You may have seen leeks at the grocery store and wondered what sort of vegetable they were. Well, leeks are part of the onion family and, in fact, look like a giant version of green onions. However, the little green onion has a much stronger onion flavor then the leek. Another difference is that you need to cook leeks before eating them. Unlike an onion, you would not add an uncooked leek to a salad!
Nuclear Pore. Quick look:A nuclear pore is a minute opening or passage way through the nuclear envelope. It connects the nucleoplasm (nucleus) with the cytoplasm. The opening is âpluggedâ with an amazing biological valve that only permits selected chemicals to move into and out of the nucleus.
Nuclear pores are protein-based channels in the nuclear envelope. They regulate the movement of molecules from the nucleus to the cytoplasm, and vice versa. In most eukaryotic cells, the nucleus is enclosed by this nuclear membrane in order to separate it from the cytoplasm. Many higher eukaryotic cells have as many as 2,000 nuclear pore complexes in the nuclear membrane of each cell. This membrane or envelope keeps the DNA safe, and contains it within the nucleus.