Question 1

Refer to the figure.
  What would be the best label for the y axis?

Accepted Answer

A)  Rate of oxygen consumption (ml O2/h) 
B)  Weight-specific metabolic rate (J/g•h) 
C)  Rate of oxygen consumption (ml O2/g•h) 
D)  Weight-specific metabolic rate (J/h) 
A)  Rate of oxygen consumption (ml O2/h) 
B)  Weight-specific metabolic rate (J/g•h) 
C)  Rate of oxygen consumption (ml O2/g•h) 
D)  Weight-specific metabolic rate (J/h) B

Question 2

Which form of energy is totipotent for animals?

Accepted Answer

A)  Electrical energy 
B)  Chemical energy 
C)  Heat (molecular kinetic energy) 
D)  Mechanical energy 
A)  Electrical energy 
B)  Chemical energy 
C)  Heat (molecular kinetic energy) 
D)  Mechanical energy B

Question 3

A semipermanent increase in metabolic rate in response to repeatedly eating unusually large amounts food is called

Accepted Answer

A)  diet-induced thermogenesis. 
B)  the heat increment of feeding. 
C)  fat-stimulated metabolism. 
D)  dietary scaling. 
A)  diet-induced thermogenesis. 
B)  the heat increment of feeding. 
C)  fat-stimulated metabolism. 
D)  dietary scaling. A

Question 4

Which situation best describes the appropriate use of routine metabolic rate (RMR)?

Accepted Answer

A)  a sleeping lion 
B)  a sprinting dog 
C)  a migrating bird 
D)  a swimming fish 
A)  a sleeping lion 
B)  a sprinting dog 
C)  a migrating bird 
D)  a swimming fish

Question 5

Which of the following is an example of an isolated system?

Accepted Answer

A)  An electrically powered pump circulating hot water through an apartment building 
B)  A lone astronaut in the international space station 
C)  An individual bacterium in an animal's gastrointestinal tract 
D)  A hypothetical construct in which neither energy nor matter can pass 
A)  An electrically powered pump circulating hot water through an apartment building 
B)  A lone astronaut in the international space station 
C)  An individual bacterium in an animal's gastrointestinal tract 
D)  A hypothetical construct in which neither energy nor matter can pass

Question 6

Compared to gross growth efficiency, energy absorption efficiency

Accepted Answer

A)  must be lower. 
B)  must be higher. 
C)  can be lower but does not have to be. 
D)  can be higher but does not have to be. 
A)  must be lower. 
B)  must be higher. 
C)  can be lower but does not have to be. 
D)  can be higher but does not have to be.

Question 7

In English, the idiomatic expression "He eats like a horse" suggests that the person eats a lot. The plot of metabolic rate versus body weight for carnivorous mammals depicts the metabolic rate of the least weasel as higher than that of other carnivorous mammals of the same weight. What would the phrase "He eats like a least weasel" mean?

Accepted Answer

The person eats a lot for his

Question 8

The doubly labeled water (DLW) procedure entails injecting animals with water that has labeled hydrogen and labeled oxygen atoms. In a complex way, the DLW method makes it possible to estimate the rate of CO2 production. What kind of calorimetry is this?

Accepted Answer

This is indirect calorimetry b

Question 9

The specific dynamic action (SDA) is measured for an animal that eats 100 g of protein. The measurement is repeated a few days later, after the animal has been fed 300 g of protein. According to the usual model of SDA, how will the magnitude of the second SDA compare with the first SDA measurement?

Accepted Answer

A)  It will be about the same. 
B)  It will be about three times as much. 
C)  It will be more than three times as much. 
D)  It is not possible to estimate without the RQ. 
A)  It will be about the same. 
B)  It will be about three times as much. 
C)  It will be more than three times as much. 
D)  It is not possible to estimate without the RQ.

Question 10

Compared to net growth efficiency, gross growth efficiency

Accepted Answer

A)  must be lower. 
B)  must be higher. 
C)  can be lower but does not have to be. 
D)  can be higher but does not have to be. 
A)  must be lower. 
B)  must be higher. 
C)  can be lower but does not have to be. 
D)  can be higher but does not have to be.

