Las proteínas integrales establecen verdaderos canales a través de la membrana plasmática (es verdadero o falso)

This observation is True

Explanation:

Membrane integral proteins can function as ion channels during the transport of molecules through the membrane. Moreover, integral proteins can also act as pores for the transport of specific molecules between both sides of the membrane, ion channels that mediate effector signals, signaling transduction mechanisms capable of amplifying cellular responses and hormone receptors.

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.