homeostasis lab

Question 1

Insulin:

Answer 1

lowers blood glucose levels

Question 2

Glucagon

Answer 2

Increases blood glucose

Question 3

When CO2 exits blood at the alveoli, how does the ph of the blood change?

Answer 3

the PH goes up and is less acidic, more like a base

Question 4

What hormone causes the liver to store glucose as glycogen?

Answer 4

Insulin

Question 5

Functional unit of kidney:

Answer 5

nephron

Question 6

Nephron tubules work to produce:

Answer 6

urine

Question 7

What does the renal medulla contain?

Answer 7

renal pyramids consisting of the loops of nephrons and collecting ducts

Question 8

What is the renal pelvis function?

Answer 8

Receives urine from the collecting ducts

Question 9

What does the renal cortex hold?

Answer 9

most regions of the nephrons.

Question 10

Glomerular Filtration:

Answer 10

waters, salts and nutrient molecules and waste molecules move from the glomerulus to the inside of the glomerulus capsule. These small molecules are called glomerular filtrate.

Question 11

Tubular reabsorption:

Answer 11

Nutrient and salt molecules are actively reabsorbed from the convoluted tubules into the peritubular capillary network, and water flows passively.

Question 12

Tubular Secretion:

Answer 12

Certain molecules such as H+ and penicillin are secreted from peritubular capillary network into convoluted tubes.

Question 13

nephron pathway:

Answer 13

afferent arteriole to glomerulus to proximal convoluted tube to loop of nephron to peritubular capillary to distal convoluted tubule to collecting duct

Question 14

Cells and proteins will not be in filtrate because they are too:

Answer 14

big

Question 15

Kidneys can help maintain homeostasis by:

Answer 15

helping to maintain blood volume and blood pressure.

Question 16

Water and salts are reabsorbed in the peritubular capillary to:

Answer 16

maintain blood volume and blood pressure.

Question 17

Urea formula:

Answer 17

NH2-C-NH2

Question 18

Which organ makes urea?

Answer 18

Liver

Question 19

What do kidneys produce?

Answer 19

urine

Question 20

The presence of NH4+ in urine illustrates which of the kidneys functions?

Answer 20

excreting H+ ions helps regulate pH.

Question 21

Glucose in urine means that person has:

Answer 21

diabetes

Question 22

Blood in urine means that person has:

Answer 22

infection

Question 23

__ is released by liver. ___ is stored in liver:

Answer 23

Glucose is released and glycogen is stored.

Question 24

Path for blood glucose:

Answer 24

Intestinal arteriers to digestive tracts to hepatic portal vein to liver to hepatic vein to inferior vena cava to heart.

Question 25

Which blood vessel contains the most glucose before your next meal?

Answer 25

hepatic vein

Question 26

the liver produces___ which is excreted by the ___.

Answer 26

Urea; kidney

Question 27

When molecules leave the glomerulus, they enter what portion of the nephron?

Answer 27

Bowmans Capsule

Question 28

Name a substance in the glomerular filtrate but not in urine:

Answer 28

glucose

Question 29

Name the process by which molecules move from the proximal convoluted tubule into the blood:

Answer 29

Tubular reabsprotion

Question 30

H+ is excreted in combination with what molecule?

Answer 30

Ammonia

Question 31

When we exhale, the diaphragm relaxes and moves in which direction?

Answer 31

upward

Question 32

What blood vessel lies between the intestines and liver?

Answer 32

hepatic portal vein

Question 33

The liver removes the amino group from amino acids to form what molecule?

Answer 33

urea