Question 11

Catabolic processes _______ and anabolic processes _______.

Accepted Answer

A)  break down organic molecules to release energy; use energy to build molecules 
B)  use energy to build molecules; break down organic molecules to release energy 
C)  use energy to break down molecules; use energy to build molecules 
D)  use energy to break down all molecules; break down organic molecules 
A)  break down organic molecules to release energy; use energy to build molecules 
B)  use energy to build molecules; break down organic molecules to release energy 
C)  use energy to break down molecules; use energy to build molecules 
D)  use energy to break down all molecules; break down organic molecules

Question 12

What is different between the heat resulting from a fire and the heat produced by animals?

Accepted Answer

A)  There is no difference. 
B)  Heat from animals results from internal work and heat from a fire comes from external work. 
C)  The heat that animals obtain from food is always less than heat obtained from burning food in a fire. 
D)  Energy from fires always produces heat, but energy use by animals does not always generate heat. 
A)  There is no difference. 
B)  Heat from animals results from internal work and heat from a fire comes from external work. 
C)  The heat that animals obtain from food is always less than heat obtained from burning food in a fire. 
D)  Energy from fires always produces heat, but energy use by animals does not always generate heat.

Question 13

In which case would the equation M =aWb not be considered allometric?

Accepted Answer

A)  a = 1 and b  1 
C)  a = 1 and b equals any value 
D)  b = 1 and a equals any value 
A)  a = 1 and b  1 
C)  a = 1 and b equals any value 
D)  b = 1 and a equals any value

Question 14

Suppose that a study reports the allometric equation relating whole-animal metabolic rate to body weight for a new group of organisms. Based on existing data for other groups, which value would you predict for b?

Accepted Answer

A)  0.5 
B)  0.7 
C)  1 
D)  12 
A)  0.5 
B)  0.7 
C)  1 
D)  12

Question 15

During the reenactment of the Peary Arctic expedition, a dog sled was loaded with 630 kg of supplies to carefully meet the needs of the entire trip. What is the consequence of adding 25 kg of extra supplies?

Accepted Answer

A)  No consequence 
B)  It increases the efficiency of the pulling effort. 
C)  It decreases the energy required of the humans to navigate the sled. 
D)  It increases the energetic requirements of the dogs to pull the sled. 
A)  No consequence 
B)  It increases the efficiency of the pulling effort. 
C)  It decreases the energy required of the humans to navigate the sled. 
D)  It increases the energetic requirements of the dogs to pull the sled.

Question 16

Suppose that you compare the amount of food needed by four groups of lizards, each of which has an MR that is expected for its body size. There are 10 lizards weighing 10 g each, 5 lizards weighing 20 g each, 2 lizards weighing 50 g each, and a single 100-g lizard. Assuming equivalent digestions, similar food, and so on, which lizard group requires the most food?

Accepted Answer

A)  The 10-g lizard group 
B)  The 20-g lizard group 
C)  The 100-g lizard 
D)  All lizard groups require the same amount of food. 
A)  The 10-g lizard group 
B)  The 20-g lizard group 
C)  The 100-g lizard 
D)  All lizard groups require the same amount of food.

Question 17

A 30-g vole eats 175 g of forage per week and a 1900-kg rhino eats 650 kg of forage per week. This demonstrates that

Accepted Answer

A)  voles eat more than rhinos. 
B)  the energy needs of the two species are not proportional to body size. 
C)  the rhino has a higher SDA as a percentage of ingested energy. 
D)  the vole has a lower digestive efficiency than a rhino. 
A)  voles eat more than rhinos. 
B)  the energy needs of the two species are not proportional to body size. 
C)  the rhino has a higher SDA as a percentage of ingested energy. 
D)  the vole has a lower digestive efficiency than a rhino.

