Uphill example sentences

This whole scheme of transfer of electrons, starting from the PS , uphill to the accepter, down the electron transport chain to PS I, excitation of electrons, transfer to another accepter, and finally down hill to NADP+ causing it to be reduced to NADPH + H+ is called the Z scheme, due to its characterstic shape (Figureure 1 5).Their minds and hearts are filled with sorrow, unrest and tension and they feel that they are unable to move ahead in their lives; they feel life is a painful, uphill struggle, sometimes not worth living.

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