In muscle function at the sarcomere level, the binding of ___ ions to ____ regulates the formation of cross-bridges.

A. calcium, troponin
B. calcium, tropomyosin
C. calcium, myosin
D. sodium, troponin
E. sodium, tropomyosin


A. calcium, troponin

Biology & Microbiology

You might also like to view...

Which of the following would occupy the lumen of a transverse tubule?

A. extracellular fluid B. cytoplasm C. actin D. myosin E. sarcomeres

Biology & Microbiology

Consider the ADH reaction below, and answer the following question. ADH stands for alcohol dehydrogenase

In this reaction, ADH represents the ____.

a. enzyme b. reactant c. product d. activation energy e. trigger

Biology & Microbiology

All of the following are found in DNA EXCEPT

A) a phospholipid group. B) deoxyribose. C) a phosphate group. D) guanine. E) thymine.

Biology & Microbiology

The lowest temperature that kills all cells in a broth in 10 minutes is known as the (microbial/terminal/thermal) death point

What will be an ideal response?

Biology & Microbiology