STRAIGHTERLINE MICROBIOLOGY TEST PAPER
2026 COMPLETE QUESTIONS WITH VERIFIED
ANSWERS
◉ Jenner. Answer: Who is credited with developing and documenting
the first vaccination procedure against smallpox?
◉ Tyndall. Answer: Whose work on spontaneous generation first
demonstrated the existence of a very heat-resistant form of bacteria that
are called endospores?
◉ Evidence supporting RNA as primary role in evolution of life.
Answer: - Some RNA molecules are catalytic
- RNA catalyzes peptide bond formation during protein synthesis
- ATP (energy currency of cell) is a ribonucleotide
- RNA can regulate gene expression
◉ False. Answer: True or False: Fungi is a protist
◉ Protein. Answer: What does RNA convert information stored in DNA
into?
◉ Woese. Answer: Who began the ribosomal RNA studies that led to
the division of prokaryotic organisms into the Bacteria and the Archaea?
,◉ Eukaryotes (Fungi). Answer: A nonmotile organism composed of
long threadlike structures formed from nucleated cells that is not-
photosynthetic and absorbs its nutrients is likely classified among
________________.
◉ Fluorescence Microscope. Answer: A microscope that exposes
specimens to ultraviolet, violet or blue light and forms an image with the
light emitted as a different wavelength
◉ Safranin. Answer: The counterstain in the gram-stain
◉ Purple; colorless. Answer: After the decolorizer has been added,
gram-positive organisms are stained __________ and gram-negative
organisms are stained __________.
◉ Decreases. Answer: As the magnification of a series of objective
lenses increases, the working distance ____________.
◉ Mycolic Acids. Answer: Acid-fast organisms such as Mycobacterium
tuberculosis contain lipids constructed from what in their cell walls?
◉ Food and water. Answer: Fatty acid methyl ester (FAME) analysis is
particularly important in public health because in this application,
microbiologists seek to identify microbial pathogens in __________.
, ◉ Rickettsia. Answer: According to genome analysis, a member of the
genus _____________ is most closely related to the mitochondrion.
◉ "Gold Standard" Taxonomic Methods. Answer: - DNA-DNA
hybridization (DDH)
- Melting temperature of the DNA (a reflection of the G + C content)
- Average nucleotide identity
◉ Anagenesis. Answer: Small, random genetic changes that occur over
generations
◉ Reasons why some scientists believe the term "prokaryote" is an
artificial designation and should be discarded. Answer: - Some bacteria
have internal membrane structures
- Some bacteria have their genetic material enclosed within a membrane
- Many bacteria have cytoskeletal elements
◉ Bacterial plasmids....... Answer: - Can replicate independently of the
chromosome
- May carry genes for drug resistance
- May carry genes that enhance survival of the bacterium under certain
conditions
◉ Characteristics of Active Transport. Answer: - Saturable uptake rate
- Use of ATP or a proton gradient as a source of metabolic energy
2026 COMPLETE QUESTIONS WITH VERIFIED
ANSWERS
◉ Jenner. Answer: Who is credited with developing and documenting
the first vaccination procedure against smallpox?
◉ Tyndall. Answer: Whose work on spontaneous generation first
demonstrated the existence of a very heat-resistant form of bacteria that
are called endospores?
◉ Evidence supporting RNA as primary role in evolution of life.
Answer: - Some RNA molecules are catalytic
- RNA catalyzes peptide bond formation during protein synthesis
- ATP (energy currency of cell) is a ribonucleotide
- RNA can regulate gene expression
◉ False. Answer: True or False: Fungi is a protist
◉ Protein. Answer: What does RNA convert information stored in DNA
into?
◉ Woese. Answer: Who began the ribosomal RNA studies that led to
the division of prokaryotic organisms into the Bacteria and the Archaea?
,◉ Eukaryotes (Fungi). Answer: A nonmotile organism composed of
long threadlike structures formed from nucleated cells that is not-
photosynthetic and absorbs its nutrients is likely classified among
________________.
◉ Fluorescence Microscope. Answer: A microscope that exposes
specimens to ultraviolet, violet or blue light and forms an image with the
light emitted as a different wavelength
◉ Safranin. Answer: The counterstain in the gram-stain
◉ Purple; colorless. Answer: After the decolorizer has been added,
gram-positive organisms are stained __________ and gram-negative
organisms are stained __________.
◉ Decreases. Answer: As the magnification of a series of objective
lenses increases, the working distance ____________.
◉ Mycolic Acids. Answer: Acid-fast organisms such as Mycobacterium
tuberculosis contain lipids constructed from what in their cell walls?
◉ Food and water. Answer: Fatty acid methyl ester (FAME) analysis is
particularly important in public health because in this application,
microbiologists seek to identify microbial pathogens in __________.
, ◉ Rickettsia. Answer: According to genome analysis, a member of the
genus _____________ is most closely related to the mitochondrion.
◉ "Gold Standard" Taxonomic Methods. Answer: - DNA-DNA
hybridization (DDH)
- Melting temperature of the DNA (a reflection of the G + C content)
- Average nucleotide identity
◉ Anagenesis. Answer: Small, random genetic changes that occur over
generations
◉ Reasons why some scientists believe the term "prokaryote" is an
artificial designation and should be discarded. Answer: - Some bacteria
have internal membrane structures
- Some bacteria have their genetic material enclosed within a membrane
- Many bacteria have cytoskeletal elements
◉ Bacterial plasmids....... Answer: - Can replicate independently of the
chromosome
- May carry genes for drug resistance
- May carry genes that enhance survival of the bacterium under certain
conditions
◉ Characteristics of Active Transport. Answer: - Saturable uptake rate
- Use of ATP or a proton gradient as a source of metabolic energy
