Function of the kidneys

Question 1

homeostasis

Answer 1

keeping internal conditions constant

Question 2

where is urea produced

Answer 2

liver

Question 3

how is urea produced

Answer 3

waste product, breakdown of amino acids

Question 4

how is urea remove 4 stages

Answer 4

artery contains urea
kidney removes urea from bloodstream
bladder stores urine
vein blood contains no urea

Question 5

what is ultrafiltration?

Answer 5

high pressure, squeezes out urea, ions, sugar out of the blood into the Bowman’s capsule

Question 6

ultrafiltration, what do membranes between blood vessels and Bowman’s capsule do?

Answer 6

act as filters, big molecules such as proteins and blood cells are not filtered out and stay in the blood

Question 7

reabsorption

Answer 7

useful substances are reabsorbed

Question 8

reabsorption- what is reabsorbed?

Answer 8

all glucose is reabsorbed by active transport

Question 9

reabsorption- what else is reabsorbed?

Answer 9

sufficient ions by active transport

Question 10

reabsorption, is what reabsorbed?

Answer 10

yes, sufficient water is reabsorbed

Question 11

what happens to urine // release of wastes?

Answer 11

remaining substances including urea continue out of nephron to the ureter and down to bladder as urine