Why Cyanobacteria uses 'light and dark cycle' to prevent oxygen
inhibition on nitrogen fixation?
please explain it in detail using the below reaction
equation.
N2+8H+8e+16ATP-> 2NH3+H2+16ATP
The element oxygen has 2 stable molecular forms (called
allotropes)—O2 and O3. However, nitrogen does not have a stable N3
form. Draw the Lewis structure of N3, and use the structure to
briefly explain why it is unstable. Question to consider: What
feature of a molecule’s Lewis structure corresponds to its
instability (or higher reactivity) ?
Calculate the percent composition and determine the molecular
formula and the empirical formula for the nitrogen-oxygen compound
that results when 12.04 g of nitrogen is reacted with enough oxygen
to produce 39.54 g of product. The molar mass of the product is
92.02 g. Proper significant figures when needed.
Percent Oxygen:
Percent Nitrogen:
Empirical Formula:
Molecular Formula:
Predict the viscosities of molecular oxygen, nitrogen, and
methane at 20°C and atmospheric pressure, and express the results
in mPa·s. Compare the results with experimental data given in
Chapter 1.
14. What is the ecological importance of processes such as
ammonification and nitrogen fixation? 15. When is denitrification
useful for the environment, and when is it detrimental? 16. What is
eutrophication and why does it happen? List some of its
consequences.
In the reaction of nitrogen gas with oxygen gas to produce
nitrogen oxide. What is the effect of adding more nitrogen gas to
the initial reaction mixture? N2+O2-2NO. A) the equilibrium shifts
to produce more N2 b) the temperature of the reaction is raised c)
extra catalyst is required to reach equilibrium d) the equilibrium
shifts to produce more NO e) the equilibrium Is not effected
How does filtrate form? What pressures are
involved? What affect does each pressure have on
formation? Trace a drop of filtrate from its formation to the point
where it turns into urine. Explain ALL
of the micro anatomy; and the physiology that occurs at each
microanatomical structure along the way.
Now trace the drop of urine from the point it becomes urine to
the point it is eliminated from the body. Name all
of the structures and substructures in order.