IBIO 425 Lecture Notes - Lecture 21: Nuclear Membrane, Nuclear Pore, Liposome
Document Summary
Cell membranes are said to be ________ because they allow some substances to pass but not others. selectively permeable. The nucleus is surrounded by a nuclear envelope. Communication between the nucleus and cytosol occurs through nuclear pores. ________ proteins extend all the way across the cell membrane. An additive to creams and lotions and a drug-delivery vehicle. Intermediate filaments provide the cell with strength. stabilize the position of organelles. form the neurofilaments in nerve cells. transport materials within the cytoplasm. The cellular organelle(s) responsible for packaging and transporting proteins is/are the. An immunoliposome is a liposome that can recognize cancer cells. Not a nonmembranous organelle lysosome nonmembranous organelle centriole ribosome cytoskeleton cilia. Microtubules are the largest cytoplasmic fibers. are composed of tubulin. are hollow, filamentous structures. form cilia that aid in cell movement. the thinnest protein fiber actin fibers (microfilaments) Ribosomal rna is formed by nucleoli. mitochondria produce most of a cell"s atp contain dna or rna.
