Introduction to Microbiology Flashcards
2015-2018
The prokaryotes were divided into two cell groups: Archaeabacteria and Eubacteria. Who is the proponent of this classification system?
A. Robert Whittaker
B. Carl Woese
C. Robert Koch
D. Edward Jenner
B
The prokaryotes are unique from the eukaryotes based on which characteristic?
A. Presence of a nuclear membrane
B. Mitotic division
C. Chemically simple cell wall
D. Presence of 70s ribosomes only
A
Author of Micrographia
A. Louis Pasteur B. Robert Hooke C. Anton van Leeuwenhoek D. Joseph Lister E. Robert Koch
B
Formulated the germ theory of disease
A. Louis Pasteur B. Robert Hooke C. Anton van Leeuwenhoek D. Joseph Lister E. Robert Koch
A
Animal-cules
A. Louis Pasteur B. Robert Hooke C. Anton van Leeuwenhoek D. Joseph Lister E. Robert Koch
C
Used carbolic acid for sterile surgery
A. Louis Pasteur B. Robert Hooke C. Anton van Leeuwenhoek D. Joseph Lister E. Robert Koch
D
You build a time machine to see what the earth looks like before life started. What would you take with you on your trip?
A. Carbon
B. Nutrients
C. Oxygen
D. Chloroplast
C
What differentiates an organism as a prokaryote?
A. The cell components are found within the cytoplasm
B. They have a plasma membrane to protect themselves from their immediate surrounding environment
C. Have DNA and ribosomes in the cell
D. They do not have a membrane-bound nucleus or membrane-bound organelles
D
Which of the following attributes most accurately describes plasma membranes?
A. Provides semipermeable membrane
B. Made exclusively from lipids
C. Are the same in all cells
D. Inhibit integral protein attachment
A
Which of the following characteristics distinguishes facilitated transport from simple diffusion.
Facilitated transport ___________
A. requires the input of cellular energy to transport biomolecules
B. explains the movement of molecules or ions from high to low concentrations
C. uses membrane proteins and channels to transport molecules or ions from high to low concentration
D. describes the movement of biomolecules such as proteins, carbohydrates, and fatty acids
C
Which of the following is the smallest cell?
A. Virus
B. Bacteria
C. Fungi
D. Parasite
B
Which kingdom was postulated by Whittaker
A. Animalia
B. Archaebacteria
C. Eukarya
D. Bacteria
A
True for prokaryotes
A. ribosome 50S and 20S
B. presence of nucleoid
C. multidirectional gene transfer via plasmids
D. presence of DNA histones
B
Spirochetes are considered prokaryotic because
A. have cell membrane
B. have polarity
C. have both DNA and RNA in nucleus
D. have muramic acid in cell wall
D
Which is used to define the field of microbiology?
A. size of the organism
B. technique used regardless of the size of the organism
C. both
D. neither
A
Who was the one who made concepts that link between infective organisms and diseases?
A. Franchoso
B. Pasteur
C. Koch
D. Lister
C
Who disproved spontaneous generation?
A. Koch
B. Pasteur
C. Semmelweis
D. Lister
B
Simple cells that do not have membrane-bound nucleus:
A. prokaryotic
B. urkaryotic
C. eukaryotic
D. deuterokaryotic
A
Cells with relatively complex cytoplasm and a true membrane delimiting the nucleus.
A. prokaryotes
B. urcaryotes
C. norcaryotes
D. eukaryotes
D
Microbiology can be used in bioremediation of pollutants:
A. True
B. False
A
Most pathogens of human diseases belong to the bacterial group.
A. True
B. False
A
Microbes and host will result in disease.
A. True
B. False
B
The composition of the ___ is the basis of the differential reaction of bacteria to the Gram-staining procedure
a. chromosome
b. cytoplasmic membrane
c. cell wall
d. slime layer
C
Study of the interrelationships between microorganisms and the environment
a. microbial growth
b. microbial taxonomy
c. microbial ecology
d. microbial genetics
C
Which of the following is NOT a universal entity among prokaryotes?
a. DNA
b. Cell wall
c. Cell membrane
d. Ribosomes
B
The identification of bacteria by serologic tests is based on specific antigens. Which one of the ff bacterial components is least likely to contain useful antigens?
a. Capsule
b. Flagella
c. Cell wall
d. Ribosomes
D
Extrachromosomal DNA molecules are also known as:
A. Plasmids
B. Plastids
C. Ribosomes
D. Nucleoids
A
Which of the following applies to microorganisms?
A. Microorganisms participate in the carbon cycle and the nitrogen cycle
B. Microorganisms are closely related
C. All microorganisms are unicellular organisms
D. Microorganisms may arise from non-living things
B
Which of the following statements about microbes is correct?
A. All microbes have a genetic material
B. All microbes are distributed throughout the three domains of life
C. Most microbes are harmless, while others cause disease
D. Microbes are parasites, except for eukaryotic mircobes
A
Noncellular entity
A. Algae
B. Bacteria
C. Fungi
D. Virus
D
Microorganisms have characteristics that differentiate them. Which is correct?
a. DNA and RNA are both in virus
b. Fungi and bacteria have peptidoglycan in the cell wall
c. Bacteria and fungi undergo binary fission
d. Virus has independent metabolism activity
C
Bacterial cell membrane is composed of a phospholipid bilayer. Which statement is true?
a. Basic structure of cell membrane contains proteins usually sterols
b. Membrane has roles in synthetic, secretory, electron transport processes
c. Cell membrane is not functional comparable to many eukaryotic organelle
d. Cell membrane of Gram positive and Gram negative are different in composition
B
Enzyme used by aerobic bacteria to break down toxic forms of oxygen?
a. Coagulase
b. Peroxidase
c. Hyaluronidase
B
Which of the following organisms are associated with pili?
a. Virus
b. Fungi
c. Gram positive bacteria
d. Gram negative bacteria
D
How are fungi different from bacteria?
a. Fungi are prokaryotic with true nucleus, 80s ribosomes,
mitochondria and ER.
b. Bacteria are prokaryotes, no true nucleus, 70s ribosomes, and no ER.
c. Both fungi and bacteria contain cell wall and cell membrane contain sterols.
d. Fungi are eukaryotic with true nucleus and 50s and 30s ribosomes.
B
