Week 1
The scientists responsible for coining the term ‘cell’ was____
A) Francastoro
B) Hooke
C) Redi
D) Van Leeuwenhoek
B) Hooke
These short, thin, hairlike appendages can attach bacteria to surfaces.
What are fimbriae?
What is the optimum growth temperature for psychrotrophs?
0°C- 35° C
Humans obtain energy from organic molecules and carbon from the same organic sources. This makes them classified as this type of nutritional organism
What is a chemoheterotroph?
This type of microscopy is best for observing live, unstained cells in motion.
What is phase-contrast microscopy
Looking down a microscope, you observe a microbe moving in a jerky, forward motion. This is
most likely to be______.
A) Swimming
B) Swarming
C) Twitching
D) Gliding
E) Spreading
C) Twitching
A growth medium that distinguishes among different groups of bacteria on the basis of their
biological characteristics is called a(n)_________blank medium
A) selective
B) differential
C) enrichment
D) transport
differential
The most common pathway for conversion of glucose to pyruvate is _______
Embden-Meyerhof
Which of these is not a typical trademark of archaea?
A) Unique membrane lipids
B) Unusual metabolic characteristics
C) Found in extreme environments
D) Likely to cause disease in humans
D) Likely to cause disease in humans
In an enveloped virus, the part of the virus including the nucleic acid genome and the surrounding
protein coat but not the envelope is called the_________.
A) capsid
B) nucleocapsid
C) matrix
D) virion
B) nucleocapsid
This plating technique can get you a pure culture?
What is a streak plate
Name one factor you need to consider when trying to grow bacteria?
solute conc, temperature, pH, O2 conc
Which of these microbes would be considered acellular?
A) fungi
B) viruses
C) protists
D) bacteria
E) archaea
B) viruses
These protective layers outside the cell wall resist phagocytosis and desiccation.
What are capsules?
This antibiotic, discovered by Alexander Fleming, works by interfering with the synthesis of peptidoglycan in bacterial cell walls.
What is Penicillin
Gluconeogenesis is not a contributor to_______
A) Acid-base balance
B) Amino acid metabolism
C) Glucose oxidation
D) Synthesis of carbohydrate-related structural components
C. Glucose oxidation
This technique reveals bright cells against a dark background, good for thin microbes
what is darkfield microscopy
Unlike bacteria, archaeal membranes can form this unique structure instead of a bilayer.
What is a monolayer
This term refers to clear zones that appear on a bacterial lawn due to viral infection and lysis are called these
What are Plaques
Name one
The standard reduction potential of a redox reaction is a measure of the tendency of the
__________ to __________ electrons.
A) reductant; gain
B) reductant; lose
C) oxidant; gain
D) oxidant; lose
B) reductant; lose