BIOL 1201 Lecture Notes - Lecture 1: Fruit Soup, Lectin, Tight Junction
Document Summary
Separate entity from the cell: remove the contents from the cell and the cell membrane and still have a cell wall, much more passive structure, really there just for structural reasons. Generally has fairly large pores: allows things to pass through fairly easily, plasma membrane = thin dark line. Plants made up of cellulose fungi made up of cellulose or chitin (made up of amino sugars: chitin found in exoskeletons of insects. Bacteria made up of peptidoglycans (combination of amino sugars and amino acids: most have carbohydrate base to then, cell walls are composed primarily of carbohydrates. Two ways to connect cells: cell adhesion (glue) As the fruit ripens, enzymes break down the pectin and. People put in jams and jelly: takes fruit soup and glues it all together lectin. Cytoplasm is almost connected tight junctions (holding cells together; bolting two cells to each other), intermediary junctions, desmosomes.
