Which of the following is NOT a true statement about the myofilaments responsible for contracting and relaxing muscles? A.
For body movement to happen, myosin and actin must float away from one another to expand the muscle.
B.
Actin are relatively thin strands of protein that attach to one end or the other of the sarcomere.
C.
Myosin are relatively thick strands of protein and are studded with heads resembling knobs.
D.
In a sarcomere, strands of myosin float between strands of actin.

Ithink the answer is d.

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.