Unit 5: Bacteria Flashcards Preview

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Flashcards in Unit 5: Bacteria Deck (24):
1

What are archaebacteria called that live in environments with no oxygen?

methanogens

2

What are disease causing bacteria referred as?

parasitic or pathogenic

3

Where is the DNA in a bacterium found?

within the cytoplasm

4

Which type of genetic recombination is this?

conjugation

5

What shape bacteria are these?

cocci

6

What are archaebacteria called that live in extremely salty environments?

extreme halophiles

7

What connects two bacteria together during conjugation?

sex pilus

8

Eubacterians have unique cell walls in that they contain a layer of....

peptidoglycan

9

Prior to binary fission what must occur within the bacterium?

DNA replication

10

What bacterial appendage allows it to stick to door handles?

pili

11

During transformation, what is the DNA fragment called?

Plasmid

12

How many DNA molecules do bacteria have?

1

circular

13

What are the two prokaryotic kingdoms?

archaebacteria and eubacteria

14

What is the niche of eubacteria within our biosphere?

Decompose organic matter and return the nutrients to the environment. 

15

Where does the foreign DNA come from during the following type of genetic recombination

bacteriophage 

(this is transduction)

16

How are the cell membranes different between the two bacterial kingdoms?

eubacteria- may have two cell membranes

arachaebacteria have special lipids that withstand the harsh conditions of their environment. 

17

What is the only organelle that bacteria contain?

Ribosomes

rRNA

18

What is the asexual reproductive process called that bacteria go through to make identical daughter cells?

Binary Fission

19

During transformation, what transport process provides the means for how the DNA will enter the bacterium?

phagocytosis

20

When bacteria go through repetitive binary fission and grow in clumps, those clumps are known as

colonies

21

What is the niche of archaebacteria?

play a role in the creation of natural gas either in the Earth's crust or within the digestive tracts of animals.  

22

What shape bacteria are these?

bacilli

23

What are archaebacteria called that live in environments that are extremely hot and acidic?

thermoacidophiles

24

What can be taken to kill or treat a bacterial infection?

antibiotics