HOMEOSTASIS (REABSORPTION)

Where does reabsorption of valuable substances occur?

• Distal tubule

• Collecting duct

• Proximal tubule

• Loop of Henle

What is the main substance reabsorbed in the proximal tubule?

• Glucose

• Urea

• Salt

• Water

What is the function of microvilli in the simple epithelial cells lining the tubule?

• Decrease reabsorption

• Increase osmolarity

• Provide energy

• Increase surface area

What is absorbed in the descending limb of the loop of Henle?

• Water only

• Salt only

• Glucose only

• Urea only

What is actively transported in the thick segment of the ascending limb of the loop of Henle?

• Water

• Glucose

• Salt

• Urea

Which substance is reabsorbed from the distal convoluted tubule to the capillary?

• Water

• Urea

• Glucose

• Salt

What contributes to the high osmolarity of the interstitial fluid in the medulla?

• Water only

• Salt only

• Urea only

• NaCl & urea