Question

Give the difference between
A) Osmosis and diffusion
B)Pulmonary artery and Pulmonary vein
Of class 7

Answer 1

Osmosis and Diffusion=

In diffusion, particles move from an area of higher concentration to one of lower concentration until equilibrium is reached. In osmosis, a semipermeable membrane is present, so only the solvent molecules are free to move to equalize concentration.

Pulmonary artery and Pulmonary vein=

The pulmonary veins transport oxygenated blood back to the heart from the lungs, while the pulmonary arteries move deoxygenated blood from the heart to the lungs.