Chapter 31 - Excretion Flashcards
1
Q
ectotherms
A
gain or lose heat from or to their external environment
2
Q
endotherms
A
generate their own heat from metabolic reactions
3
Q
filtration
A
water and small molecules pass (under high pressure) from the blood into the nephron
4
Q
reabsorption
A
molecules pass from the nephron back into the blood
5
Q
active transport
A
energy (in the form of ATP) is used to move molecules, often against a concentration gradient, i.e. from low concentrations to high concentrations
6
Q
secretion
A
some substances pass from the blood into the nephron