What is a protein that is the main component of the thick filaments in muscle fibers and is responsible for muscle contraction?

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

Why were the results whit just water so much different than the trials with the detergent ?