BIOS 251 WEEK 2 EXAM QUESTIONS AND CORRECT ANSWERS 100% GUARANTEED SUCCESS

BIOS 251 WEEK 2 EXAM QUESTIONS AND CORRECT ANSWERS 100% GUARANTEED SUCCESS Active protein transporters which move substances from lower concentration into higher concentration are known as channels ligands transponders pumps - Answers pumps Primary active transport involves one substance moving down its concentration gradient to move another substance against its electrochemical gradient. True False - Answers False A protein transporter which moves two substances by secondary active transport in the same direction is known as a symporter transponder antiporter inductor - Answers symporter Endocytosis is the inward movement of a large particle into the cell by means of vesicular transport. True False - Answers True The transport of amino acids into the cell results when sodium ions move down their electrical gradient and cause amino acids to move into the cell against their electrochemical gradient. This is an example of vesicular transport secondary active transport simple diffusion primary active transport - Answers secondary active transport The process by which a cell produces extensions to engulf a particle or unwanted cell so it is taken into the attacking cell is known as pinocytosis primary active transport phagocytosis secondary active transport - Answers phagocytosis When a pouch forms in the cell membrane to enclose extracellular fluid in a vesicle in order to transport that fluid into the cell, the process is known as exocytosis. True False - Answers False The movement of one substance into the cell by vesicular transport at the same rate another substance is moved out of the cell also by vesicular transport, the process is known as vesicular reflex intracellular balance transcytosis maintenance of membrane integrity - Answers trancytosis In order to move calcium ions through the cell membrane, it is necessary to use the energy in ATP. From what you know about active membrane transport, which type of transport is involved? secondary active transport vesicular transport transcytosis primary active transport - Answers primary active transport Most cells which secrete substances into the extracellular fluid will release them by the process of exocytosis. True False - Answers True Both charged, polar, and uncharged, non-polar, substances can pass uninhibited through the cell membrane from higher concentration to lower concentration. True False - Answers False The difference between the concentration of a substance or distribution of electrical charges on opposite sides of the cell membrane are referred to as biochemical differential membrane status electrochemical gradient transport inductance - Answers electrochemical gradient Unassisted movement of a substance through a membrane due to concentration gradient is known as simple diffusion transcytosis carrier mediated diffusion osmosis - Answers simple diffusion