Use the permanent marker to label the two 100 mL beakers as “1” and “2”. Pour 50 of the blue beads and 50 of the yellow beads into Beaker 1. Sift or stir the beads around to create a homogenous mixture. Pour 50 of the red beads and 50 of […]

This chapter provides an explanation of what leads to the emergent properties of water and how these properties provide conditions for living organisms to thrive. At one time, it was thought that living things could be found only where a moderate range of abiotic factors (such as temperature & pH) […]

Mrs. Smith and Mrs. Jones had baby girls same day in same hospital.  Mrs. Smith named her baby Shirley and Mrs. Jones named her baby Jane.  Mrs. Jones began to suspect but that the babies had been switched.  Blood tests were done with the following results: Mr. Smith type A  […]

Suppose we use X-ray crystallography to determine the three dimensional structures of leucine and histidine at pH 8. This technique enables the determination of the positions of all the C, N, and O atoms in these two amino acids, but the hydrogen positions cannot be directly visualized with this technique. […]