A vesicle can be thought of like a tiny pouch that surrounds the molecule and ushers it through an opening in the cell membrane. Examples of Selectively Permeable Membranes Selectively permeable membranes can be found around a variety of cells and places.
Weft Knitting Manufacture. Weft knitting is a knitted piece of fabric where the stitches run from left to right horizontally across the fabric. It is usually knitted with one piece of yarn, and can be made either by hand or using a knitting machine.
Warp and weft in plain weaving. In weaving cloth, the warp is the set of lengthwise yarns that are held in tension on a frame or loom. The yarn that is inserted over-and-under the warp threads is called the weft, woof, or filler.Each individual warp thread in a fabric is called a warp end or end.Warp means that which is thrown across (Old English wearp, from weorpan, to throw, cf. German werfen, Dutch werpen).he yarn that is inserted over-and-under the warp threads is called the weft, woof, or filler. Each individual warp thread in a fabric is called a warp end or end.