BIO 256 EXAM 1LATEST UPGRADED

BIO 256 EXAM 1LATEST UPGRADED Which of the following would not be a necessary life function? - ANSDecay The purpose of negative feedback is - ANS-to prevent sudden and severe changes within the body. Which would be a normal measure of sodium in venous blood? - ANS135 - 145 mEq/L Which would be a normal measure of oxygen in arterial blood? - ANS17.2 - 27.0 ml/100mL When an organ regulates its activity by mechanisms entirely within the organ itself, this is called - ANS-intrinsic regulation Any water not contained within the cells is said to be part of the body's _____ compartment. - ANS-extracellular When the body is under stress, including during heavy exercise, blood must continue to flow to vital organs. The two most vital organs are the - ANS-brain and heart Which is a less common element of the human body? - ANS-calcium Which is an inorganic molecule? - ANS-oxygen Water absorbs and releases large amounts of heat before changing temperature. This is important in - ANS-maintenance of body temperature. A salt such as NaCl becomes forms ______ when dissolved in water. - ANS-electrolytes Which releases H+ in water? - ANS-acids If solution A has 100 times the hydrogen ions as solution B and solution B has a pH of 6.0, then solution A will have a pH equal to - ANS-4.0 If you add a small amount of vinegar (a weak acid) to a buffer, the buffer's pH will - ANS-stay the same When molecules have the same chemical formula, arranged in the same sequence, but differing only in their spatial orientation of key