Runners only have enough stored atp in their muscle cells to run for about five seconds. which answer correctly explains how the runner’s body adjust to the longer distance, for example, a marathon (42.1 km)?
a: the runner's body will convert stored fat molecules into energy.
b: the runner's body will create the needed energy by breaking down proteins.
c: the runner's body will supply the needed energy by producing starch.
d: the runner's body will produce the energy by activating the golgi apparatus.

i think its either a or b

cellular respiration oxidizes food into energy in the form of atps.

glycolysis (6 c hexose) > 2x atps are used > 6c hexose biphosphate > 2 x 3c triphosphate >

2 x 3c pyruvate (2x nadh produced from nad) and (4x atp produced)

pyruvate actively pumped mitochondrial matrix.

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u