Both glycogen and starch are polysaccharides of glucose units, formed by alpha(1-4) glycosidic linkages. Cellulose is also a glucose polysaccharide and makes the strong cell walls of plants. It is formed by glycosidic linkages of the opposite orientation, beta (1-4) instead of alpha(1-4). The former two are easily digestable, but the latter is not. Thinking about the overall structure of the two polysaccharides, can you devise an explanation as to why the former is easily digested and the latter not?

The carrier molecules of the electron transport system are located in the

"your temperature analysis reveals a pattern with coldest temperatures located to the portion of the map."

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.