Your first assignment is to provide information to the firm BigMoney Inc, a chemical producer in Kansas interested in using micr
obes to clean toxic spills (bioremediation). BigMoney Inc. has had a major spill of inorganic Nitrite (N02-) that contaminated the soil around their plant. Scientists at BigMoney have developed mechanisms for removing NH4+ from soil, but have not found one for N02-. They want to know on a strictly theoretical basis (regardless of whether bacteria exist in nature that actually do these specific reactions) if there are any types of bacteria that could metabolize N02- to give rise to NH4+?Nitrite (N02-) to Ammonium (NH4+).a) Is this an oxidation or reduction?b) Is N02- acting as an electron acceptor or donor?
Bacteria that metabolize NO2- to give rise to NH4+ belongs to the family of denitrifying bacteria and nitrate ammonification bacteria such as pseudomonas.
Explanation:
Denitrifying bacteria uses NO2- as electron aceeptor thus converting the nitrite ion (NO2-) to ammonium ion(NH4+).
a) The above reaction is a reduction reaction because NO2- or nitrite ion accept electron to generated its reduced form known as ammonium(NH4+).
b) NO2- acting as electron acceptor in this reaction.
C) maleness results from the minimal presence of one Y chromosome
Explanation:
From the given question, it can be clearly observed that in males irrespective of whichever syndrome they have a Y chromosome is always present whereas in females Y chromosome is not present.
Hence, one cal conclude that whenever the Y chromosome is present the individual acquires male characters.
The Y chromosome whenever present produces the hormones that leads to maleness, and the number of Y chromosomes in males can also be more than one such as in case of XYY Klinefelter syndrome.
UVB radiation increases? This damages the eyes, skin and immune system! Sorry! I just guessed because there were no choices that went along with the question!
The correct answer to this question is "biosphere." The biosphere is composed of all living organisms. It is the global sum of all ecosystems in the Earth where all living things exist. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.
