Question 1

Fatty acids isolated from the distal limb of a reindeer would consist of

Accepted Answer

A)  unsaturated fatty acids only. 
B)  some saturated fatty acids and some unsaturated fatty acids. 
C)  fatty acids that aggregate to form triglycerides. 
D)  more unsaturated than saturated fatty acids. 
A)  unsaturated fatty acids only. 
B)  some saturated fatty acids and some unsaturated fatty acids. 
C)  fatty acids that aggregate to form triglycerides. 
D)  more unsaturated than saturated fatty acids.

Question 2

Refer to the figure shown.
  What best represents the actual cost savings of hibernation?

Accepted Answer

A)  Line I 
B)  The difference between line I and line II 
C)  Line II 
D)  The difference between line II and line III 
A)  Line I 
B)  The difference between line I and line II 
C)  Line II 
D)  The difference between line II and line III

Question 3

Which of the following is an advantage for small mammals, such as lemmings, in the winter?

Accepted Answer

A)  They can escape the cold by huddling together. 
B)  They can thermoregulate to lower their core temperature when ambient temperatures are -30°C. 
C)  They can escape the cold by living under the snow. 
D)  They can keep warm because they grow a very thick pelage. 
A)  They can escape the cold by huddling together. 
B)  They can thermoregulate to lower their core temperature when ambient temperatures are -30°C. 
C)  They can escape the cold by living under the snow. 
D)  They can keep warm because they grow a very thick pelage.

Question 4

The major role of brown fat is to

Accepted Answer

A)  warm the body by acting as insulation. 
B)  provide an energy source for muscle movement by storing lots of triglycerides. 
C)  warm the body by nonshivering mechanisms. 
D)  provide a source of fat for phospholipid synthesis. 
A)  warm the body by acting as insulation. 
B)  provide an energy source for muscle movement by storing lots of triglycerides. 
C)  warm the body by nonshivering mechanisms. 
D)  provide a source of fat for phospholipid synthesis.

Question 5

If a newborn reindeer's maximum rate of metabolic heat production is 10 watts/kg, its resting metabolic rate is _______ watts/kg.

Accepted Answer

A)  20 
B)  10 
C)  5 
D)  15 
A)  20 
B)  10 
C)  5 
D)  15

Question 6

Refer to the figure shown.
  Which statement is not supported by data shown in the figure?

Accepted Answer

A)  Larger animals save less energy during hibernation. 
B)  Smaller animals have higher nonhibernating metabolic rates. 
C)  There is no mass effect on metabolic rate in hibernating animals. 
D)  The larger the animal, the less likely they are to hibernate. 
A)  Larger animals save less energy during hibernation. 
B)  Smaller animals have higher nonhibernating metabolic rates. 
C)  There is no mass effect on metabolic rate in hibernating animals. 
D)  The larger the animal, the less likely they are to hibernate.

Question 7

Which hormone was used to test for brown-fat function in newborn reindeer?

Accepted Answer

A)  Thyroxine 
B)  Epinephrine 
C)  Cortisol 
D)  Testosterone 
A)  Thyroxine 
B)  Epinephrine 
C)  Cortisol 
D)  Testosterone

Question 8

Which animal is most likely to have the advantage of migration to a warmer region as winter approaches?

Accepted Answer

A)  Adult white footed mouse 
B)  Lemming 
C)  Alpine marmot 
D)  Bighorn sheep 
A)  Adult white footed mouse 
B)  Lemming 
C)  Alpine marmot 
D)  Bighorn sheep

Question 9

One of the negative consequences to reindeer of rain falling in Arctic areas instead of snow is

Accepted Answer

A)  rain is warmer than snow. 
B)  rain is more difficult to migrate through than snow. 
C)  rain freezes on the ground and ices in food plants. 
D)  rain freezes on the ground and compromises migration. 
A)  rain is warmer than snow. 
B)  rain is more difficult to migrate through than snow. 
C)  rain freezes on the ground and ices in food plants. 
D)  rain freezes on the ground and compromises migration.

Question 10

Reindeer have low energy costs in cold environments because of their

Accepted Answer

A)  skin. 
B)  pelage. 
C)  hypodermis. 
D)  antlers. 
A)  skin. 
B)  pelage. 
C)  hypodermis. 
D)  antlers.

Question 11

The fat stored in animals prior to hibernation is in the form of

Accepted Answer

A)  fatty acids. 
B)  glycerol. 
C)  triacylglycerols. 
D)  phospholipids. 
A)  fatty acids. 
B)  glycerol. 
C)  triacylglycerols. 
D)  phospholipids.

Question 12

Refer to the figure shown.
  Which conclusion is best supported by the data in the figure?

