QUESTION Which is NOT true about muscle contraction? Sarcomere length decreases. Troponin is bound to the myosin-binding site on actin. Actin and myosin overlap increases. Calcium is present. QUESTION When the myosin head binds ATP, myosin: moves into a high energy state forms a cross-bridge with actin dissociates from actin moves actin
QUESTION For contraction to occur, troponin must bind to: calcium actin myosin sarcomeres
QUESTION The main use of the patch clamp recording technique is to... ....investigate the physical properties of neurons. ....investigate the movement of proteins across the membrane. ...investigate the biophysical properties of ion channels and neurons. ...investigate the pressure inside a neuron.
QUESTION The membrane potential is due to... ...a concentration difference between charged particles (ions) inside versus outside the cell.. ....the charged particles (ions) that are stuck to the inside of the membrane. ....all of the charges proteins inside the neuron. ...the charged particles (ions) that are stuck to the outside of the membrane.
QUESTION The gigaohm seal between the micropipette and the membrane is formed by... ...driving the micropipette quickly onto the membrane. ....applying gentle negative pressure on the micropipette. ....applying gentle positive pressure on the micropipette. ...driving the micropipette slowly onto the membrane.
QUESTION Which is NOT true about muscle contraction? Sarcomere length decreases. Troponin is bound to the myosin-binding
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