Bios 1300 Exam with complete solution

Bios 1300 Exam with complete solution stratum basale In which layer of the epidermis does cell division occur? stratum corner in which layer of the epidermis would you find dead keratinocytes filled with keratin papillary dermis the superficial layer of the dermis is called subpapillary plexus What makes the boundary between the papillary dermis and the reticular dermis cutaneous plexus network of blood vessels between reticular layer and hypodermis stratum basale In the epidermis, where are the bodies of melanocytes found? cytosol What is the name for the aqueous solution inside the cell? glucose Which of the following is NOT amphipathic? Phospholipids Cholesterol Glucose Glycolipids yes are phospholipids amphipathic? not strongly is cholesterol amphipathic? yeah are glycolipids amphipathic? no is glucose amphipathic? to allow the passage of ions through the membrane What is the job of the channel protein To relay an external message into the interior of the cell. What is the job of a receptor protein? To transport small, polar molecules like glucose. To link proteins outside the cell to the cytoskeleton To relay an external message into the interior of the cell. to mark the identity of the cell tha action of the Na/K pump an electrochemical gradient results from the ability of the membrane to absorb ions the action of carrier proteins tha action of the Na/K pump Simple diffusion of ions through the membrane Facilitated diffusion When a substance moves down its concentration gradient but needs help