Excretion

Question 1

What is vasoconstriction?

Answer 1

Blood vessels in the skin get smaller

Question 2

What are ectotherms?

Answer 2

Gain or lose heat from or to their external environment

Question 3

What are endotherms?

Answer 3

Generate their own heat from metabolic reactions

Question 4

What is vasodilation?

Answer 4

Blood vessel expand

Question 5

What is the function of the skin?

Answer 5

Protection
Vit production
Food store
Sense organ
Excretion
Temp reg

Question 6

What layer is melanin found in?

Answer 6

Malpighian

Question 7

What is the function of the dermis?

Answer 7

Protect internal organs from bumps and bangs

Question 8

What is sebum for?

Answer 8

Prevent hair and skin drying out

Question 9

What is the function of the epidermis?

Answer 9

Barrier to prevent water loss and entry of pathogens

Question 10

What is the function of melanin?

Answer 10

Protect skin from UV radiation

Question 11

What is piloerection?

Answer 11

Hairs stand up on skin

Question 12

What is filtration?

Answer 12

Movement of small molecules and water from the blood plasma into the nephron

Question 13

What is reabsorption?

Answer 13

Movement of small molecules from the nephron into the blood

Question 14

What Is the function of the cortex?

Answer 14

Filtration

Question 15

What is the function if the medulla?

Answer 15

Reabsorption

Question 16

How is the glomerulus adapted to do its job?

Answer 16

1) Blood pressure is higher than average bp
2) Surface are is large- more area for filtration
3) Capillaries are move porous than normal capillaries

Question 17

What is the function of the proximal convoluted tubule?

Answer 17

Absorb the most water and small molecules

Question 18

How is the proximal convoluted tubule adapted to do its job?

Answer 18

1) Long
2) Thin
3) High concentration of mitochondria- ATP for active transport

Question 19

What is the function of the distal convoluted tubule?

Answer 19

Control salt and pH value of blood

Question 20

What is the function of the descending loop of Henle?

Answer 20

Reabsorb water

Question 21

What is the function of the ascending loop of Henle?

Answer 21

1) reabsorb salt via diffusion
2) reabsorb salt via active transport (higher up)
3) reabsorb water

Question 22

What is homeostasis?

Answer 22

The ability of an organism to maintain a constant internal environment

Question 23

What is the function of the kidneys?

Answer 23

1) Excretion
2) Osmoregulation
3) pH control

Question 24

What is filtration?

Answer 24

Movement of small molecules and water from the blood plasma into the nephron

Question 25

What is reabsorption?

Answer 25

Movement of small molecules from the nephron into the blood

Question 26

What Is the function of the cortex?

Answer 26

Filtration

Question 27

What is the function if the medulla?

Answer 27

Reabsorption

Question 28

How is the glomerulus adapted to do its job?

Answer 28

1) Blood pressure is higher than average bp 2) Surface are is large- more area for filtration 3) Capillaries are move porous than normal capillaries

Question 29

What is the function of the proximal convoluted tubule?

Answer 29

Absorb the most water and small molecules

Question 30

How is the proximal convoluted tubule adapted to do its job?

Answer 30

1) Long 2) Thin 3) High concentration of mitochondria- ATP for active transport

Question 31

What is the function of the distal convoluted tubule?

Answer 31

Control salt and pH value of blood

Question 32

What is the function of the descending loop of Henle?

Answer 32

Reabsorb water

Question 33

What is the function of the ascending loop of Henle?

Answer 33

1) reabsorb salt via diffusion 2) reabsorb salt via active transport (higher up) 3) reabsorb water

Question 34

What is homeostasis?

Answer 34

The ability of an organism to maintain a constant internal environment

Question 35

What is the function of the kidneys?

Answer 35

1) Excretion 2) Osmoregulation 3) pH control