Bacterial Morphology

Question 1

What are the three shapes of bacteria

Answer 1

1. Cocci (round bacteria)
2. Bacilli (rod bacteria)
3. Curve and spiral shape

Question 2

What do you call cocci that seen in pairs

Answer 2

Diplococci

Question 3

What do you call a cocci seen in chains

Answer 3

Streptococci

Question 4

What do you call cocci scene in clusters

Answer 4

Staphylococci

Question 5

What do you call a cocci seen in packets of four

Answer 5

Tetrads

Question 6

What do you call coccus sizing in packets of eight

Answer 6

Octads

Question 7

What is the average coccus in diameter

Answer 7

1 um

Question 8

Refer to as rods a short or long thick or thin and pointed or with curve or blunt ends

Answer 8

Bacilli

Question 9

What do you call a bacilli seen in pairs

Answer 9

Diplobacilli

Question 10

What do you call a bacillii seen in chains

Answer 10

Streptobacilli

Question 11

What is the average size of bacillus

Answer 11

1×3 um

Question 12

Serves to protect bacteria from harsh environmental condition

Answer 12

Envelope structures

Question 13

What are the two envelope structures

Answer 13

Glycocalyx
cell wall

Question 14

Made up of polysaccharide or polypeptide which is slimy gelatinous material secreted outside the cell wall

Answer 14

Glycocalyx

Question 15

What are the two types of glycocalyx

Answer 15

1. Slime layer
2. Capsule

Question 16

A type of glycocalyx which is not highly organized and not firmly attached to the cell wall. It enables certain bacteria to glide or slide along solid surfaces.

Answer 16

Slime layer

Question 17

Produce a slime layer

Answer 17

Pseudomonas

Question 18

A type of glycocalyx which is highly organized and has antiphagocytic function

Answer 18

Capsules

Question 19

Rigid exteriors that defines the shape of bacterial cells

Answer 19

Cell wall or murein succulus

Question 20

Is the bacterial cell wall a chemically complex?

Answer 20

Yes

Question 21

What is the main constituent of bacterial cell wall

Answer 21

Peptidoglycan

Question 22

Where can you found peptidoglycan

Answer 22

Only in bacteria

Question 23

Gram positive have ____ layer of peptidoglycan

Answer 23

Thick

Question 24

Gram negative have_____ layer of peptidoglycan

Answer 24

Thin

Question 25

Mycoplasma spp. do not have a cell wall, they are called?

Answer 25

Pleomorphic

Question 26

Major surface antigens that illicit antibody response that also provides stensile strength

Answer 26

Teichoic acid

Question 27

What are the gram negative cell wall

Answer 27

1. Outer membrane 2. Lipoprotein 3. Periplasmic space

Question 28

A bilayered membrane composed of LPS, a special protein channels

Answer 28

Outer membrane

Question 29

A complex glycolipid for endotoxin

Answer 29

Lipid A

Question 30

Anchors the outer membrane to the peptidoglycan

Answer 30

Lipoprotein

Question 31

Fluid filled between outer membrane and the inner membrane

Answer 31

Periplasmic space

Question 32

Large amounts of waxes is known as

Answer 32

Mycolic acid

Question 33

In acid fast cell wall, what is the reason for being unstain?

Answer 33

Outermost layer has lipids

Question 34

Is a thread like protein appendages for motility

Answer 34

Flagella

Question 35

The number and arrangement of flagella is for _____ and _____ purposes

Answer 35

Classification and identification

Question 36

Is a hair like structures most on gram negative bacteria

Answer 36

Pili

Question 37

Pili is composed of polymerized protein called

Answer 37

Pilin

Question 38

Pili have a rigid structure and more associated on _____

Answer 38

Attachment

Question 39

Enables transfer of genetic material from one bacterial cell to another

Answer 39

Sex pilus

Question 40

Found in spyrochaetes causes syphilis. A bundle of febriles that propels the bacteria

Answer 40

Axial filaments or endoflagella

Question 41

Also called as cell membrane plasma membrane or cell sac

Answer 41

Cytoplasmic membrane

Question 42

Where does the metabolic reactions take place

Answer 42

Cell membrane

Question 43

Does bacteria have true nucleus?

Answer 43

No

Question 44

Genetic structure is packed in the ______

Answer 44

Nucleoid

Question 45

Imagination of the cell wall which is used in cell division and secrete substances

Answer 45

Mesosome

Question 46

It is used as storage for food and energy

Answer 46

Granules

Question 47

_____ and _____ can form thick walled spores as a means of survival

Answer 47

Bacillus and clostridium

Question 48

The process of spore formation is called

Answer 48

Sporulation

Question 49

Survive for many years and are resistant to heat, cold, drying and most chemicals.

Answer 49

Endospores

Question 50

One sport is produced in a bacterial cell, which generates into one _______.

Answer 50

Vegetative bacterium

Question 51

Endospores can be visualized using a

Answer 51

Spore stain

Question 52

Made up of the picolinic acid and calcium depicolinate that resist heat drying and radiation

Answer 52

Endospores

Question 53

If the spore once again live becomes of vegetative cell the process is called

Answer 53

Germination