Microorganisms MCQ's 2014 Answered

1

Pasteur is attributed with which one of the following discoveries?

1

The length of a typical E. coli cell is approximately?

1

With respect to differences between members of the archaeal and bacterial
domains/kingdoms, which is the CORRECT statement?

1

Which statement is CORRECT with respect to the E. coli chromosome?

1

A culture of E. coli is diluted by a factor of x 10-5 and, after plating out 100 µl on an agar plate, 78 colonies grew after incubation at 37oC overnight. The original culture
therefore contained how many viable E. coli cells per ml?

1

Bacterial flagella bring about cell motion by which mechanism?

1

The Bacille-Calmette-Guérin (BCG) vaccine is:

1

Which of the following is only transmitted by direct person-to-person contact?

1

Photoautotophs use:

1

Biochemical synthesis of new cell material is called:

1

Carl Woese of the University of Illinois and his collaborators identified two major branches of prokaryotic evolution. What was the basis for dividing prokaryotes into two domains?

1

Incorporation of atmospheric N2 to NH4+ occurs via the process of:

1

Which of these environmental factors influence microbial growth?

1

The cardinal temperatures are the:

1

‘Necrosis’ is a symptom of infection of a plant with a pathogenic organism. Necrosis is:

1

Phytophthora infestans is a fungus-like organism which:

1

Bacterial genes:

1

The Bacterial chromosome is:

1

The genome of measles virus is composed of :

1

The poliovirus mature virus particle:

1

With regard to the differences between bacterial and eukaryotic cells which statement is the CORRECT one?

1

Which statement is CORRECT with respect to the E.coli chromosome?

1

Which statement is CORRECT with respect to Lipopolysaccharide (LPS)?

1

A culture of E. coli is diluted by a factor of 10(-5) and, after plating out 100 µl on an
agar plate, 142 colonies grew after incubation at 37oC overnight. The original
culture therefore contained how many viable E. coli cells per ml?

1

With respect to differences between members of the archaeal and bacterial
domains/kingdoms, which is the CORRECT statement?

1

Which statement is CORRECT with respect to peptidoglycan?

1

Which of the following is transmitted to humans by arthropods?

1

The antibiotic rifampicin interferes with which of the following?

1

Catalase is indispensable to

1

The CORRECT way to write this microbe’s name is

1

Chemical energy is released when organic or inorganic compounds are:

1

A microbe isolated from deep in the ocean could best be characterized as a:

1

Which of the following is both a selective and a differential medium?

1

The signature sequence is used extensively in:

1

Mature virus particles (Virions) ALWAYS contain:

1

Viruses may encode their genomes as

1

Organisms belonging to the genus Phytophthora are:

1

Which of the following is NOT a correct statement about true fungi

1

With regards to bacterial plasmids which statement is the CORRECT one?

1

A Wild-type bacterial strain is:

Past papers; August 2014 May 2014

Microorganisms MCQ's 2014 Answered

Pasteur is attributed with which one of the following discoveries?

The length of a typical E. coli cell is approximately?

With respect to differences between members of the archaeal and bacterial domains/kingdoms, which is the CORRECT statement?

Which statement is CORRECT with respect to the E. coli chromosome?

A culture of E. coli is diluted by a factor of x 10-5 and, after plating out 100 µl on an agar plate, 78 colonies grew after incubation at 37oC overnight. The original culture therefore contained how many viable E. coli cells per ml?

Bacterial flagella bring about cell motion by which mechanism?

The Bacille-Calmette-Guérin (BCG) vaccine is:

Which of the following is only transmitted by direct person-to-person contact?

Photoautotophs use:

Biochemical synthesis of new cell material is called:

Carl Woese of the University of Illinois and his collaborators identified two major branches of prokaryotic evolution. What was the basis for dividing prokaryotes into two domains?

Incorporation of atmospheric N2 to NH4+ occurs via the process of:

Which of these environmental factors influence microbial growth?

The cardinal temperatures are the:

‘Necrosis’ is a symptom of infection of a plant with a pathogenic organism. Necrosis is:

Phytophthora infestans is a fungus-like organism which:

Bacterial genes:

The Bacterial chromosome is:

The genome of measles virus is composed of :

The poliovirus mature virus particle:

With respect to differences between members of the archaeal and bacterial
domains/kingdoms, which is the CORRECT statement?

A culture of E. coli is diluted by a factor of x 10-5 and, after plating out 100 µl on an agar plate, 78 colonies grew after incubation at 37oC overnight. The original culture
therefore contained how many viable E. coli cells per ml?

A culture of E. coli is diluted by a factor of 10(-5) and, after plating out 100 µl on an
agar plate, 142 colonies grew after incubation at 37oC overnight. The original
culture therefore contained how many viable E. coli cells per ml?

With respect to differences between members of the archaeal and bacterial
domains/kingdoms, which is the CORRECT statement?