lesson 16

Question 1

osmotic balance

Answer 1

-Osmolarity
-Tonicity:
hypertonic
hypotonic
isotonic

intra and extracellular
homeostasis
Na, Cl, Ca, Mg, K

Question 2

osmoregulators control of osmolarity

Answer 2

-aquatic:
salt H20 and fresh H20
-terrestrial
-nitrogenous waste:
ammonia
urea
uric acid

Question 3

osmoregulatory system-insects

Answer 3

-malpighian tubules
-secretion

Question 4

vertebrate kidneys-fiber, secrete, reabsorb

Answer 4

-kidneys
-nephrons
-glomerulus
-bowmans capsule

Question 5

mammalian kidney

Answer 5

-kidney:
filtration
reabsorption
secretion

-ureter
-urinary bladder

Question 6

filtering unit of the kidney

Answer 6

-nephron
-juxtamedullary nephrons
-cortical nephrons
-afferent arteriole
-glomerulus
-bowman’s capsule
-efferent arteriole

Question 7

filtrate production and urine collection

Answer 7

-peritubular capillaries
-vasa recta
-proximal convoluted tubule
-loop of henle
-distal convoluted tubule
-collecting duct

Question 8

reabsorption, secretion, excretion

Answer 8

-reabsorption
H2O
Glucose, salt and other nutrients

-secretion:
nitrogenous waste, K, H

-excretion
Homeostasis

Question 9

loop of henle-reabsorption of NaCl and H20

Answer 9

descending limb: water exits passively
ascending limb: salt exits actively

Question 10

concentrating the urine

Answer 10

loop of henle creates gradient
distal tubule and collecting duct concentrate urine using gradient

Question 11

hormonal control and osmoregulation

Answer 11

antidiuretic hormone