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Flashcards in Exam 1 Research Deck (50):
0

Which of the following is a correct description of prokaryotes?

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

1

Sarcodines are Protozoa, which move through the use of?

pseudopodia

2

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

True

3

Which is not correct description archaea?

Most are multicellular

4

Which of the following are eukaryotes?

Algae and Protozoa

5

Antoni Van Leewenhoek was the first person in history to?

View Protozoa and bacteria

6

All of the following are characteristics of fungi except:

They are made of prokaryotic cells

7

All of the following are associated with algae except:

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

8

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

Flagella

9

All bacteria have a cell wall: True or False

False

10

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

Degrading the bond between NAM & NAG

11

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

It serves as a function of adherence and protection

12

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

Plasmids

13

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

Chemolithoautotroph

14

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

Pasteurization

15

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

The flasks he used were sealed with corks

16

Which of the following is an incorrect pairing

Protozoa: multicellular

17

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

Tubulin

18

Ribosome?

Site of protein synthesis

19

Gas vesicle

Provides buoyancy for cell

20

Flagella

Utilized for cell movement

21

Peroxisome

Where hydrogen peroxide is broken down

22

Lysosomes

Site of protein degradation

23

Smooth ER

Where sex hormones are made

24

Rough ER

Secreted proteins begin to be folded or modified here

25

Mitochondria

Where the most ATP is made in eukaryotes

26

Chloroplast

Site of photosynthesis in eukaryotes

27

Nucleolus

Site of rRNA synthesis

28

Endospores

Dormant cells produced by sporulation

29

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

Psychrotrophs

30

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

Fimbriae and Glycocalyx

31

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

Diffusion

32

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

Mesophiles

33

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

Selective

34

Unlike desinfectant, antiseptic

Is nontoxic enough to be used on human tissue

35

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

Group translocation

36

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

90% of bacteria population

37

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

Catalase/ superoxide dismutase

38

Mercurochrome

Binds to S groups thus preventing proteins from folding

39

Ethylene oxide

Gaseous agent used to sterilize pillows

40

Halogens

Chlorine or iodine

41

Quads

+ charged detergent used to clean food preparation surfaces

42

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

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

43

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

False

44

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

Log phase

45

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

Prions

46

Which of the following is not bacteriostatic?

Autoclaving

47

Which of the following would be used to sterilize a mattress

Ethylene oxide

48

Some cells use pseudopodia primarily during the process of?

Endocytosis

49

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

Gram (-)