MCB 100 EXAM 1 ICLICKER || 100% VERIFIED ANSWERS.
What is the purpose of the scientific method? correct answers To minimize bias and error in
experiments.
Which invention was critical to the establishment of the field of microbiology? correct answers
microscope
What is the best tool for visualizing viruses? correct answers electron microscope
How much smaller is a bacterium (~1 um) than a human (~1-2 m)? correct answers One million
times smaller
Many biological samples are transparent, so how do we visualize them using microscopes?
correct answers Treat them with chemicals
What is one way that prokaryotes do not react to their environment? correct answers None of the
above (they swim, tumble, hold on, build a fort, and explode)
Dr. Ralph Wolfe isolated the first methanogen in pure culture. How did this contribute to dr. carl
woese's reorganization of the tree of life into three domains? correct answers It was comparisons
between the 16S rRNA of methanogens, which are archaea, eukarya and bacteria that resulted in
recognizing the difference among these three domains.
all cells have similar composition. Which of the following is the most abundant macromolecular
components in a cell? correct answers Proteins (55 percent of the cell is proteins)
Many proteins are enzymes. How do enzymes catalyze reactions? correct answers By lowering
activation energy needed to trigger a reaction. Trying to facilitate a reaction that could happen,
but making it happen faster and easier.
, What is the FIRST step of protein catabolism? correct answers Proteases break down proteins
into their constituent amino acids. Proteins are large.
ellular respiration results in the complete breakdown of_______to______and_____. correct
answers Glucose/ CO2/ H2O
what is the function of photosynthesis systems within photosynthetic cells like cyanobacteria?
correct answers To absorb light energy and store it as ATP and NADPH.
What type of
microscope captured this
image of Staphylococcus
Aureus? correct answers SEM
What term describes the total number of different organisms found in a given location? correct
answers Biodiversity
Where would you be most likely to find homogeneous microbial populations? correct answers
hot spring
The "greenhouse gas" methane is produced by? correct answers archaea
Without human influence, there could not be an excess of CO2 in the atmosphere? correct
answers false
Why are some synthetic compounds difficult for microbes to biodegrade? correct answers
Microbes lack the enzymes to degrade them
What is the purpose of the scientific method? correct answers To minimize bias and error in
experiments.
Which invention was critical to the establishment of the field of microbiology? correct answers
microscope
What is the best tool for visualizing viruses? correct answers electron microscope
How much smaller is a bacterium (~1 um) than a human (~1-2 m)? correct answers One million
times smaller
Many biological samples are transparent, so how do we visualize them using microscopes?
correct answers Treat them with chemicals
What is one way that prokaryotes do not react to their environment? correct answers None of the
above (they swim, tumble, hold on, build a fort, and explode)
Dr. Ralph Wolfe isolated the first methanogen in pure culture. How did this contribute to dr. carl
woese's reorganization of the tree of life into three domains? correct answers It was comparisons
between the 16S rRNA of methanogens, which are archaea, eukarya and bacteria that resulted in
recognizing the difference among these three domains.
all cells have similar composition. Which of the following is the most abundant macromolecular
components in a cell? correct answers Proteins (55 percent of the cell is proteins)
Many proteins are enzymes. How do enzymes catalyze reactions? correct answers By lowering
activation energy needed to trigger a reaction. Trying to facilitate a reaction that could happen,
but making it happen faster and easier.
, What is the FIRST step of protein catabolism? correct answers Proteases break down proteins
into their constituent amino acids. Proteins are large.
ellular respiration results in the complete breakdown of_______to______and_____. correct
answers Glucose/ CO2/ H2O
what is the function of photosynthesis systems within photosynthetic cells like cyanobacteria?
correct answers To absorb light energy and store it as ATP and NADPH.
What type of
microscope captured this
image of Staphylococcus
Aureus? correct answers SEM
What term describes the total number of different organisms found in a given location? correct
answers Biodiversity
Where would you be most likely to find homogeneous microbial populations? correct answers
hot spring
The "greenhouse gas" methane is produced by? correct answers archaea
Without human influence, there could not be an excess of CO2 in the atmosphere? correct
answers false
Why are some synthetic compounds difficult for microbes to biodegrade? correct answers
Microbes lack the enzymes to degrade them
