List the different types of microorganisms based on 1) their source of carbon; 2) the energy sources for
different types of organisms, and 3) the type of energy metabolism in heterotrophs (e.g., oxygen respiration).
Explain with more detail the classifications of your selected pathogen based on the three parameters listed
Describe how enzymes work. Include the terms catalyst, activation energy, substrates, bonding, and products.
Explain how bacteria obtain energy during fermentation and aerobic respiration. Describe the advantages and
disadvantages of both fermentation and aerobic respiration to the bacterial pathogen. Use the number of ATP
generated in your comparison. Indicate the type of process or processes your selected bacterial pathogen use
to get energy.
Briefly describe bacterial growth and binary fission. Define exponential growth and indicate the conditions
necessary for exponential growth. List some of the environmental factors that affect microbial growth. Find
possible environmental factors that your bacterium may encounter and describe them.
Briefly describe the structure of DNA and RNA. Explain the role of DNA and RNA in the formation of proteins;
use the terms replication, transcription and translation in your explanation.
Find information on the DNA sequencing of the chromosome of your selected bacterium to complete the table
below, and compare your bacterial chromosome to the human chromosome one, the largest of the 23 pairs of
chromosomes in the human genome. Define or describe the characteristics shown in the first column.
Selected Bacterial Pathogen Chromosome
Human Chromosome One
Size, mm. (bp x 0.34 x 0.000001)
Encoding segments or genes
Non-encoding segments or pseudogenes
bp = base pairs
Critical thinking question
What is the role of genetic mutations on the development of antibiotic resistance by some bacterial species?
Explain. Are some strains of your selected bacterium resistant to some antibiotics?
Find appropriate graphs or images to illustrate two or three of the processes included in this report. For
example, you could add a figure showing enzyme activation and catalysis work, and an illustration of the DNA
and RNA molecules to show their structure and base pairs.
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