Question 1

Assume that the standard allometric equation (M = aWb) applies to a given species. Weight-specific metabolic rate will not depend on weight when

Accepted Answer

A)  b  1. 
C)  b = 1. 
D)  a = 1. 
A)  b  1. 
C)  b = 1. 
D)  a = 1.

Question 2

Refer to the figure.
  Based on the graph, change the scale of both axes and change the y axis units to be non-mass-specific. What is the best description of the line that fits the replotted data?

Accepted Answer

A)  A straight line that begins low on the y axis and increases moving along the x axis 
B)  A straight line that begins high on the y axis and decreases moving along the x axis 
C)  Very similar shape to the plot above with different units on the y axis 
D)  An exponential curve that begins low on the y axis and increases moving along the x axis 
A)  A straight line that begins low on the y axis and increases moving along the x axis 
B)  A straight line that begins high on the y axis and decreases moving along the x axis 
C)  Very similar shape to the plot above with different units on the y axis 
D)  An exponential curve that begins low on the y axis and increases moving along the x axis

Question 3

As part of an exercise program, a person holds a heavy weight above the ground for 10 minutes without moving the weight. Is the person doing work?

Accepted Answer

The person is not doing mechan

Question 4

If an animal's metabolic rate is measured in a respirometer that has a continuous stream of air flowing through it, the type of calorimetry is called _______ and the type of respirometry is called _______.

Accepted Answer

A)  open; direct 
B)  open; indirect 
C)  indirect; open 
D)  direct; open 
A)  open; direct 
B)  open; indirect 
C)  indirect; open 
D)  direct; open

Question 5

For which macromolecule is the conversion factor for heat to amount of oxygen consumed furthest from the conversion factor for heat to amount of carbon dioxide produced?

Accepted Answer

A)  Carbohydrates 
B)  Lipids 
C)  Proteins 
D)  Nucleic Acids 
A)  Carbohydrates 
B)  Lipids 
C)  Proteins 
D)  Nucleic Acids

Question 6

Sprinting is an activity that relies heavily on anaerobic metabolism over short periods of time. From a conceptual perspective, what would be the most accurate way to measure metabolic rate during sprinting?

Accepted Answer

A)  Material balance 
B)  O2 consumption 
C)  Direct calorimetry 
D)  Respiratory exchange ratio 
A)  Material balance 
B)  O2 consumption 
C)  Direct calorimetry 
D)  Respiratory exchange ratio

Question 7

Suppose you use indirect calorimetry to estimate an animal's metabolic rate and you do not know what foodstuff the animal is oxidizing. Is it better to estimate energy use from O2 or CO2? Why?

Accepted Answer

It is better to estimate energy use from

Question 8

You measure the metabolic rate of a group of poikilotherms that has never been studied before. Compared to the relationship between metabolic rate and weight for birds, the value of a for the new group is likely to be _______ and the value of b is likely to be _______.

Accepted Answer

A)  about the same; lower 
B)  lower; higher 
C)  lower; lower 
D)  lower; about the same 
A)  about the same; lower 
B)  lower; higher 
C)  lower; lower 
D)  lower; about the same

Question 9

Rubner's surface "law" cannot be applied to fish and crabs because

Accepted Answer

A)  these animals do not elevate their body temperatures above those of the environment. 
B)  these animals are too small for it to be applicable. 
C)  these animals do not have four limbs. 
D)  it can be applied only to mammals. 
A)  these animals do not elevate their body temperatures above those of the environment. 
B)  these animals are too small for it to be applicable. 
C)  these animals do not have four limbs. 
D)  it can be applied only to mammals.

Question 10

Refer to the figure.
  Where on the graph would you plot a wood frog?

