The contractile unit consisting of bundles of thick filaments interleaved at either end with those of thin filaments is?
(a) Myofibril
(b) Cross bridges
(c) Z band
(d) Sarcomere
I had been asked this question by my college professor while I was bunking the class.
My question is based upon Protein Interactions Modulated by Chemical Energy: Actin, Myosin and Molecular Motors topic in portion Three Dimensional Structure Of Proteins and Protein Function of Biochemistry