Valine is an amino used to make proteins. it is an essential amino acid meaning the body cannot synthesize it and thus, it must obtained from food sources. it’s side chain is an isopropyl group. what property of valine would you expect from this side chain?

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.