Enzymes Essay Example | Topics and Well Written Essays - 3000 words

Enzymes - Essay Example Then we will utilize acquired information to examine a given experiment. type of organic molecule that contained gene makeup in biological existence (pg. 50, Barrick, Scientific American). DNA seemed to be an evolved trend later down the centuries. DNA now possesses all information concerning the constructs of the human body, including the structure of enzymes. Enzymes In comparison to DNA, RNA differs in nucleic acid component such as To understand the process of creating enzyme RNA proliferation, we have to explore how they are produced and pinpoint theirpurpose in modern cells. The process commences when RNA polymerase, an enzyme, attaches to DNA strands and copies portions of it. RNA polymerase unwinds and opens the double stranded DNA and reads the nucleotides and matched them up with composite nucleotides that fit. After transcription is done, the messenger RNA (mRNA) is released and capped on each side of the strand to prevent the enzymes outside the nucleus from disintegrating it. These mRNA are photocopies of the DNA. Now when the strand reaches outside, it is quickly read by ribosomes. Ribosomes are composed of ribosomal RNA (rRNA) that essentially deals with the synthesis of proteins. The ribosomes read the nucleotides assembled in sets of three called codons. Each codon sequence has a specific amino acid it pairs up with. Each amino acid is distributed tRNA or transfer RNA. After each codon is translated, the appropriated amino acid are assembled in the order of the codons on the mRNA and fused to together through the process of dehydration synthesis. Then that protein will leave the ribosome while the mRNA disintegrates for its extended exposure to the catalytic enzymes outside the nucleus. The components of the disintegrated mRNA are recycled. That protein can be an enzyme fit for meta bolic activity. For a catalytic activity, the molecules at the beginning of the process are called substrates, and the enzyme breaks them down into different molecules, the products. Almost all processes in the cell need enzymes in order to occur at significant rates. Since enzymes are extremely selective for their substrates and speed up only a few reactions from among many possibilities, the set of enzymes made in a cell determines which metabolic pathways occur in that cell. Enzymes work by lowering the activation energy for a reaction, thus dramatically increasing the