The direction of concentration gradient for oxygen is from

The direction of concentration gradient for CO_(2) is from

....... may move across the membrane by the process of simple diffusion along the concentration gradient , from higher concentration to lower concentration.

In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed, would drive

In the resting state of the neutral membrane, diffusion due to concentration gradients, if allowed would drive.

In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed, would drive

The counter current mechanism helps to maintain a concentration gradient. This gradient helps in -