Prokaryotes Flashcards

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34 Terms

1

bacteria

Most _________ function as independent single-celled, unicellular organisms

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2

spirilla

_______ is occasionally found in short chains

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3

spirochetes

Rarely remain attached after cell division

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4

motility

The primary function of flagellum is

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5

monotrichous

_________ is single flagellum

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6

lophotrichous

_______ is small bunches or tufts of flagella emerging from the same site

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7

amphitrichous

_________ has flagella at both poles of the cell

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8

chemotaxis

_________ is movement of bacteria in response to chemical signals

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9

spirochetes

______ is corkscrew-shaped bacteria

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10

Fimbria/fimbriae

Small, bristle-like fibers sprouting off the surface of many bacterial cells is called

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11

S

Single layers of thousands of copies of a single protein linked together is a ____ layer.

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12

slime

_________ layer protects against loss of water and nutrients

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13

cell wall

What helps determine the shape and provides structural support of a bacterium?

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14

Lysis

Rupture of a cell means

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15

mycoplasmas

What bacteria naturally lacks a cell wall?

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16

porin proteins

Special membrane channels that only allow certain chemicals to penetrate are

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17

gram-negative

An outer membrane of ________ bacteria contributes an extra barrier making it more difficult to inhibit or kill than gram-positive bacteria.

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18

cytoplasm

What serves as a pool for building blocks for cell synthesis or sources of energy?

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19

bacterial chromosome

The hereditary material of most bacteria exists in the

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20

plasmids

Nonessential pieces of DNA are called ______.

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21

ribosomes

Site of protein synthesis are the

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22

sporulation

__________ is induced by environmental conditions

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23

bacillus

Bacterial Endospores are produced by _________ , Clostridia, and Sporosarcina

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24

Bacillus anthracis

Agent of anthrax is

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25

Clostridium botulinum

Cause of botulism is

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26

extremophiles

A microorganism of the archaean, that lives in conditions of extreme temperature, acidity, alkalinity, or chemical concentration is an

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27

Systematic

A comprehensive view of bacterial and archaeal relatedness is Bergey’s Manual of ________Bacteriology

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28

Determinative

Bergey’s Manual of _______ Bacteriology is based entirely on phenotypic characteristics.

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29

Gracilicutes

________________ are gram-negative with thin cell walls

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30

Firmicutes

_________ are gram-positive with thick, strong cell walls

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31

Tenericutes

________ lack a cell wall and are soft

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32

Mendosicutes

___________ are primitive cells with unusual cell walls and nutritional habits

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33

Bacterial species

A collection of bacterial cells which share an overall similar pattern of traits is

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34

strain

Bacteria of the same species that have differing characteristics are Subspecies, _______ , or type.

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