The Kidney

Question 1

Tubular secretion

Answer 1

Removes additional wastes from the blood and adds them to the filtrate

Question 2

Water conservation

Answer 2

Removes water from the urine and returns it to the blood. Concentrates wastes

Question 3

Tubular reabsorption

Answer 3

Removes useful solutes from the filtrate, returns them to the blood

Question 4

Kidney functions

Answer 4

Regulate body fluid and osmolality. 
Electrolyte balance. 
Acid base balance. 
Production of hormones and enzymes. 
Formation of urine and resulting excretion of metabolic waste products and toxins.

Question 5

Glomerular filtration

Answer 5

Creates plasma like filtrate of the blood