Question

compare the structure and functioning of the alveoli in lungs and nephrons in kidneys with respect to it's structure and functioning

Answer 1

Alveoli in lungs are grape shaped structures at the end of terminal broncholes for exchange of air. They are lined with simple squamous epithelium and have a network of capillaries for exchange of carbon dioxide and oxygen. They have lecithin as surfactant for preventing the collapse of Alveoli and are also kept moist with mucus.
Nephron are the structural and functional unit of the urinary system. It has glomerulus, Bowman's capsule, proximal convoluted tubule, Henle's loop, distal convoluted tubule which finally joins the collecting duct.

Answer 2

ALVEOLI IN LUNGS :-

1. Alveoli are balloon like structures.

2. It is made up of one celled thick wall which contains extensive network of blood capillaries.

3. Alveoli are the site of gaseous exchange in lungs. Exchange of oxygen and carbon dioxide takes place between the blood flowing in capillaries which surround the alveoli and gases present in the alveoli.

NEPHRONS IN KIDNEY:-

1. Nephron are long tubular structures.

2. It is made up of glomerulus , Bowman's capsule and a long renal tube.

3. Nephron are the basic filteration unit of kidney. Each nephron filters the blood and separates the nitorgenous waste in the form of urine.