Nephron

Question 1

1st step

Answer 1

Filtration

Question 2

what structure of the nephron is involved in Pressure Filtration

Answer 2

Bowman’s Capsule

Question 3

what are the molecules in the filtrate? (Pressure Filtration)

Answer 3

water, glucose, amino acids (not proteins), salts (K, NaCl) urea, uric acid, creatine.

Question 4

2nd step

Answer 4

Reabsorption - valuable are reclaimed from the filtrate and returned to the blood

Question 5

what structure of the nephron is involved in Reabsorption

Answer 5

proximal convoluted tubule

Question 6

components reabsorbed into the blood

Answer 6

water, glucose (all reabsorbed), amino acids (all reabsorbed), salts (K, NaCl), bicarbonate (HCO3)

Question 7

components from the blood into filtrate

Answer 7

Hydrogen ions (H), Ammonia

Question 8

3rd step

Answer 8

Secretion - molecules for excretion are removed from the blood and added to the filtrate. When there is an excess of K + or H + in the blood these ions are also added to the filtrate. In removing excess H + from the blood secretion keeps the blood from becoming more acidic (regulates pH).

Question 9

what structure of the nephron is involved in Secretion

Answer 9

distal convoluted tube

Question 10

components removed from the blood and added to the filtrate in Secretion

Answer 10

water, uric acid creatinine, ammonia, salts (NaCl), bicarbonate (HCO3)