Question

1. what are the byproducts of a powerstroke? (select all that apply)

atp
k
adp
na
ca
p

Explanation:

During a power stroke in muscle contraction (a biological process), ATP (adenosine triphosphate) is hydrolyzed. The hydrolysis of ATP gives ADP (adenosine diphosphate) and inorganic phosphate ($P_i$). These are the by - products of the power stroke. $K$ (potassium), $Na$ (sodium), and $Ca$ (calcium) are ions involved in muscle function (like in the excitation - contraction coupling) but are not by - products of the ATP hydrolysis during the power stroke. ATP is the reactant, not a by - product in the context of the power - stroke reaction (ATP $\to$ ADP + $P_i$).

Answer:

ADP, P