Chapter 9 Quiz

. What is the best method for studying metabolic rate in animals in the wild?

Place the animal on a treadmill.

Inject them with deuterium and oxygen-18 then measure levels after the animal engages in its normal behavior for a period of time.

Place the flying/swimming animal in a wind/water tunnel.

Use a mask and a valve system on the animal.

. Which of the following isotopes is(are) used in the doubly labeled water method?

D₂¹⁶O

H₂¹⁸O

Both D₂¹⁶O and H₂¹⁸O

¹⁴C

. Another term for ADMR is

telemetric device.

time–energy budget.

field metabolic rate.

D₂ method.

. If an animal spends 4 hours a day chasing prey and 20 hours a day resting, its total daily cost of behavior in kilojoules is

5 KJ/day.

16 KJ/day.

24 KJ/day.

Insufficient data is provided to calculate the daily cost of behavior.

. An animal that spends 3 hours a day running from predators and 20 hours a day resting (using 20 KJ/hour) has a total daily cost of behavior of 700 KJ. The total energy spent running from predators is

100 KJ/day.

200 KJ/day.

300 KJ/day.

400 KJ/day.

. Which animal would display a J-shaped curve for its rate of oxygen consumption relative to its speed?

Kangaroo

Sockeye salmon

Ground squirrel

Bird

. An animal that weighs _______ will have the highest weight-specific metabolic rate.

65 g

70 g

65 kg

80 kg

. Which type of migration is most favored by natural selection?

Long-distance migration

Short-distance migration

Long-distance migration, but only if the cost of covering distance is relatively low

Short-distance migration, but only if the cost of covering distance is relatively low

. Which animal has the most expensive mode of locomotion?

Cheetah

Bird

Dolphin

Eagle

. Cost of transport is the

energy cost for a unit of time.

energy cost of covering a unit of distance.

amount of fat required to a traverse a unit of distance.

speed required to travel a unit of distance.

. Which of the following is the most energetically expensive way to cover distance?

Running

Swimming

Flying

Both running and swimming

. In vertebrates,

\dot{V}

_O_2max is about _______ than resting O₂ consumption.

5 times lower

2 times higher

5 times higher

10 times higher

. An organism with a resting oxygen consumption of 1 mL/g•hr and an aerobic scope for activity of 10 mL/g•hr will have a

\dot{V}

_O_2max of _______ mL/g•hr.

0.1

0.11

9

11

. The conventional unit of measure for

\dot{V}

_O_2maxin humans is

mL O₂/kg•min.

mL O₂/lbs•min.

mL O₂/kg•hr.

mL O₂/lbs•hr.

. Which of the following does not occur in endurance training to maximize

\dot{V}

_O2max

Increase in number of mitochondria

Increase in density of blood capillaries

Increase in small intestine glucose transporters

Increase in mitochondrial enzymes

. Which enzyme increases during endurance training?

Hexokinase

Phosphofructokinase

Pyruvate kinase

Citrate synthase

. When training a group of athletes to increase their endurance, which change would occur after 3 months of training?

\dot{V}

_O2max would not change.

\dot{V}

_O2max would increase.

Blood testosterone level would increase.

Blood testosterone level would decrease.

. In the general population of 20–50-year-old humans, ADMR tends to vary from _______ to _______ times the BMR.

1; 2

2; 4

1.2; 2.5

2.5; 3.5

. Which change occurs when migratory birds reduce their organ function?

Glucose synthesis from amino acids increases.

Protein anabolism increases.

Amino acid usage as a source of energy decreases.

Usage of fatty acids as a source of energy in the brain increases.

. Which molecule is used as the principle fuel in migratory birds?

Proteins

Lipids

Carbohydrates

Nucleic acids

Chapter 9 Quiz

Quiz Content