Bacteria

Question 1

Are bacteria simple or complex?

Answer 1

Simple

Question 2

Do bacteria have a nucleus?

Answer 2

No

Question 3

How big are bacteria?

Answer 3

Small (1-5um)

Question 4

Are bacteria free-living?

Answer 4

Mostly

Question 5

Do bacteria have DNA & RNA?

Answer 5

Yes

Question 6

How do bacteria reproduce so rapidly?

Answer 6

Binary fission eg 1 > 2 > 4 > 8

Question 7

What external structure enhances virulence by allowing attachment?

Answer 7

Fimbrae

Question 8

What external structure enhances virulence by allowing movement?

Answer 8

Flagella

Question 9

What external structure enhances virulence by providing an antiphagocytic shield?

Answer 9

Capsule

Question 10

What external structure enhances virulence by allowing genetic transfer?

Answer 10

Pili

Question 11

What part of bacteria enters the environment and enhances virulence by allowing resistance to develop? Give an example of a bacteria that does this.

Answer 11

Endospores - tetanus

Question 12

What are the 3 main ways bacteria are classified?

Answer 12

1. Cell wall composition
2. Shape (morphology)
3. Sequence the genome (pathogenicity)

Question 13

What is the cell wall composition of Gram Positive bacteria? What color Gram stain?

Answer 13

• Thick layer of peptidoglycan
• Blue

Question 14

What is the cell wall composition of Gram Negative bacteria? What color Gram stain?

Answer 14

• Very thin peptidoglycan
• Thick outer layer of lipopolysaccharide (LPS)
• Red

Question 15

Why are Gram Negative bacteria harder to treat?

Answer 15

The lipopolysaccharide layer makes it hard for antibiotics to reach the peptidoglycan target.

Question 16

Cocci means round

Answer 16

True

Question 17

What is the name of rod shaped bacteria?

Answer 17

Bacilli

Question 18

What are terms to describe spiral shaped bacteria?

Answer 18

• Spirilla
• Spirochetes

Question 19

Diseases: Red Rods Make Ugly sticks

Answer 19

• Gram Negative
• Bacilli
👇🏼
• Meliodosis
• UTI’s

Question 20

Diseases: Blue Rods Get Good Tilapia

Answer 20

• Gram Positive
• Bacilli
👇🏼
• Gas gangrene
• Tuberculosis

Question 21

What shape of bacteria cause Syphilis?

Answer 21

Spiral - spirochetes

Question 22

Diseases: Blue Balls = Good Shit

Answer 22

• Gram Positive
• Cocci
👇🏼
• Golden Staff

Question 23

Blue Chains Stop Tracey Eating Sugar & Fat

Answer 23

• Gram Positive
• Chains
👇🏼
• Strep throat
• Erysipelas (shallow skin infection)
• Scarlet fever

Question 24

How are Rickettsia & Chlamydia different to other bacteria?

Answer 24

They are not free-living - require a host cell to reproduce

Question 25

What is the most common cause of preventable blindness?

Answer 25

Trachoma

Question 26

What bacteria causes Trachoma?

Answer 26

Chlamydia trachomatis

Question 27

Why don't mycobacteria stain well in a Gram stain?

Answer 27

They have a waxy cell wall

Question 28

What does the M stand for in M. tuberculosis?

Answer 28

Mycobacteria

Question 29

Which is the most common type of tuberculosis?

Answer 29

Pulmonary

Question 30

Which is the most common type of tuberculosis?

Answer 30

Pulmonary

Question 31

Can tuberculosis affect any organ?

Answer 31

Yes

Question 32

Can tuberculosis affect any organ?

Answer 32

Yes

Question 33

Which type of TB affects bone marrow?

Answer 33

Milary TB

Question 34

Which type of TB affects bone marrow?

Answer 34

Milary TB

Question 35

Which type of TB is a big problem in PNG and Nth QLD?

Answer 35

MDR-TB

Question 36

Which type of TB is a big problem in PNG and Nth QLD?

Answer 36

MDR-TB

Question 37

The first word in a bacteria name is the

Answer 37

Genus

Question 38

The second word in a bacteria name is the

Answer 38

Species

Question 39

Are bacteria prokaryotes or eukaryotes?

Answer 39

Prokaryotes