nect mheducationcomflowconnect htmrisReg truereturnUrl https

nect mheducation.com/flow/connect htmrisReg true&returnUrl; https%3A%2F%Fconnect mheduc cture saved oxygen diffuses into the capillaries of the lungs because there is Multiple Choice a higher concentration of O2 in the alveoli than the capillaries. a higher concentration of O2 in the capillaries than the alveoli. a higher concentration of CO2 in the alveoli than the capillaries. a higher concentration of CO2 in capillaries than the alveoli Prev 17 of 25

Solution

Oxygen diffuses in to the capillaries of blood because there is a higher concentration of oxygen in alveoli than capillaries.Diffusion takes place only when there is a concentration difference.

Diffusion is the movement of substances from a higher conc: to lower conc:.So there should be a concentration difference then only the diffusion takes place.

Permeability is the extent a membrane allows a substance to pass through and it varies for different membranes.

Carrier protein provides a channel for the substances to move across the membrane.