Question

1. what evidence would support the claim that consuming water after exercise helps an athlete’s body maintain homeostasis?

a study examined the effect of changing the rbc shape and membrane flexibility on its ability to transfer oxygen. for this study, when the rbc membrane was less flexible, the oxygen transfer capacity decreased by 18%. when the rbc was more flexible, the oxygen carrying capacity increased by 21%. when rbcs take on water their membrane initially becomes more flexible.

	number of rbcs taking on water	rbc flexibility	rate of oxygen transfer
(2)	increases	increases	increases
(3)	decreases	increases	increases
(4)	decreases	decreases	decreases

Explanation:

Se basa en los datos del estudio: cuando los glóbulos rojos (RBC) absorben agua, su membrana se vuelve más flexible, lo que aumenta en un 21% su capacidad de transportar oxígeno. Después del ejercicio, el cuerpo necesita restablecer el suministro de oxígeno para la homeostasis; al consumir agua, los RBC absorben este líquido, mejora su flexibilidad y, por lo tanto, su capacidad de transferir oxígeno, ayudando a restablecer el equilibrio fisiológico. La opción que refleja esta relación es la (2).

Answer:

(2) increases, increases, increases