Question

what is the role of atp in muscle contraction? it provides the energy needed for muscle fibers to contract it stores oxygen for muscle cells it transports nutrients to muscle cells it builds muscle proteins question 8 (1.7 points) the most relevant free energy in human physiology is the energy electrolytes ionized in water free radicals with an odd number of electrons radioisotopes the chemical bonds of organic molecules van der waals forces

Explanation:

ATP (adenosine - triphosphate) is the energy - currency of the cell. In muscle contraction, the hydrolysis of ATP provides the energy required for the myosin heads to bind to actin filaments and undergo a power stroke, leading to muscle fiber contraction. For the second question, free radicals are unstable molecules with unpaired electrons and can be involved in various physiological and pathological processes related to free energy in human physiology.

Answer:

1. It provides the energy needed for muscle fibers to contract
2. free radicals with an odd number of electrons