Water is the most important inorganic molecule to all living things. Carbohydrates, lipids, proteins, and nucleic acids are the most important organic molecules. The carbohydrates provide a source of energy, the lipids provide the major components of membranes, the nucleic acids provide information storage, and the proteins provide a variety of functions such as cell structure and long-term nutrient storage. The monomers of carbohydrates are monosaccharides, glycerol and fatty acids for lipids, nucleotides for nucleic acids, and amino acids for proteins. Monomers are the building blocks of the most important organic molecules. Prokaryotes are always single-celled and have no nucleus while Eukaryotes can be single or multicellular and have …show more content…
Different cells use different methods of reproduction because some cells can only use mitosis and some can use meiosis and need genetic diversity. Mitosis results in 2 identical cells and meiosis results in 4 unique cells. The purpose of mitosis is to make new copies of cells and the purpose of meiosis is to produce gametes for sexual reproduction. Prophase, Metaphase, Anaphase, and Telophase. Crossing over (exchanging DNA among chromosomes), independent assortment (alleles separating during gamete production), and random fertilization or ways that genetic diversity can occur during meiosis. Crossing over occurs in prophase, independent assortment occurs in metaphase and anaphase, and fertilization occurs in meiosis 2. 4 unique daughter cells. At the molecular level, a gene is a sequence of nucleotides. Genes are passed down through sexual reproduction. DNA is transcribed into RNA which is translated to become a