The portal vein directs blood from the GI tract to the liver. The liver is the first organ to receive nutrients that are absorbed from the GI tract. It is the ‘gatekeeper’ and is responsible for filtering out possible toxins before they reach delicate tissues such as the brain.
A nucleus is the control center of a cell.
C. And if the cell is too big, too little material will pass the membrane fast enough to increase the cellular volume (all credit goes to litterally the first website that pops up when using Google jgdibicibsif) I hope this helps (I'm also guessing your taking living environment. Good luck on that UwU) OwO.
It’s true, they make up the plasma membrane of cells and store energy.