HLSC 2465U Lecture Notes - Lecture 2: Ribosome, Microtubule, Cytoskeleton
Document Summary
Protein channels inbetween: receptors might be for cell signalling or antigens. Nuclear membrane surrounds the nucleus (nuclear envelope) Nuclear pores act as a security guard allowing to bring stuff in or out such as ribosomes. Some cells can be bi-nucleated such as the bladder. Fluid within is called cytosol: contains organelles such as , mitochondria, endoplasmic reticulum, golgi apparatus, vesicles, lysosomes. Powerhouse contains atp, provides energy for the cell. \ Molecules use this system of tubules and sacs to move from one part of the cell to another (like a delivery service) Rough er: contain ribosomes, transport proteins from the cell into the cell membrane, might be passed back to the golgi apparatus for further processing. Smooth er: muscle detoxification (mostly in muscles, production of lipids, ribosome free. Proteins from the rer come back here. Molecules of carbohydrates may be added on while proteins are passing through.
