Physiology of fishes exam one quizzes

To calculate a fish’ aerobic scope, you have to find the difference between their SMR and MMR.

• TRUE

• FALSE

Tags

NGSS.HS-LS1-7

fatty acids yield the most ATP on an energy per gram basis through beta-oxidation and the citric acid cycle.

• True

• False

Answer explanation

Triglycerides (stored fats) provide lots of energy.

Acetyl CoA can be produced from fatty acids, which enters citric acid cycle.

By removing amino group, most amino acids can become keto acids, which plug into the citric acid cycle.

Glycolysis is the process of transforming glucose into ___ and produces ___ ATP.

Tags

NGSS.HS-LS1-6

Changes to a fish’s metabolism resulting from digestion are called:

Answer explanation

Digestion is a complex action that requires a lot of energy. Energy and oxygen consumption spike during digestion and return to normal rates afterward.

Tags

NGSS.MS-LS1-7

Tidal ventilation is the most effective form of gas exchange in vertebrates.

• False

• True

Answer explanation

countercurrent exchange and cross current flows are more effective forms of gas exchange.

is the oxygen partial pressure at which a fish can not get enough oxygen To “power” its bodily functions.

when fish are under normal oxygen conditions, they “conform” their oxygen consumption to the amount of oxygen available to them in the environment.

• True

• False

Answer explanation

fish regulate their oxygen consumption within a controlled range in normal oxygen conditions.

Tags

NGSS.HS-LS1-3

Draw a fish metabolism figure including SMR, MMR, pcrit, and aerobic scope.

Tags

NGSS.HS-LS2-5

In fishes, the heart pumps blood through two ___ beds in one cycle: The ___ and the ___. Separate answers with a comma.

in fish hearts the ___ of the spongy myocardium ___ the surface area for the diffusion of ___.