Question 18

Suppose you are a livestock manager tasked with maintaining or increasing the growth efficiency of animals that normally have low levels of physical activity. What would be the likely result if all animals were put on a regimen of vigorous physical exercise?

Accepted Answer

More energy would be used for

Question 19

Suppose the relationship between resting heart rate (RHR, in beats/min) and body weight (W, in grams) is: RHR = aW‒0.23. What can be deduced from this relationship?

Accepted Answer

A)  There is no systematic relationship between heart rate and weight, but large animals have faster heart rates. 
B)  Heart rate tends to be faster for small animals. 
C)  Heart rate tends to be exponentially slower for animals weighing 23 g, 230 g, 2300 g, and so on. 
D)  Heart rate tends to be faster for larger animals. 
A)  There is no systematic relationship between heart rate and weight, but large animals have faster heart rates. 
B)  Heart rate tends to be faster for small animals. 
C)  Heart rate tends to be exponentially slower for animals weighing 23 g, 230 g, 2300 g, and so on. 
D)  Heart rate tends to be faster for larger animals.

Question 20

Suppose you eat five cookies, each of which contains 100 calories. If the same amount of energy in the cookies was used to heat 50,000 g of water, the temperature of the water would increase by

Accepted Answer

A)  0.1°C. 
B)  1.0°C. 
C)  10°C. 
D)  100°C. 
A)  0.1°C. 
B)  1.0°C. 
C)  10°C. 
D)  100°C.

Exam 7: Energy Metabolism

Refer to the figure. What would be the best label for the y axis?

Which form of energy is totipotent for animals?

A semipermanent increase in metabolic rate in response to repeatedly eating unusually large amounts food is called

Which situation best describes the appropriate use of routine metabolic rate (RMR)?

Which of the following is an example of an isolated system?

Compared to gross growth efficiency, energy absorption efficiency

The doubly labeled water (DLW) procedure entails injecting animals with water that has labeled hydrogen and labeled oxygen atoms. In a complex way, the DLW method makes it possible to estimate the rate of CO2 production. What kind of calorimetry is this?

The specific dynamic action (SDA) is measured for an animal that eats 100 g of protein. The measurement is repeated a few days later, after the animal has been fed 300 g of protein. According to the usual model of SDA, how will the magnitude of the second SDA compare with the first SDA measurement?

Compared to net growth efficiency, gross growth efficiency

Catabolic processes _______ and anabolic processes _______.

What is different between the heat resulting from a fire and the heat produced by animals?

In which case would the equation M =aWb not be considered allometric?

Suppose that a study reports the allometric equation relating whole-animal metabolic rate to body weight for a new group of organisms. Based on existing data for other groups, which value would you predict for b?

During the reenactment of the Peary Arctic expedition, a dog sled was loaded with 630 kg of supplies to carefully meet the needs of the entire trip. What is the consequence of adding 25 kg of extra supplies?

A 30-g vole eats 175 g of forage per week and a 1900-kg rhino eats 650 kg of forage per week. This demonstrates that

Suppose you are a livestock manager tasked with maintaining or increasing the growth efficiency of animals that normally have low levels of physical activity. What would be the likely result if all animals were put on a regimen of vigorous physical exercise?

Suppose the relationship between resting heart rate (RHR, in beats/min) and body weight (W, in grams) is: RHR = aW‒0.23. What can be deduced from this relationship?

Suppose you eat five cookies, each of which contains 100 calories. If the same amount of energy in the cookies was used to heat 50,000 g of water, the temperature of the water would increase by

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

The doubly labeled water (DLW) procedure entails injecting animals with water that has labeled hydrogen and labeled oxygen atoms. In a complex way, the DLW method makes it possible to estimate the rate of CO₂ production. What kind of calorimetry is this?

Catabolic processes _ and anabolic processes _.

In which case would the equation M =aW^b not be considered allometric?

Suppose the relationship between resting heart rate (RHR, in beats/min) and body weight (W, in grams) is: RHR = aW^‒0.23. What can be deduced from this relationship?