Question

muscle cells in athletes often have more mitochondria than muscle cells in non - athletes. what can be inferred from this observation? a. muscle cells in athletes have a smaller supply of cell proteins than muscle cells of nonathletes. b. muscle cells in athletes reproduce less frequently than muscle cells of nonathletes. c. muscle cells in athletes have nuclei containing more dna than nuclei in muscle cells of nonathletes. d. muscle cells in athletes have a greater demand for energy than muscle cells of nonathletes.

Explanation:

Mitochondria are the power - houses of the cell, responsible for producing energy in the form of ATP. Athletes' muscle cells having more mitochondria implies they need more energy for their physical activities compared to non - athletes' muscle cells. Options A, B, and C have no relation to the number of mitochondria.

Answer:

D. Muscle cells in athletes have a greater demand for energy than muscle cells of nonathletes