BIOL 2160 Lecture : Ch2 Notes
Document Summary
Molecular biology a general understanding of molecular biology is necessary for understanding human physiology: molecular interactions are driven by chemical bonds physiological processes are based on molecular interactions. Biomolecules (carbon, hydrogen, oxygen synthesized by living organisms and contain carbon atoms carbon atoms usually arranged in series (carbon backbone) with different functional groups branching off. Biomolecules: carbohydrates, monosaccharides contain carbon, hydrogen and oxygen in a 1:2:1 ratio ring structure. 2 major purposes: energy storage and structural support (building material: animals store as glycogen (in liver and skeletal muscle, mono - glucose, fructose, galactose. What do cells do? plasma membrane - maintains boundary of cell and integrity of cell structure; embedded proteins serve multiple functions nucleus - houses the dna, which dictates cellular function and protein synthesis nucleolus - synthesis of ribosomal rna. Rough er - protein synthesis and post-translational processing smooth er - lipid synthesis and post translational processing of proteins; transport of molecules from er to golgi apparatus; calcium storage.
