Which of the following is correct? Choose the best answer.  …

Which of the following is correct? Choose the best answer.  A) Red muscle fibers have large number of mitochondria and enzymes, are fast to contract, and can sustain contraction. B) Fast fatigue-resistant (FR) fibers are white fibers with moderate strength and fast contractions. C) Fast fatigable (FF) fibers are fastest, strongest white fibers, mostly exist in antigravity muscles of the leg and torso. D) None of above is correct.

LTP and LTD in CA1 of the hippocampus may reflect the bidire…

LTP and LTD in CA1 of the hippocampus may reflect the bidirectional regulation of which two processes? Choose the correct option. A) Phosphorylation and the number of GABA receptors B) Phosphorylation and the number of open sodium channels C) Phosphorylation and the number of postsynaptic AMPA receptors D) Phosphorylation and the number of protein kinases