AP BIOLOGY

Detailed explanation-1: -Pinocytosis is a form of endocytosis involving fluids containing small solutes. In humans this process occurs in cells lining the small intestine and is used primarily for absorption of fat droplets.

Detailed explanation-2: -Once inside the cell, the protein is digested into its constituent amino acids, which are reabsorbed through the basolateral membrane into the interstitial fluid. Because pinocytosis requires energy, it is considered a form of active transport.

Detailed explanation-3: -Answer and Explanation: Phagocytosis, pinocytosis, and exocytosis are all examples of active transport. Active transport is a type of transport that uses energy. During phagocytosis, cells use their membrane to take in large molecules from the external environment.

Detailed explanation-4: -Phagocytosis (literally, “cell eating”) is a form of endocytosis in which large particles, such as cells or cellular debris, are transported into the cell. We’ve already seen one example of phagocytosis, because this is the type of endocytosis used by the macrophage in the article opener to engulf a pathogen.

Detailed explanation-5: -Phagocytosis, pinocytosis, and sodium-potassium pump are examples of active transport while diffusion, facilitated diffusion and osmosis are examples of passive transport.