BIOL 1000 Chapter Notes - Chapter 2: Endoplasmic Reticulum, Intermediate Filament, Nuclear Membrane
Document Summary
The cell is the smallest unit that has the properties of life. Relate the cell theory to the theory of evolution. Just like all cells come form preexisting cells, all living things have a common ancestor. Dna deoxyribonucleic acid, composed of nucleotides: nitrogenous base, pentose sugar, and phosphate group. A large, double-stranded, helical molecule that contains a unique alphabet that provides the instructions for assembling many of the important components of a cell organism. Protein structural proteins provide much of the supporting framework of cells. Motile proteins impart movement to cells and cellular structures. Proteins serve as recognition and receptor molecules at cell surfaces. Proteins regulate the activity of other proteins and dna. Metabolism - the biochemical reactions that allow a cell or organism to extract energy from its surroundings and use that energy to maintain itself, grow, and reproduce. Anabolism- metabolic reactions that require energy to assemble simple substances into more complex molecules.