Accepted Answer

A)  As temperature increases, testicle size and testosterone level increase. 
B)  Following birth, testicle size and testosterone level increase. 
C)  Following hibernation, both testosterone levels and testicle size increase. 
D)  Longer summer days increase testosterone levels and testicle size. 
A)  As temperature increases, testicle size and testosterone level increase. 
B)  Following birth, testicle size and testosterone level increase. 
C)  Following hibernation, both testosterone levels and testicle size increase. 
D)  Longer summer days increase testosterone levels and testicle size.

Question 13

Oleic acid is _______ and contains _______ double bond(s).

Accepted Answer

A)  monounsaturated; 1 
B)  monounsaturated; 2 
C)  polyunsaturated; 1 
D)  polyunsaturated; 2 
A)  monounsaturated; 1 
B)  monounsaturated; 2 
C)  polyunsaturated; 1 
D)  polyunsaturated; 2

Question 14

Which hypotheses for arousal during hibernation are currently popular?

Accepted Answer

Recent studies of brain function have su

Question 15

Explain the significance of social hibernation.

Accepted Answer

Social hibernation has been shown to inc

Question 16

Which type of fat is important for calcium pump function in heart cells at low temperatures?

Accepted Answer

A)  Saturated fatty acids 
B)  Triglycerides 
C)  Omega-3 fatty acids 
D)  Omega-6 fatty acids 
A)  Saturated fatty acids 
B)  Triglycerides 
C)  Omega-3 fatty acids 
D)  Omega-6 fatty acids

Question 17

Refer to the figure shown.
  What is indicated by the arrow in the figure?

Accepted Answer

A)  End of hibernation 
B)  Birth 
C)  Beginning of hibernation 
D)  Beginning of mating season 
A)  End of hibernation 
B)  Birth 
C)  Beginning of hibernation 
D)  Beginning of mating season

Question 18

Ground squirrels that live in the Arctic Circle cannot burrow deeper than _______ m.

Accepted Answer

A)  0.1 
B)  0.5 
C)  0.8 
D)  1 
A)  0.1 
B)  0.5 
C)  0.8 
D)  1

Question 19

Refer to the figure shown.
  According to the figure, which animal is saving the most energy?

Accepted Answer

A)  Summer-acclimatized reindeer at 10°C 
B)  Summer-acclimatized reindeer at -30°C 
C)  Winter-acclimatized reindeer at 10°C 
D)  Winter-acclimatized reindeer at -30°C 
A)  Summer-acclimatized reindeer at 10°C 
B)  Summer-acclimatized reindeer at -30°C 
C)  Winter-acclimatized reindeer at 10°C 
D)  Winter-acclimatized reindeer at -30°C

Question 20

Based on the relationship of metabolic rate and body weight, an animal that weighs _______ kg as an adult is most likely to hibernate.

Accepted Answer

A)  4 
B)  9 
C)  10 
D)  20 
A)  4 
B)  9 
C)  10 
D)  20

Exam 11: Food, Energy, and Temperature at Work: The Lives of Mammals in Frigid Places

Fatty acids isolated from the distal limb of a reindeer would consist of

Refer to the figure shown. What best represents the actual cost savings of hibernation?

Which of the following is an advantage for small mammals, such as lemmings, in the winter?

The major role of brown fat is to

If a newborn reindeer's maximum rate of metabolic heat production is 10 watts/kg, its resting metabolic rate is _______ watts/kg.

Refer to the figure shown. Which statement is not supported by data shown in the figure?

Which hormone was used to test for brown-fat function in newborn reindeer?

Which animal is most likely to have the advantage of migration to a warmer region as winter approaches?

One of the negative consequences to reindeer of rain falling in Arctic areas instead of snow is

Reindeer have low energy costs in cold environments because of their

The fat stored in animals prior to hibernation is in the form of

Refer to the figure shown. Which conclusion is best supported by the data in the figure?

Oleic acid is _______ and contains _______ double bond(s).

Which hypotheses for arousal during hibernation are currently popular?

Explain the significance of social hibernation.

Which type of fat is important for calcium pump function in heart cells at low temperatures?

Refer to the figure shown. What is indicated by the arrow in the figure?

Ground squirrels that live in the Arctic Circle cannot burrow deeper than _______ m.

Refer to the figure shown. According to the figure, which animal is saving the most energy?

Based on the relationship of metabolic rate and body weight, an animal that weighs _______ kg as an adult is most likely to hibernate.

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

Energy Metabolism

Aerobic and Anaerobic Forms of Metabolism

The Energetics of Aerobic Activity

Thermal Relations

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

Oleic acid is _ and contains _ double bond(s).