Accepted Answer

A)  About half way down directly below the pygmy mouse data point 
B)  Close to the x axis in the 0- to 100-gram weight range 
C)  Very close to the wood rat data point 
D)  About twice as high as the white-footed mouse data point 
A)  About half way down directly below the pygmy mouse data point 
B)  Close to the x axis in the 0- to 100-gram weight range 
C)  Very close to the wood rat data point 
D)  About twice as high as the white-footed mouse data point

Question 11

Suppose that W (weight) for groups of big and little eaters has been measured in grams. Daily food consumption of big eaters is described by the allometric equation: food (g/day) = 5 W0.67. Daily food consumption of little eaters is described by the allometric equation: food (g/day) = 0.75 W0.67. Each day, a 1-g big eater will need _______ more food than a 1-g little eater.

Accepted Answer

A)  (4.25)-0.33 g 
B)  (4.25)0.67 g 
C)  4.25 g 
D)  no 
A)  (4.25)-0.33 g 
B)  (4.25)0.67 g 
C)  4.25 g 
D)  no

Question 12

Suppose the value of b for the allometric equation for maximal metabolic rate (MMR) and body weight is 0.87. The exponent for the equation relating the mass-specific MMR to body weight would be

Accepted Answer

A)  ‒0.87. 
B)  0.13. 
C)  ‒0.13. 
D)  (0.87)2. 
A)  ‒0.87. 
B)  0.13. 
C)  ‒0.13. 
D)  (0.87)2.

Question 13

The increase in the metabolic rate of an animal that results from eating food is called

Accepted Answer

A)  specific dynamic action. 
B)  aerobic metabolism. 
C)  material balance. 
D)  diet induced thermogenesis. 
A)  specific dynamic action. 
B)  aerobic metabolism. 
C)  material balance. 
D)  diet induced thermogenesis.

Question 14

Attempts to explain the mechanistic basis for the allometric scaling of metabolic rate with size have focused mostly on the

Accepted Answer

A)  skeletal muscles. 
B)  gastrointestinal tract. 
C)  lungs. 
D)  circulatory system. 
A)  skeletal muscles. 
B)  gastrointestinal tract. 
C)  lungs. 
D)  circulatory system.

Question 15

Specific conditions must apply when either basal or standard metabolic rate is being measured. The animals must be

Accepted Answer

A)  measured at standard temperature and pressure. 
B)  fully grown. 
C)  fed a standard diet. 
D)  fasting. 
A)  measured at standard temperature and pressure. 
B)  fully grown. 
C)  fed a standard diet. 
D)  fasting.

Question 16

A person's resting heat production is approximately equivalent to that of a _______ incandescent light bulb.

Accepted Answer

A)  15-W 
B)  50-W 
C)  100-W 
D)  300-W 
A)  15-W 
B)  50-W 
C)  100-W 
D)  300-W

Question 17

Suppose you use direct calorimetry to measure heat production by a person picking s out of a box on the floor and stacking them onto a bookshelf. Is the measure of heat production an accurate indicator of the person's metabolic rate? Why or why not?

Accepted Answer

No. To measure the person's me

Question 18

Animals need _______ to create and maintain internal organization.

Accepted Answer

A)  entropy 
B)  heat 
C)  an open system 
D)  energy 
A)  entropy 
B)  heat 
C)  an open system 
D)  energy

Question 19

In the equation M =aWb, a and b are constants. Why, then, do the values of a and b vary across different groups of animals or even with different samples from a related group of animals?

Accepted Answer

The values of a and b depend o

Question 20

The exponent for the relationship between metabolic rate and weight

Accepted Answer

A)  varies across different animals but is commonly around 0.5. 
B)  varies across different animals but is commonly around 0.7. 
C)  is two-thirds. 
D)  is three-fourths. 
A)  varies across different animals but is commonly around 0.5. 
B)  varies across different animals but is commonly around 0.7. 
C)  is two-thirds. 
D)  is three-fourths.

Exam 7: Energy Metabolism

Assume that the standard allometric equation (M = aWb) applies to a given species. Weight-specific metabolic rate will not depend on weight when

Refer to the figure. Based on the graph, change the scale of both axes and change the y axis units to be non-mass-specific. What is the best description of the line that fits the replotted data?

As part of an exercise program, a person holds a heavy weight above the ground for 10 minutes without moving the weight. Is the person doing work?

