PLZ HELP ASAP What is the common name of this organism?
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Answer:
a) the diffusion length = 1000 micrometers;
so if the diffusion co-efficient is also known or given; we can therefore deduce the time taken( i.e how long it would take for a message to reach from one side of the cell to the other).
b) We need to be given the data value concerning the diffusion coefficient of the protein.
c) 1.234 × 10⁷ seconds
Explanation:
a)
In a controlled transportation that occurs in diffusion; the time taken can be expressed as:
Now; if a message is passed through a ion, From studies; we know that these
ions are infinitesimally smaller in size in the
channels.
Also the information being carried through the ions are bound to be transported diagonally across the cell.
However; the diffusion length = 1000 micrometers;
so if the diffusion co-efficient is also known or given; we can therefore deduce the time taken( i.e how long it would take for a message to reach from one side of the cell to the other).
b) Since; we don't know the information concerning the diffusion coefficient of the protein, then it is quite not possible to determine how long it would take for a message to be transmitted through the diffusion of a small protein.
c) Here; we are given the value of the diffusion coefficient to be = 0.2 micrometer²/seconds
In a transmembrane protein; the diffusion length is half the circumference of the cell which is =
=
= 1570.8 micrometers
Now;the time taken can now be calculated as:
Given :
A 10.99 g sample of NaBr contains 22.34% Na by mass.
To Find :
How many grams of sodium does a 9.77g sample of sodium bromine contain.
Solution :
By law of constant composition , in any given chemical compound, the elements always combine in the same proportion with each other.
Therefore , percentage of Na by mass in NaBr will be same for every amount .
Percentage of Na in 9.77 g NaBr is 22.34 % too .
Gram of Na = .
Hence , this is the required solution .