Assignment1 Essay Example | Topics and Well Written Essays - 1000 words - 1

Assignment1 - Essay Example Its major function is to carry the genetic information to the cytoplasm for the protein synthesis process. However, DNA is present in the nucleus mainly to store the genetic information. DNA is short lived and double stranded while mRND is single stranded and has a short lifespan. A DNA chemical test can be carried out to observe their performance in genetic synthesis. c. Starch and cellulose are polymers having very similar characteristics. They have similar glucose based repeat units and are made up of the same monomer. However, all the repeated units in starch are oriented in one direction while in cellulose; every successive unit of glucose is rotated 180 degrees of around the axis of the backbone chain of the polymer. In experiments, starch is soluble in warm water while cellulose is tough and can only be broken down into simpler units when treated with acids at high temperatures. Starch is therefore used as a major source of energy in human food while cellulose is used in making fibre materials (Markussen et al., 2002). d. Amylose is a D-glucose unit polysaccharide that forms 20-30% of the total starch structure while Amylopectin forms the remaining percentage of the cell starch structure. In experiments, the amylase components do not dissolve in water while Amylopectin dissolves in water. Structurally, Amylose can appear in a pair of distinct helical forms or in a distorted amorphous confirmation. Amylopectin , however, has a non-random branching determined by enzymes and glucose residues (Markussen et al., 2002). e. Myoglobin is a monomer that binds oxygen more tightly than hemoglobin as reflected when oxygen is in the bloodstream is observed to move from hemoglobin to myoglobin. On the other hand, hemoglobin is a tetramer made up of a pair of related subunits of alpha and beta. Their functional difference can be observed in an oxygen uptake experiment under similar conditions for oxygen