Lecture 1

Question 1

What does it mean when an animal is isosmotic?

Answer 1

animal has the same osmotic concentration as the external environment

Question 2

What does hyperosmotic mean?

Answer 2

animal blood has a higher osmotic concentration than the external environment

Question 3

What does hyoposmotic mean?

Answer 3

aimal blood has a lower osmotic concentration than the external environment

Question 4

what does osmosis depend upon

Answer 4

gradient, permeability, surface area

Question 5

what does syport mean?

Answer 5

molecules (?) move in the same direction

Question 6

what does antiport mean?

Answer 6

opposite direction

Question 7

what does osmolarity mean?

Answer 7

measure of the amount of solutes in a litre

Question 8

what can urea not be eliminated without?

Answer 8

water

Question 9

What does catabolism mean?

Answer 9

breakdown of larger/more complex molecules

Question 10

What is deanimation

Answer 10

the removal of an amino group from a molecule

Question 11

How do terrestrial invertabrates deal with ammonium

Answer 11

convert into less toxic then eliminate it

Question 12

what does ureotelic mean?

Answer 12

animals that excrete most nigrogen waste products as urea, includes mammals, amphibians

Question 13

What does uricotelic mean?

Answer 13

primary waste product is uric acid, include snails, snakes, birds

Question 14

what is the ornithine cycle?

Answer 14

process of deamination that accors in the liver (for mammals)