If an animal's metabolic rate is measured in a respirometer that has a continuous stream of air flowing through it, the type of calorimetry is called _______ and the type of respirometry is called _______.

For which macromolecule is the conversion factor for heat to amount of oxygen consumed furthest from the conversion factor for heat to amount of carbon dioxide produced?

Sprinting is an activity that relies heavily on anaerobic metabolism over short periods of time. From a conceptual perspective, what would be the most accurate way to measure metabolic rate during sprinting?

Suppose you use indirect calorimetry to estimate an animal's metabolic rate and you do not know what foodstuff the animal is oxidizing. Is it better to estimate energy use from O2 or CO2? Why?

You measure the metabolic rate of a group of poikilotherms that has never been studied before. Compared to the relationship between metabolic rate and weight for birds, the value of a for the new group is likely to be _______ and the value of b is likely to be _______.

Rubner's surface "law" cannot be applied to fish and crabs because

Refer to the figure. Where on the graph would you plot a wood frog?

Suppose the value of b for the allometric equation for maximal metabolic rate (MMR) and body weight is 0.87. The exponent for the equation relating the mass-specific MMR to body weight would be

The increase in the metabolic rate of an animal that results from eating food is called

Attempts to explain the mechanistic basis for the allometric scaling of metabolic rate with size have focused mostly on the

Specific conditions must apply when either basal or standard metabolic rate is being measured. The animals must be

A person's resting heat production is approximately equivalent to that of a _______ incandescent light bulb.

Suppose you use direct calorimetry to measure heat production by a person picking s out of a box on the floor and stacking them onto a bookshelf. Is the measure of heat production an accurate indicator of the person's metabolic rate? Why or why not?

Animals need _______ to create and maintain internal organization.

In the equation M =aWb, a and b are constants. Why, then, do the values of a and b vary across different groups of animals or even with different samples from a related group of animals?

The exponent for the relationship between metabolic rate and weight

Animals and Environments: Function on the Ecological Stage

Molecules and Cells in Animal Physiology

Genomics, Proteomics, and Related Approaches to Physiology

Physiological Development and Epigenetics

Transport of Solutes and Water

Nutrition, Feeding, and Digestion

Aerobic and Anaerobic Forms of Metabolism

The Energetics of Aerobic Activity

Thermal Relations

Food, Energy, and Temperature at Work: The Lives of Mammals in Frigid Places

Neurons

Synapses

Sensory Processes

Nervous System Organization and Biological Clocks

Endocrine and Neuroendocrine Physiology

Reproduction

Integrating Systems at Work: Animal Navigation

Control of Movement

Muscle

Movement and Muscle at Work: Plasticity in Response to Use and Disuse

Introduction to Oxygen and Carbon Dioxide in Physiology

External Respiration: the Physiology of Breathing

Transport of Oxygen and Carbon Dioxide in Body Fluids With an Introduction to Acid- Base Physiology

Circulation

Oxygen, Carbon Dioxide, and Internal Transport at Work: Diving by Marine Mammals

Water and Salt Physiology: Introduction and Mechanisms

Kidneys and Excretion With Notes on Nitrogen Excretion

Water, Salts, and Excretion at Work: Mammals of Deserts and Dry Savannas

Water and Salt Physiology of Animals in Their Environments

Filters

Assume that the standard allometric equation (M = aW^b) applies to a given species.Weight-specific metabolic rate will not depend on weight when

If an animal's metabolic rate is measured in a respirometer that has a continuous stream of air flowing through it, the type of calorimetry is called _ and the type of respirometry is called _.

Suppose you use indirect calorimetry to estimate an animal's metabolic rate and you do not know what foodstuff the animal is oxidizing. Is it better to estimate energy use from O₂ or CO₂? Why?

You measure the metabolic rate of a group of poikilotherms that has never been studied before. Compared to the relationship between metabolic rate and weight for birds, the value of a for the new group is likely to be _ and the value of b is likely to be _.

In the equation M =aW^b, a and b are constants. Why, then, do the values of a and b vary across different groups of animals or even with different samples from a related group of animals?