Bacterial Structure

Question 1

Two structures not found in prokaryotic cells

Answer 1

Golgi body

Endoplasmic reticulum

Question 2

T/F

Prokaryotes have a nucleus

Answer 2

False

(they have a nucleoid region)

Question 3

Eukaryotic cells _ _ times bigger than prokaryotic cells

Answer 3

Ten!

Question 4

T/F

Protozoa is an example of a prokaryote

Answer 4

False

Eukaryote dummy!

Question 5

T/F

The DNA of a prokaryotic cells is surrounded by an envelope

Answer 5

False

Question 6

Most bacteria range from _ _ um in diameter and from _ _ um in length

Answer 6

0.2 to 2 um in diameter

2 to 8 um in length

Question 7

Name when two cocci are attached

Name for a chain of cocci

Name for grapelike clusters of cocci

Answer 7

Diplococci

Streptococci

Staphylococci

Question 8

T/F

Most bacilli appear in chains

Answer 8

False

Most bacilli appear as single rods

Question 9

Sizes

Coccus

Bacillus

Spirochaete

Answer 9

Coccus - 1 um

Bacillus - 5 um

Spirochaete - 10 um

Question 10

This structure is external to the cell wall of prokaryotes and serves protective, adhesive and receptor functions

Answer 10

Glycocaylx

Question 11

This structure is external to the cell wall of prokaryotes and assist in motility

Answer 11

Flagella

Question 12

This structure is external to the cell wall of prokaryotes and help with attachment to the host cell

Answer 12

Fimbriae (pili)

Question 13

T/F

Fimbriae/pili assist with motility

Answer 13

False

Question 14

Prokaryote with a single flagella

Prokaryote with one flagella on each end

Prokaryote with multiple flagella on one end

Prokaryote with flagella everywhere

Answer 14

Monotrichous

Amphitrichous

Lophotrichous

Peritrichous

Question 15

Gram _ _ have a thin peptidoglycan layer

Gram _ _ have an outer membrane

Gram _ _ do NOT have endotoxins

Answer 15

Gram negative

Gram negative

Gram positive

Question 16

Put these in the correct order for Gram staining

Safranin - Iodine - Alcohol - Crystal Violet

Answer 16

Crystal Violet > Iodine > Alcohol > Safranin

Question 17

Flagella are composed of _ _

Flagella are called _ _ antigens

Answer 17

glycoproteins

H antigens

Question 18

These feature of bacteria can disrupt phagocytosis, prevent desiccation, resist lysis by complement, and inhibit lysis within phagolysosomes

Answer 18

Capsule

Question 19

Resting stage of bacteria that enables the organism to endure adverse conditions

Answer 19

Spore

Question 20

3 spores that cause diseases and withstand extremely harsh conditions

Answer 20

Anthrax

Botulism

Tetanus

Question 21

T/F

All bacteria can form spores

Answer 21

False

Question 22

Sterilization can kill all of the following except:

Bacteria

Spores

Prions

Viruses

Answer 22

Prions

Question 23

Dry heat sterilization

Time -

Temperature -

Answer 23

320F for 2 hours

340F for 1 hour

Question 24

Electromagnetic radiation of high frequency used for sterlization of disposable plastic lab and surgical equipment

Answer 24

Gamma radiation

(unsuitable for glass and metal)

Question 25

Electromagnetic radiation with a wavelength shorter than visible light used in biosafety cabinets

Answer 25

Ultraviolet light

Question 26

Used for filtering out bacteria from heat sensitive fluids such as serum, tissue culture media

Answer 26

Membrane filtration