Nitrogen.
Plants cannot use atmospheric nitrogen directly. Nitrogen from the air must be converted into the different form so plants can absorb it. Thus plants need nitrogen-fixing bacteria to convert atmospheric nitrogen into ammonium, which is available for plants to absorb it.
First it is a kind of protein that is capable of pumping out compounds. For example, sodium potassium ATPhase is a transmembrane pump that pumps out 3 Na+ ions for the cell.
The answer to this question is D
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Answer:
The primary difference between repressible and inducible systems is the result that occurs when the effector molecule binds to the repressor. ... Thus, for the trp operon , the addition of tryptophan (the effector molecule) to the E. coli environment shuts off the system because the repressors binds at the operator.
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Answer:
how does it work, how does motor function relate to the brain, what are the different sections of the brain.
Explanation:
