The correct answer is that "t<span>roponin holds the tropomyosin in place on the actin".
In excitation-contraction coupling, tropomyosin prevents the interaction between actin and myosin in resting muscles. In the event of excitation, there is release of calcium from the sarcoplasmic reticulum wherein the troponin will bind this calcium and will release tropomyosin and expose myosin enabling it to attach to actin and therefore facilitating muscle contraction.</span>
Answer:
underground stem -- for storage of food ex. potato , ginger.
➡️spines for protection ex. citrus , bougainvillea
Explanation:hope this helps
Answer: C. Water and carbon dioxide should both be moved to the products side, and glucose and oxygen should be moved to the reactants side.
Explanation:
