Kulang san sa igbaw

Question 1

: bacteria which uses organic compound as carbon source and lack
the ability to fix carbon dioxide

Answer 1

Heterotrophs

Question 2

: bacteria that can grow at below 0°C to 20°C but the optimum
temperature of growth is 15°C or below. It contains polyunsaturated fatty acids in
their cell membrane which allows it to not freeze even at lower temperature
hence it is a common contaminant in refrigerators

Answer 2

Psychrophiles

Question 3

bacteria that can grow even
between 0°C to 30°C but optimum temperature for growth is 20-30°C.

Answer 3

Psychrotrophs (facultative psychrophiles)

Question 4

: bacteria that can grow best between 25-40°C and optimum
temperature for growth is 37°C.

Answer 4

Mesophiles

Question 5

bacteria that best grow above 45°C, contains saturated fattyacids
in their cell membrane so their cell membrane does not become too fluid even at
higher temperature, can survive pasteurization temperature.

Answer 5

Thermophiles

Question 6

Type of thermopiles

Answer 6

a. facultative thermophiles
b. obligate thermophiles

Question 7

: capable of growing in mesophilic range

Answer 7

facultative thermophiles

Question 8

: true thermophiles or Stenothermophiles

Answer 8

obligate thermophiles

Question 9

bacteria that have optimum temperature of growth above
80°C.

Answer 9

Hypethermophiles

Question 10

: bacteria that grows best at acidic pH

Answer 10

Acidophiles

Question 11

: bacteria that grows best at alkaline pH

Answer 11

Alkaliphiles

Question 12

: bacteria that grows best at neutral pH (6.5-7.5)

Answer 12

Neutrophiles

Question 13

: bacteria that require high concentration of sodium chloride (NaCl) for
growth

Answer 13

Halophiles

Question 14

: bacteria that does not require NaCl but can tolerate low
concentration of NaCl in growth media

Answer 14

Halotolerant

Question 15

: bacteria that requires and cannot grow in the absence of
oxygen

Answer 15

Obligate aerobes

Question 16

: bacteria that do not require oxygen but can use it if
available

Answer 16

Facultative anaerobes

Question 17

: bacteria that do not require but can tolerate the
presence of oxygen for growth

Answer 17

Aerotolerant anaerobes

Question 18

: bacteria that do not require but can tolerate low concentration
of oxygen for growth

Answer 18

Microaerophiles

Question 19

: bacteria that can grow only in absence of oxygen

Answer 19

Obligate anaerobes

Question 20

: bacteria that require carbon dioxide for growth

Answer 20

Capnophiles

Question 21

: cell wall of these bacteria is composed of peptidoglycan
layer only. The cell wall retains the crystal fire lit or gram stain which appear
violate in Gram staining

Answer 21

Gram positive bacteria

Question 22

: cell wall of these bacteria is composed of
Peptidoglycan and outer membrane. The cell wall does not retain the gram stain,
but they take up the red color of the counter stain during Gram staining.

Answer 22

Gram negative bacteria

Question 23

: bacteria with single flagellum in one end of cell.

Answer 23

Monotrichous

Question 24

: bacteria having bundle of flagella in one end of cell

Answer 24

Lophotrichous

Question 25

: bacteria having single or cluster of flagella at both end of cell.

Answer 25

Amphitrichous

Question 26

: bacteria having flagella evenly distributed around the cell surface.

Answer 26

Peritrichous

Question 27

: bacteria without flagella

Answer 27

Atrichous

Question 28

: spore produced within the bacterial cell

Answer 28

endospore forming bacteria

Question 29

: spore produced outside the cel

Answer 29

exospore forming bacteria

Question 30

: those bacteria which do not produce spore

Answer 30

Non-spore forming bacteria