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Test Bank for Marine Biology: Function, Biodiversity, Ecology 2E - page 12 / 44





12 / 44

a. Indistinguishable from inorganic ions

b. Of only one type, found only in mammals and marine reptiles

c. Diverse, but restricted to organically derived compounds

d. Diverse, but restricted to inorganic ions

As oxygen concentration in sea water decreases

a. Oxygen consumption decreases proportionately

b. Oxygen consumption is about the same over a broad range of ambient concentration

c. Metabolic rate tends to increase

d. Body temperature increases

The Bohr effect involves

a. A shift of the blood pigment saturation curve to the right

b. A shift of the blood pigment saturation curve to the left

c. An increase of pH, which degrades hemoglobin

d. An increase of pH, which results in release of oxygen from blood pigments into the blood

At the time of low tide, intertidal animals may

a. Reduce metabolic rate

b. Respire directly from air, if the air is not dry

c. Shift metabolism to anaerobic pathways

d. All of the above

A blood pigment containing copper is

a. Hemerythrin

b. Hemoglobin

c. Hemocyanin

d. Chlorocruorin

Lactate buildup in the blood

a. Decreases the rate of oxygen consumption

b. Increases the affinity of hemocyanin for oxygen

c. Decreases the affinity of hemocyanin for oxygen

d. Tends to degrade hemocyanin molecules

Dissolved oxygen is often very low at the base of the thermocline in the open ocean because

a. Many fish congregate there

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