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Microbiology > Exam 1 Research > Flashcards

Exam 1 Research Flashcards

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Biology 101 flashcards
0
Q

Sarcodines are Protozoa, which move through the use of?

A

pseudopodia

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1
Q

Which of the following is a correct description of prokaryotes?

A

a- Unicellular
b- Divide by binary fission
c- Many use flagella to move
d- Some have a cell wall made of peptidoglycan

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2
Q

In general most prokaryotes are smaller than eukaryotes? True or False

A

True

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3
Q

Which is not correct description archaea?

A

Most are multicellular

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4
Q

Which of the following are eukaryotes?

A

Algae and Protozoa

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5
Q

Antoni Van Leewenhoek was the first person in history to?

A

View Protozoa and bacteria

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6
Q

All of the following are characteristics of fungi except:

A

They are made of prokaryotic cells

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7
Q

All of the following are associated with algae except:

A

They are important in the degradation of dead plants/animals.

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8
Q

Gram(-) cells have periplasm consisting of all the following except for:

A

Flagella

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9
Q

All bacteria have a cell wall: True or False

A

False

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10
Q

Lysozyme is an antibiotic compound that destroys the bacterial cell wall by:

A

Degrading the bond between NAM & NAG

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11
Q

Which of the following is true concerning the glycocalyx of bacteria?

A

It serves as a function of adherence and protection

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12
Q

Small circular pieces of DNA that exist in prokaryotes providing benefits such as protection against antibiotic are called:

A

Plasmids

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13
Q

Which of the following will use the H2S as energy source?

A

Chemolithoautotroph

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14
Q

The process of using the brief heat treatment to reduce the number of disease causing organisms is referred to as

A

Pasteurization

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15
Q

All of the following are aspects of Pasteur’s experiments to disprove spontaneous generation except:

A

The flasks he used were sealed with corks

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16
Q

Which of the following is an incorrect pairing

A

Protozoa: multicellular

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17
Q

Which of the following term is Not a component of bacterial flagella?

A

Tubulin

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18
Q

Ribosome?

A

Site of protein synthesis

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19
Q

Gas vesicle

A

Provides buoyancy for cell

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20
Q

Flagella

A

Utilized for cell movement

21
Q

Peroxisome

A

Where hydrogen peroxide is broken down

22
Q

Lysosomes

A

Site of protein degradation

23
Q

Smooth ER

A

Where sex hormones are made

24
Q

Rough ER

A

Secreted proteins begin to be folded or modified here

25
Q

Mitochondria

A

Where the most ATP is made in eukaryotes

26
Q

Chloroplast

A

Site of photosynthesis in eukaryotes

27
Q

Nucleolus

A

Site of rRNA synthesis

28
Q

Endospores

A

Dormant cells produced by sporulation

29
Q

Which would likely grow well at 25*C and be involve in spoilage of food products?

A

Psychrotrophs

30
Q

Which of the bacterial cell structure plays role in creation of biofilms

A

Fimbriae and Glycocalyx

31
Q

Small lipid soluble molecule would be expected to cross cytoplasmic membrane by which process?

A

Diffusion

32
Q

Which would likely grow at 37*C and cause human disease

A

Mesophiles

33
Q

Media designed to promote growth of certain bacteria while at the shame time inhibiting growth of other forms?

A

Selective

34
Q

Unlike desinfectant, antiseptic

A

Is nontoxic enough to be used on human tissue

35
Q

The accumulation of glucose inside bacteria cell via phosphorylation of the molecule is an example of:

A

Group translocation

36
Q

The D value is define as the time it takes to kill

A

90% of bacteria population

37
Q

Which enzymes are utilized to fight the destruction effects of O2?

A

Catalase/ superoxide dismutase

38
Q

Mercurochrome

A

Binds to S groups thus preventing proteins from folding

39
Q

Ethylene oxide

A

Gaseous agent used to sterilize pillows

40
Q

Halogens

A

Chlorine or iodine

41
Q

Quads

A

+ charged detergent used to clean food preparation surfaces

42
Q

At temperatures higher that the maximum growth temperature for an organism:

A

Proteins are permanently denatured, membranes become too fluid for proper function, and hydrogen bonds within molecules are broken.

43
Q

All prokaryotes have circular genes, while all eukaryotes have lineR genomes: True or False

A

False

44
Q

During which growth phase are bacteria more susceptible to antimicrobial drugs?

A

Log phase

45
Q

The term Sterilization applies to the removal of all the following except:

A

Prions

46
Q

Which of the following is not bacteriostatic?

A

Autoclaving

47
Q

Which of the following would be used to sterilize a mattress

A

Ethylene oxide

48
Q

Some cells use pseudopodia primarily during the process of?

A

Endocytosis

49
Q

The presence of lipopolysaccharides and poring proteins are indicative of which kind of bacteria

A

Gram (-)

Microbiology (5 decks)

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