Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

uestion3 1 pts Which of the following are true for graded potentials? O The chan

ID: 219924 • Letter: U

Question

uestion3 1 pts Which of the following are true for graded potentials? O The changes in membrane potential are always the same magnitude/level. O They initiate at the axon hillock. O It can be a hyperpolarization or a O They travel down axons (are conducted). O They can be initiated by ligands binding to receptors Question 4 1 pts Which of the following is true about Ca2+ in muscle cell signaling? O It is normally found in high concentration in the sarcoplasmic reticulum It binds to tropomyosin A Ca2+pump helps to maintain the normal or O O resting" Ca2+ gradient. O It is normally found in high concentration in the cytosol O It acts as a second messenger OIt's presence in the cytosol will allow cross- bridge formation.

Explanation / Answer

Question number 3

Answer will be

It can be a hyperpolarization or a depolarization..

Question number 4

Answer will be

It's presence in the cytosol will allow cross bridge formation..