Micro 3 (Test 1)

Question 1

Most antibiotics work by destroying the ____ of bacteria

Answer 1

cell wall

Question 2

The _____ controls what enters and exits a cell

Answer 2

cell membrane

Question 3

_____ is the process of expelling wastes and other materials to the outside of a cell.

Answer 3

exocytotsis

Question 4

_____ is the term referring to the process of sexual reproduction in bacteria.

Answer 4

conjugation

Question 5

_____ are hollow structures that aid in the process of bacterial reproduction

Answer 5

pilli

Question 6

_____ are solid, hair-like appendages found on most bacteria

Answer 6

fimbria

Question 7

_____, _____, and _____ are made up of proteins that act as antigenic sites

Answer 7

fimbria, pilli, flagella

Question 8

_____ are very long strands of proteins that are used for motility

Answer 8

flagella

Question 9

_____ are exposed proteins on the surface of a bacterium that are easily recognized as foreign

Answer 9

antigenic sites

Question 10

_____ is the protein that makes up pilli and fimbria

Answer 10

tubulin

Question 11

_____ is a single flagella located at both poles

Answer 11

bitrichous

Question 12

_____ has no flagella

Answer 12

atrichous

Question 13

_____ completely surrounded by flagella

Answer 13

peritrichous

Question 14

_____ a single flagella located at one pole

Answer 14

monotrichous

Question 15

_____ tufted flagella at one pole

Answer 15

lopotrichous

Question 16

_____ tufted flagella at both poles

Answer 16

amphitrichous

Question 17

Most cocci are gram (-) are _____ (do not have any flagella)

Answer 17

atrichous

Question 18

Flagella are made up of a protein called _____

Answer 18

flagellin

Question 19

The _____ is very thin layer of waste products that adhere to the surface of the cell wall

Answer 19

slime layer

Question 20

The _____ is a visible, thick envelope surrounding some highly pathogenic species of bacteria.

Answer 20

capsule

Question 21

True or False: a slime layer can mask antigenic sites

Answer 21

TRUE

Question 22

Only gram (+) _____ have the ability to produce spores

Answer 22

bacilli

Question 23

_____ act as “survival chambers” that allow bacteria to regain its properties after harsh conditions have passed.

Answer 23

endospores

Question 24

True or False: Endospores play a major reproductive role in bacteria

Answer 24

FALSE

they play a major role is survival

Question 25

The endospores are highly resistant to…

Answer 25

1. heat 2. detergents (disinfectants) 3. drying

Question 26

The _____ part of the cell is easily destroyed under harsh conditions

Answer 26

vegetative strate

Question 27

_____ is a binder that prevents bacteria from washing away.

Answer 27

laminase

Question 28

_____ is the process by which bacteria take internal items and releases them externally.

Answer 28

exocytosis

Question 29

The _____ is the space between the cell wall and the cell membrane.

Answer 29

periplasmic space