1. (3) Contractile proteins of muscle are mostly _fibrous_ proteins.
(1) When a cell is resting, there’s more _K+_ inside and more _Na+_ outside the cell.
(2) What is the nitrogenous base that is different between DNA and RNA? DNA–T/ RNA–U
(3) Contractile proteins of muscle are mostly _fibrous_ proteins.
(4) T or F: A low blood pH is an indication of respiratory alkalosis.
(5) What is the air exchanged during normal breathing?
Tidal volume
(6) Carbon dioxide causes the blood to become _acidic_.
(7) Name a few substances that will and will not diffuse through the cell membrane.
(8) _Sarcomere_ is the functional unit of a skeletal muscle.
(9) Which phase of deglutition (swallowing) is voluntary? Buccal
(10) When a neuron reacts to a stimulus, the membrane potential changes and is called an _action potential_.
(11) Enteroendocrine__ cells secrete gastric hormones.
(12) Aldosterone aids in sodium reabsorption, which conserves _water_.
(13) The fluid only found inside cells is called _intracellular__.
(14) Your sour tastes are initiated by an influx of _H+ ions_.
(15) A decrease in airway resistance is a result of (dilated/contracted) airways.
(16) Negative feedback mechanisms work to prevent _sudden severe changes in the body_.
(17) The rate limiting step of neural transmission is _the synapse_.
(18) Glucose is a __monomer__ of glycogen.
(19) What is the movement of nutrients from the GI tract to the blood or lymph? Absorption
(20) When blood glucose levels rise, _insulin_ is released.
(21) In skeletal muscles, __Ca++__ binds to troponin, moving tropomyosin.
(22) Which nervous system inhibits salivation, causing dry mouth? Sympathetic NS
(23) The movement of ions against their concentration gradients is _active_ transport.
(24) What are the cells in your eye that detect dim light? Rods
(25) What begins to denature in the stomach? Protein