Genetic information is found in the DNA. It consists of four nucleotides: adenine, thymine, cytosine and guanine. The DNA information is transcribed to an RNA molecule. This molecule is copied from DNA in a process known as transcription. The RNA is formed by four nucleotides similar to DNA but instead of thymine, the uracil is found in the RNA. This information is translated to produce the proteins, determining the amino acid sequence that is encoded in the DNA and subsequently in the RNA.
Parenchyma has a thin cell wall of their cells, and are made up of cellulose. Whereas collenchyma cells have an uneven cell wall made up of pectin and hemicellulose. There is a hard and thick cell wall present of the sclerenchyma cells, which is made up of the lignin.
