Urine concentrations and Water Balance (lesson 3)

Question 1

What much urine is produced daily?

Answer 1

2L

Question 2

What happens if urine stays in the collecting ducts?

Answer 2

The more time urine spends time in the collecting ducts, the more connected it will be (darker in colour)

Question 3

Factors affecting urine production and simple definitions

Answer 3

1) Temperature: Urine decreases

2) Water consumption: Urine increases

3) Exercise: Makes large amount of concentrated urine

4) Protein consumption: The more proteins consumed, the more AA available to body. When AA is broken down, urea will be produced ,increases urine production

5) Salt consumption: More salt consumed, more water needed to remove the salt, increase concentration of urine

Question 4

What is kidney threshold level?

Answer 4

When there is so much excess wates that the kidney doesn’t reabsorb as much, leaving the wastes in your urine.

Question 5

How does the kidney manage homeostasis?

Answer 5

1) Balancing pH of blood: Kidneys reabsord and secrete ions to balance blood ph

2) Balancing water level: When water levels are low, ADH is released to increase absorption of water

3) Managing body salt: When salt levels are low, aldosterone is released to increase absorption of sodium

Question 6

What type of ions make blood acidic?

Answer 6

H+ ions decreases blood pH, making it acidic