Question 6 Which curve represents the interaction between two nitrogen atoms?
Select one:
a. Curve A
b. Curve B
c. Curve C
d. It depends; more information needed

Question 7
Which atom pair forms the strongest bond?
Select one:
a. Cl-F
b. C-I
c. N-N
d. It depends; more information needed

Question 8
Which atom pair forms a bond with the greatest internuclear distance?
a. Cl-F
b. C-I
c. N-N
d. Can't tell; more information needed

Question9
T/F: Breaking the bond formed by atom pair C releases energy.
Select one:
a. True
b. False

Choose the incorrect statement (a) the motor end plate membrane is only capable of generating graded potentials, but it is contiguous with the skeletal muscle sarcolemma, which can generate action potentials. (b) propagation of an action potential through the t-tubules into the sarcoplasmic reticulum triggers the release of ca++ into the cytoplasm of a skeletal muscle fiber. (c) the generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron. (d) a greater amount of ach would be found in the presynaptic vesicles of a motor unit that fired several action potentials after exposure to botulinum toxin, than in a motor unit that fired several action potentials after exposure to the venom of the krait snake (which contains α-bungarotoxin).