Vascular system contains an important feature they have series of tubes which helps to transport nutrients, and water over a distance in plants. The vascular system of phloem, and xylem allows trees (such as redwood) to grow a hundred feet tall.
Mosses do not have vascular system. Without the vascular system liverworts, and mosses are not able to grow large. Mosses are rarely one inch in height. Mosses are small flowerless waxy plants with no stem, and leaves.
Cellular respiration is the process by which the body breaks down the sugar molecules that are eaten in food with the aid of oxygen and covert them into energy, carbon dioxide and water are also produced as by products. Cellular respiration and fermentation are both involved in the breaking down of sugars but cellular respiration occurs in the presence of oxygen while fermentation occurs in the absence of oxygen. Carbon dioxide is breath out by the lungs during cellular respiration.
A stretch of DNA that code for specific proteins is said to be a gene. A gene is transcribed into mRNA. The mRNA has a nucleotide sequence complementary to the corresponding gene. The nucleotide sequence of mRNA is read in the form of genetic codes during the process of protein synthesis to specify the amino acid sequence of proteins. Therefore, genes carry the genetic information for the assembly of proteins and the processes of transcription and translation deliver the stored genetic information.
