LIFE 102 Lecture Notes - Lecture 4: Golgi Apparatus, Mitochondrial Matrix, Cell Membrane
Document Summary
Most cells are 1 um - 100 um. Ribosomes: contain the instructions to make proteins from the dna. Ribosomes carry out the instructions, with the aid of certain rna molecules. Ribosomes are large complexes of protein and rna. Most ribosomes are (cid:396)free(cid:397) in the cytosol. Some are bound to the er or the nucleus. Endomembrane system: regulates protein traffic and performs metabolic functions. These components are either continuous or connected via transfer. Er: packs proteins in vesicles and sends the vesicle to its next destination vesicles. Golgi apparatus: stacks of flattened membrane sacs; shipping and receiving center. Functions of added groups (cid:396)address label(cid:397) for proper destination. Lysosomes: digestive enzymes vesicles; digestion of food particles and. Vacuole: large er/golgi derived vesicles; sturdiness and storage. Mitochondria change energy from one form to another. Chloroplasts change every from one form to another. Have their own dna and ribosomes; enveloped. They have a smooth outer membrane and an inner membrane folded into cristae.
