Proteins are chains of amino acids. There are twenty different types of naturally occuring amino acids, and all organisms must have all twnety of them in order to survive. In this project we will be discussing the amoinio acid leucine. What are two ways that yeast get their amino acids, like leucine

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

i do not get it   at all

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