Bacteriology overview and basic concepts Flashcards Preview

RUSVM PID Exam#1 (Orange semester Fall 2016) > Bacteriology overview and basic concepts > Flashcards

Flashcards in Bacteriology overview and basic concepts Deck (71)
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1

Gram positive: Aerobic cocci (3)

Staphylococcus
Streptococcus
Enterococcus

2

Gram positive: Aerobic rods (6)

Actinomycetes
Bacillus
Corynebacterium/Nocardia
Listeria
Mycobacterium
Rhodococcus

3

Gram positive: Anaerobic rods (1)

Clostridium

4

Gram negative: Enterobacteriaceae (rod) (5)

Esherichia coli/Shigella
Salmonella
Klebsiella/Enterobacter
Proteus
Yersinia

5

Gram negative: Non-fermentative rods (7)

Bordetella
Pseudomonas/Burkholderia
Aeromonas/Vibria
Pasteurella/Mnnheimia
Haemophilus/Hostophilus
Brucella
Francisella

6

Gram negative: Anaerobic rods (2)

Clostridium (pilidorme)
Fusobacterium

7

Curved spiral bacteria (5)

Campylobacter/Helicobacter
Brachyspira
Lawsonia
Leptospira
Treponema/Borrelia

8

Obligate intracellular bacteria (4)

Anaplasma/Ehrlichia
Chlamydia/Chlamydophila
Coxiella
Rickettsia

9

Bacteria without a cell wall (1)?

Mycoplasma

10

4 things in common for prokaryotes and eukaryotes?

1. Cell membrane
2. Cytoplasm
3. DNA
4. Ribosomes (although different ribosome types)

11

No nucleus no membrane enclosed organelles. They tend to be smaller and more simplistic

Prokaryotic cells

12

have a nucleus and membrane enclosed organelle. They tend to be larger and more complex

Eukaryotic cells

13

What holds bacteria DNA if bacteria do not contain a true nucleus?

Nucleoid

14

A jelly like aqueous solution that contains macromolecules, small molecules, and various inorganic ions?

Cytoplasm

15

What are proteins (enzymes) such as mRNA, and tRNA considered?

Macromolecules

16

precursors to macromolecules, metabolites or vitamins, energy sources

small molecules

17

required for enzymatic activity (co factors)

Inorganic ions

18

What does the cytoplasm contain?

Nucleoid and ribosomes

19

Helps to facilitate chemical reactions and it helps to dissolve solutes (carbohydrates and proteins)

Cytoplasm

20

Nucleus like structure that is made up of 60% DNA, contains proteins and RNA

Nucleoid

21

a complete set of DNA in bacteria which includes all essential genes

Bacterial genome

22

In the nucleoid the DNA is compacted by?

Proteins

23

DNA loop formation in the nucleoid is caused by?

Nucleoid-associated proteins bound to DNA

24

DNA supercoiling is mediated by these 2 enzymes?

DNA gyrase and topoisomerase I

25

Along with proteins involved in DNA compaction, ________ _________ regulate expression of the bacterial genome?

Transcription factors

26

2 types of RNA in the nucleoid?

-mRNA (messenger RNA) encodes for proteins

-ncRNA (non coding RNA) is involved in DNA organization and expression of the bacterial genome

27

one pair of nucleotide bases that connect the complementary strands of DNA

1 base pair

28

A circular molecule of DNA that replicates separately from the chromosome (not part of the nucleoid)

Plasmid

29

Plasmid genes are not ______ under normal conditions?

essential

30

Size ranges of plasmids?

1 kilobase pairs (Kbp) to several megabase pairs (Mbp)