HNRS 1007 Lecture Notes - Lecture 3: Chloroplast, Plant Cell, Nuclear Membrane
Document Summary
Cell--- the simplest collection of matter that can be alive. Both contain: plasma membrane, semifluid substance called cytosol, chromosomes, ribosomes. It survived, continued life similarly to that of the original bacteria from the shell, thus created first synthetic cell". Internal membranes (endomembrane system: forms all multi-cellular organisms (like plants and animals, generally much larger than prokaryotes, plant cells. Has cell wall, chloroplast, and very large vacuole: the nucleus. Chromatin= dna associated w/ proteins in nucleus. Nuclear pores control passage in and out of nucleus. Nuclear lamina maintains shape of nucleus (infrastructure), composed of protein: cytoplasm. On outside of endoplasmic reticulum and nuclear envelope. Proteins do almost nothing; mostly rna actually reacting: endoplasmic reticulum. More than half of total membrane in cell. Has bound ribosomes, which secrete glycoproteins (coalently bonded to carbohydrates. Assists in transportation of hydrophobic substances across cytoplasm: golgi apparatus. The post office" or packaging plant" of the cell. Membranous sac of enzymes that digests macromolecules.
