Complete Solutions 2025-2026
Updated.
Normal microbiota - Answer Beneficial microbial inhabitants of the body
Golden Age of Microbiology - Answer Rapid discovery of basic microbiology principles
Re-emerging diseases - Answer Once controlled by preventative public health measures,
they are now on the rise
Prions - Answer Resistant to the usual sterilization procedures for pathogens
Spontaneous generation - Answer The converse of biogenesis
Acellular infectious agent - Answer Chemical composition includes RNA or DNA
All of the following are examples of new emerging infectious diseases except - Answer
Chickenpox
In the scientific name Bacillus anthracis, the term Bacillus is the - Answer genus name
Bacteria - Answer -include the agents responsible for stomach ulcers and plague
-are prokaryotes
-are the most metabolically diverse group
Fungi - Answer -impart distinctive flavors in foods such as yogurt and cheese
-include molds and yeasts
Viruses - Answer -are obligate intracellular parasites
-have a protein coat that surrounds the genetic informatio
Protists - Answer -contain the protozoa and algae
-derive their energy from degrading organic materials
,Which one of the following would be consistent with the idea of spontaneous generation? -
Answer Sick people give rise to microorganisms in their body
Which one of the following sequences exhibits increasing size? - Answer Viruses to bacteria
to protozoa
Which one of the following is not a role for bioremediation? - Answer Curing infectious
diseases
All of the following characteristics apply to the prokaryotes except - Answer they reproduce
by mitosis
How is water balance controlled in bacterial cells? - Answer Water movement by osmosis
AND the cell wall prevents bursting, but NOT water is limited by the cell membrane
The Gram stain technique is valuable in distinguishing - Answer different types of bacteria
A bacterial arrangement called a sarcina has which of the following morphological shapes? -
Answer Spheres in packets of eight
Bacterial ribosomes are distinct from eukaryotic ribosomes. They have the same function of -
Answer assembling protein
Flagella - Answer - permit eukaryotic motility
- Contain components of the electron transport chain for ATP generation
- Contain components of the electron transport chain for ATP generation
- are used for chemotaxis
Plasma Membranes - Answer - are involved in group translocation
- are involved in group translocation
Chromosomes - Answer - are involved in group translocation
- replication is followed by binary fission
- are closed circular single molecules
Nucleoid - Answer Stores essential genetic information
, Glycocalyx - Answer Prevents phagocytosis; attachment
Plasmid - Answer Contains a few genes; not essential for cell
Metachromatic granules - Answer Site of nutrient accumulation in cell
Fimbriae - Answer Short straight hair-like fibers
Gram (-) cell wall - Answer Rigid outer boundary
Most of the human pathogens are - Answer mesophiles
Which of the following conditions are most likely to affect the growth of bacteria? - Answer
temperature, oxygen, and pH
Which of the following methods of measuring population growth is a viable cell count? - Answer
standard plate count using a dilution series
At what point in the bacterial growth curve are bacteria most vulnerable to antibiotics? -
Answer log phase
The interval of time between successive binary fissions of a cell or population of cells is known
as the - Answer generation time
A differential medium is one that - Answer distinguishes colonies of one type of bacterium
from those of another type
A soil sample is added to a culture medium that has been designed to promote the growth of
the genus Pseudomonas while inhibiting the growth of fungi. This test uses a - Answer
selective medium
Facultative bacteria are those that - Answer grow in the presence or absence of oxygen
Psychrophiles and thermophiles differ with respect to their - Answer best temperature for
growth
Mesophile - Answer this group has most of the the pathogens as they grow at body
temperature