Answer:
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Explanation:
the answer is slippery touch
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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:
Answer:
It conducts electricity
It conducts heat
Water is needed for rusting
Explanation:
Metals refer to elements that are found towards the left hand side of the periodic table of elements. They are found in groups 1- 13 and few of them are also found at the bottom of groups 14 and 15.
Now these metal have certain properties that are general to all of them. two of these properties listed among the options in the question are;
i) They conduct electricity
ii) They conduct heat
These properties apply to all metals universally.
Rusting is an electrochemical reaction in which hydrated iron III oxide is formed. In the electrochemical reaction, water in intimately involved in the process. Hence; oxygen and water are required for rusting to take place.
Answer: Places located at high latitudes receive less sunlight than places at low latitudes. The amount of sunlight and the amount of precipitation affects the types of plants and animals that could live in a specific place.
Explanation:
Answer:
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
Explanation:
