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Which of the following is true of the cardiac action potential? - The cardiac action potential is longer than the skeletal muscle action potential. Which of the following is true of the cardiac action potential? - The cardiac action potential is longer than the skeletal muscle action potential. ...

Briefly describe the need for controls and give an example used in this activity. - controls are needed to validate the results of the experiment. tube 5 is an example where the enzyme that tests for contaminating glucose in the starch is absent What effect did boiling and freezing have on enzyme...

What is the smallest subunit into which starch can be broken down? - Glucose (monosaccharide). During digestion, the chief cells of the stomach secrete _____________ , which is responsible for the digestion of protein. - pepsin Circle the correct underlined term: The liver / stomach produces pep...

The neurotransmitter released into the synaptic gap reaches the target cell by - diffusion You have just observed that each action potential in a burst can trigger additional neurotransmitter release. If calcium ions are removed from the extracellular solution, what will happen to neurotransmitte...

What was the effect of adding Na+- K+ pumps to the simulated cell - Transport of the ions was faster The movement of sodium and potassium maintained by the Na+ - K+ pump requires ____________ and is ________ concentration gradient - ATP, against Sodium-potassium pump moves _______ sodium ions an...

Assuming the resting potential of a sensory neuron is -70mV, which of the following represents a depolarization? - change to -60mV What is the approximate concentration of K+ inside a typical cell? - 150mM What is the approximate concentration of Na+ inside a cell? - 5mM What is the approximate ...

What is the key variable in an isometric contraction of a skeletal muscle? - The length-tension relationship. Based on the unique arrangement of myosin and actin in skeletal muscle sarcomeres, explain why active force varies with changes in the muscle's resting length. - When the skeletal muscle...

what is the driving force for blood flow? - pressure gradient how does the body increase the blood vessel radius? - smooth muscle relaxation what is blood measured in? - ml/min what has the greatest effect on blood flow? - blood vessel radius the diameter of the blood vessel is the same as - two...

As in the interval between stimuli decreases, the depolarization needed to generate the second action potential a. increases b. stays the same c. decreases d. There is never a second action potential - a. increases What is the approximate concentration of K+ inside a typical cell (intracellula...