(solution) Microbiology Unit 2 Applied and Environmental Assignment Part 1:

(solution) Microbiology Unit 2 Applied and Environmental Assignment Part 1:

please help me with this microbiology assignment. It is due tomorrow 12pm (EST)

Microbiology Unit 2 Applied and Environmental Assignment
Part 1: Identify Nutritional requirements from Chapter 6 & 14 (and review from chapters 1 & 2)
1. Determine which of the 4 macromolecules require the following elements:
a. Carbon:
carbohydrates___
lipids___
proteins___
nucleic acids___
b. Nitrogen:
carbohydrates___
lipids___
proteins___
nucleic acids___
c. Sulfur: carbohydrates___ lipids___ proteins___ nucleic acids___ 2. The essential elements mentioned above are cycled through cells and the earth in biogeochemical cycles
like the carbon cycle, the nitrogen cycle, and the sulfur cycle. Select the correct answer and fill in the blanks
to summarize these cycles:
a. Carbon dioxide is taken in from the atmosphere by [autotrophs/heterotrophs] and converted to
glucose through carbon ________________. When heterotrophs eat autotrophs they catabolize
glucose to make ATP through __________________ and waste carbon is released as ___________.
b. There is plenty of nitrogen available in the atmosphere but it is not accessible to organisms because it
is in the form of Nitrogen gas (N 2). N2 is fixed by [bacteria/plants/animals] and converted to ammonia
(NH3.) NH3 can be used by [bacteria/plants/animals] to build their cells. Next, by consuming food with
amino acids, [bacteria/plants/animals] can get access to nitrogen for their own cellular needs.
c. There is also a good quantity of sulfur in dirt, rocks, and the atmosphere. Sulfur cycles between H 2S =>
S0 => SO4 => SH groups in Proteins => back to H2S. Using _________________ respiration, anoxygenic
photosynthesis, and chemolithoautotrophy [bacteria/plants/animals] convert H2S and S0 to SO4 which is
taken in by [bacteria/plants/animals] and used to build their cells. When [bacteria/plants/animals] eat
plants they take in essential amino acids containing sulfur and recycle these to make their own
proteins.
d. _________________ break down waste and dead organisms and recycle nutrients back into the cycles.
*The C and N are summarized here: https://youtu.be/2D7hZpIYlCA and https://youtu.be/leHy-Y_8nRs
3. Identify the main metabolic classifications:
a. A microbe that makes its own food by taking carbon from CO 2 in
the atmosphere and its energy from sunlight
b. A microbe that makes its own food by taking carbon from CO 2 in
the atmosphere and its energy from reduced inorganic chemicals
c. A microbe that eats other organisms to get organic carbon and
energy
d. A microbe that uses organic carbon from others but energy from
sunlight
Part 2: Unique ecosystems containing microbes 4. Watch the video that shows hydrothermal vents: https://youtu.be/RO3nO98gH_M
a. Describe bacteria that live at the vents using terms from the unit 2 reading guide:
________________________________________________________________________
b. Write a 3-4 sentence reflection about hydrothermal vents and the contribution of microbes to this
ecosystem: 5. Apply what you have learned to the TED-Ed video about Biofilms: https://youtu.be/pHLP5CZMnL4
a. Identify the cell structures mentioned in the video that we learned in Chapter 4 and 7:
i. ?sticky appendages? that allows bacteria to attach and begin the biofilm:
_______________
ii. Extracellular matrix/gooey matrix that holds cells together: ____________________________
iii. Exchange genetic information while packed together:
____________________________
iv. Communicate with each other by _________________________________________ sensing.
v. Produce chemical to kill microbial competitors:
____________________________ factor.
b. Write 2 sentences to summarize the contributions of microbes to global ecosystems: Part 3: Complete the concept map to examine ecosystem relationships from Chapter 14
Sunshine
9c._____________ CO2 in atmosphere Soil
9a._______________ 9g._____________
Uses light energy
9d._____________
(photoautotroph)
Uses inorganic
compounds for energy Recycle dead
organic matter
9b._____________ 9h._________________
(chemolithoautotroph) Consumes autotrophs
9e._________________ Causes of energy loss
9i.___________________ Consumes other
heterotrophs 9j.___________________ 9f.__________________
Word Bank for Concept map:
Secondary consumer
Carbon fixation
Primary Consumer
Nutrients Conversion to biomass
Decomposers Solar energy
Heat Primary producer
Primary Producer