WorksheetsBacteriology(4)
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Bacterial blight is caused by which bacteria?
a)
Xanthomomonas
b)
Vibrio Cholerae
c)
Yersina pestis
d)
Excherichia coli
2.
Leprosy is caused by which bacteria?
a)
Mycobacterium leprae
b)
Mycobacterium bovis
c)
Mycobacterium tuberculosis
d)
Corona Leprae
3.
Which of the following cough related diseases is caused by bacteria?
a)
Whooping cough
b)
Chronic bronchitis
c)
COVID-19
d)
Asthma
4.
bacteria does not play a role in which of the following cycles?
a)
Nitrogen cycle
b)
Carbon cycle
c)
Water cycle
d)
Urea cycle
5.
which structure aids in the atachment of bacteria to cells
a)
flagella
b)
pilli
c)
peptidoglycan
d)
plasmids
6.
bacteria ribosomes are rsponsible for ……………….
a)
photosynthesis
b)
protein synthesis
c)
urea synthesis
d)
waste synthesis
7.
what differentiates eukaryotes from prokaryotes?
a)
eukaryotes have chromosomes
b)
eukaryotes have ribosomes
c)
eukaryotes have peptidoglycan
d)
eukaryotes have flagella
8.
which of the following can be found in ALL bacteria cells?
a)
chromosomes
b)
80s ribosomes
c)
70s riboxomes
d)
mesosomes
9.
bacteria that have FLEXIBLE SPIRAL FORMS are called
a)
spirochaetes
b)
spirilla
c)
vibri
d)
rickettsiae
10.
Optimum temperature for bacteria growth is ……………………………..
a)
the temperature that favour growth of extremophiles
b)
the temperature at which bacteria growth rate is the highest
c)
temperature at which bacteria population is the largest
d)
temperature at which bacteria growth becomes negative
11.
when culturing acidophilic bacteria, the culture medium must …………………………
a)
include a buffer solution that maintains optimal accidic pH
b)
include buffer solution that maintains high acidic pH
c)
include high concentration of acid
d)
includes acid with pH of 6.5
12.
using optimum pH, bacteria can be classified as
a)
acidophilic, neutrophilic, and alkilophilic
b)
acidiphilice, neutriphilic and alkilophilic
c)
acidophilic, neutrophilic and alkaliphilic
d)
acidaphilic, nuetriphilic and alkoliphilic
13.
different bacteria were introduced into a culture medium of pH 11. which bacteria will grow at the fastest rate?
a)
alkaliphilic bacteria
b)
acidophilic bacteria
c)
neutrophilic bacteria
d)
mesophilic bacteria
14.
with reference to the graph, what is the optimum temperature for the growth of hyperthermophilic bacteria?
a)
106oC
b)
115oC
c)
90oC
d)
60oC
15.
with reference to the graph, thermophiles will NEVER grow at a temperature of ……………….
a)
45oC
b)
55oC
c)
75oC
d)
65oC
16.
with reference to the graph, which category of bacteria have the lowest range of temperature tolerance?
a)
mesophiles
b)
thermophiles
c)
hyperthermophiles
d)
psychrophiles
17.
with reference to the graph, which category of bacteria have the highes growth rate at their optimum temperature?
a)
thermophiles
b)
mesophiles
c)
psychrophiles
d)
Hyperthermophile
18.
with reference to the graph, which bacteria is most likely to grow in boiling water?
a)
thermophiles
b)
mesophiles
c)
psychrophiles
d)
Hyperthermophile
19.
with reference to the graph, which category of bacteria is most likely to grow in ICE?
a)
thermophiles
b)
mesophiles
c)
psychrophiles
d)
Hyperthermophile
20.
Extreme halophiles can grow at salt concentrations that are ………………….
a)
below 3%
b)
between 5% - 10%
c)
above 10%
d)
between 3% - 5%
100 %
