Schwann b) Hutton and Lyell c) Watson and Crick d) Mendel and Morgan

A

c) Watson and Crick

24
Q

Protozoa are members of the: a) fungi b) plant kingdom c) animal kingdom d) monera e) protista

A

e) protista

25
Q

The process through which vegetative cells are formed from endospores is called: a) sporulation b) germination c) chemotaxis d) osmosis

A

b) germination

26
Q

An irregular network of branching and fusing membranes, tubules and sacs is called the: a) lysosomes b) mitochondria c) grana d) endoplasmic reticulum e) thylakoid

A

d) endoplasmic reticulum

27
Q

Process of nuclear division in which the number of chromosomes is halved: a) mitosis b) meiosis c) parthenogenesis d) binary fission e) transformation

A

b) meiosis

28
Q

An example of a spore forming bacteria is: a) mycobacterium smegmates b) Clostridium tetani c) Klebsiella pneumoniae d) Staphylococcus aureus

A

b) Clostridium tetani

29
Q

Anton von Leeuwenhoek is best known for his studies involving: a) sterilization of food b) the cell as the basic unit of life c) the germ theory of disease d) single celled organisms observed with the early microscope

A

d) single celled organisms observed with the early microscope

30
Q

Stacked sac-like membranes producing secretory vesicles: a) lysosomes b) mitochondria c) grana d) golgi apparatus e) thylakoid

A

d) golgi apparatus

31
Q

Bacteria have a region of the cytoplasm that contains the chromosome: a) nucleoid b) plasmid c) protoplast d) nucleus e) mesosome

A

a) nucleoid

32
Q

Hydrogenosomes are similar to mitochondria but hydrogenosomes lack: a) cristae b) stroma c) citric acid cycle enzymes d) electron transport chain enzymes needed in the flow of electrons e) a and c

A

e) a and c

33
Q

Group of fungi that lack a classical sexual cycle: a) Ascomycete b) Phycomycete c) Basidiomycete d) Deuteromycete

A

d) Deuteromycete

34
Q

Name the organism that causes amoebic dysentery: a) Shigella dysenteriae b) Bacillus subtilus c) Proteus mirabilis d) Entamoeba histolytica e) Salmonella typhi

A

d) Entamoeba histolytica

35
Q

Technique using heavy metals to stain specimens at an angle approximately 45 degrees from the horizontal that provides a 3 dimensional image similar to shadowing with light: a) shadow casting b) fixation c) freeze etching d) thin sectioning e) negative staining

A

a) shadow casting

36
Q

The main chemical component of bacterial flagellum is: a) flagellin b) tubulin c) dynein d) dipicolinic acid

A

a) flagellin

37
Q

Flagella covering the entire surface of a bacteria are called: a) polar b) lopotrichous c) peritrichous d) amphitrichous e) cillia

A

c) peritrichous

38
Q

Volvox spp. is an example of a: a) fungi b) yeast c) gram positive bacteria d) green algae e) diatom

A

d) green algae

39
Q

An example of a apicomplexan parasite: a) Dictyostelium discoidium b) Toxoplasma gondii c) Methanococcus jannaschii d) Escherichia coli e) Chlamydomonas sp.

A

b) Toxoplasma gondii

40
Q

Ribulose bisphosphate caboxylase (RubisCO) is an enzyme needed in the: a) Calvin cycle b) TCA cycle c) light dependent reaction d) Entner Douderoff pathway

A

a) Calvin cycle

41
Q

The area of microbiology that studies resistance to infection is called: a) immunology b) industrial microbiology c) genetic engineering d) microbial ecology e) molecular microbiolgy

A

a) immunology

42
Q

Name a bacteria that contains a glycocalyx: a) Staphylococcus aureus b) Bacillus subtillis c) Clostridium sporogenes d) Streptococcus pneumoniae

A

d) streptococcus pneumoniae

43
Q

Siliceous cell walls are characteristic of the: a) coenobium b) diatom) c) plasmodium d) mastigophora e) sorocarp

A

b) diatom

44
Q

Mitochondria and chloroplasts are different from other organelles in that the mitochondria and chloroplast: a) can make their own DNA and proteins b) have circular DNA c) have linear DNA d) a and b e) a and c

A

d) a and c

45
Q

Well organized material that is outside the cell wall and is not easily removed: a) peptidoglycan b) slime layer c) capsule d) fimbrae e) teichoic acids

A

c) capsule

46
Q

Pfiesteria piscicida is an example of a: a) fungi b) yeast c) red algae d) green algae e) dinoflagellate

A

e) dinoflagellate

47
Q

In which of the following will you find the common bread mold Rhizopus nigricans: a) Basidiomycete b) Ascomycete c) Deuteromycete d) Zygomycete

A

d) Zygomycete

48
Q

Give an example of a chemical that is found in a prokaryotic inclusion body: a) DNA b) dipicolinic acid c) teichoic acid d) glycogen e) ribosomes

A

d) glycogen

49
Q

An example of a parabasalid is: a) Entamoeba coli b) Neurospora crassa c) Mycobacterium smegmatis d) Geotrichum candidum e) trichomonas vaginalis

A

e) Trichomonas vaginalis

50
Q

The study of algae is called: a) virology b) mycology c) immunolgy d) phycology e) ornithology

A

d) phycology

Microbiology zamora (5 decks)

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