Active transport is a method of transport of ions or molecules along the cell membrane in the cell from lower to higher concentration region and which needs cellular energy.
There are three main types of Active Transport. They are:
In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".
I closed the window just in time and (return) to my room with relief.
In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence. Having or involving an extreme or irrational fear of or aversion to something.
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