Question 1

Compare and contrast nonshivering thermogenesis in marlins with nonshivering thermogenesis in bats.

Accepted Answer

Both marlins and bats use cellular respi

Question 2

Explain how vasodilation cools the body.

Accepted Answer

Body heat is lost through the surface of

Question 3

One way to generate heat is through

Accepted Answer

A)  vasoconstriction. 
B)  vasodilation. 
C)  shivering. 
D)  sleeping. 
E)  All of the above. 
A)  vasoconstriction. 
B)  vasodilation. 
C)  shivering. 
D)  sleeping. 
E)  All of the above.

Question 4

Oxytocin is a hormone that controls many responses and functions in the body,including uterine contractions during labor.The movement of the baby down the uterus and into the cervix activates stretch receptors,which stimulate the hypothalamus to release more oxytocin and increase the frequency of contractions.This is an example of

Accepted Answer

A)  a negative feedback loop. 
B)  acclimatization. 
C)  a positive feedback loop. 
D)  vasoconstriction. 
E)  osmoregulation. 
A)  a negative feedback loop. 
B)  acclimatization. 
C)  a positive feedback loop. 
D)  vasoconstriction. 
E)  osmoregulation.

Question 5

Shivering is involuntary contraction and expansion of skeletal muscle.Can you simulate this voluntarily? Explain.

Accepted Answer

Yes,you can simulate shivering because t

Question 6

In all animals,there is no type of fat tissue that can

Accepted Answer

A)  quickly release glucose into the blood. 
B)  store energy. 
C)  insulate the body. 
D)  produce heat by nonshivering thermogenesis. 
E)  None of the above. 
A)  quickly release glucose into the blood. 
B)  store energy. 
C)  insulate the body. 
D)  produce heat by nonshivering thermogenesis. 
E)  None of the above.

Question 7

Homeostasis is best defined as

Accepted Answer

A)  maintaining constant blood pressure. 
B)  maintaining constant body temperature. 
C)  maintaining constant blood-glucose levels. 
D)  maintaining a constant internal environment. 
E)  maintaining a constant internal environment in spite of a changing external environment. 
A)  maintaining constant blood pressure. 
B)  maintaining constant body temperature. 
C)  maintaining constant blood-glucose levels. 
D)  maintaining a constant internal environment. 
E)  maintaining a constant internal environment in spite of a changing external environment.

Question 8

The ideal temperature for the function of most human enzymes is about

Accepted Answer

A)  98.6°C. 
B)  37°C. 
C)  25°C. 
D)  20°C. 
E)  52.4°C. 
A)  98.6°C. 
B)  37°C. 
C)  25°C. 
D)  20°C. 
E)  52.4°C.

Question 9

Thermoregulation maintains the human body at about

Accepted Answer

A)  98.6°C. 
B)  22°C. 
C)  25°C. 
D)  37°C. 
E)  52.4°C. 
A)  98.6°C. 
B)  22°C. 
C)  25°C. 
D)  37°C. 
E)  52.4°C.

Question 10

You are at the Florida State Fair and free glasses of orange juice are readily available.You're on a tight budget,so you guzzle down four 8-ounce glasses of fresh orange juice.Then,with your remaining money,you round out your "lunch" with one giant-sized cotton candy and a deep-fried candy bar.Describe your body's response to your sugar-laden lunch.

Accepted Answer

Now that you have lots of glucose racing

Question 11

When blood sugar rises after a meal,the pancreas releases insulin.This causes cells to take up excess glucose.When blood sugar falls,glucagon is released from the pancreas.This causes cells to break down glycogen into glucose,which is then released into the blood.Which of the following aspects of this system best explains why it is an example of homeostasis?

Accepted Answer

A)  The release of insulin causes blood sugar levels to fall. 
B)  The release of glucagon causes blood sugar levels to rise. 
C)  The pancreas and liver work together as an organ system. 
D)  The system works to keep blood sugar levels within a narrow range. 
E)  Insulin and glucagon are enzymes that only work within a narrow range of temperatures. 
A)  The release of insulin causes blood sugar levels to fall. 
B)  The release of glucagon causes blood sugar levels to rise. 
C)  The pancreas and liver work together as an organ system. 
D)  The system works to keep blood sugar levels within a narrow range. 
E)  Insulin and glucagon are enzymes that only work within a narrow range of temperatures.

Question 12

Using the concept of sensor and effector,describe the response of the body to a drastic decrease in temperature.

Accepted Answer

Sensors in the hypothalamus will detect

Question 13

A(n)________ in blood pressure is typically followed by a(n)________ in antidiuretic hormone (ADH)release as part of a ________ feedback loop.

Accepted Answer

A)  increase; increase; negative 
B)  decrease; decrease; negative 
C)  increase; decrease; positive 
D)  decrease; increase; positive 
E)  increase; decrease; negative 
A)  increase; increase; negative 
B)  decrease; decrease; negative 
C)  increase; decrease; positive 
D)  decrease; increase; positive 
E)  increase; decrease; negative

Question 14

What is an effector?

Accepted Answer

An effector is a cell or tissu

Question 15

Heat conservation by the body can actually lead to frostbite because

Accepted Answer

A)  shivering in the extremities uses up too much glycogen and energy starved tissues are damaged. 
B)  vasoconstriction reduces blood flow to the extremities and lets them cool down too much. 
C)  vasodilation allows too much heat to be lost from the extremities and they are damaged. 
D)  the body will eventually begin to sweat, which causes more heat loss from the extremities. 
E)  None of the above. 
A)  shivering in the extremities uses up too much glycogen and energy starved tissues are damaged. 
B)  vasoconstriction reduces blood flow to the extremities and lets them cool down too much. 
C)  vasodilation allows too much heat to be lost from the extremities and they are damaged. 
D)  the body will eventually begin to sweat, which causes more heat loss from the extremities. 
E)  None of the above.

Question 16

_____ is the maintenance of a relatively stable internal body temperature.

Accepted Answer

A)  Physiology 
B)  Homeoregulation 
C)  Thermoregulation 
D)  Metabolism 
E)  Homeostasis 
A)  Physiology 
B)  Homeoregulation 
C)  Thermoregulation 
D)  Metabolism 
E)  Homeostasis

Question 17

If the concentration of solvents in the blood is too high,

Accepted Answer

A)  the hypothalamus will release antidiuretic hormone. 
B)  you need to add water to your blood. 
C)  your sense of thirst will increase. 
D)  the kidneys will excrete less water. 
E)  All of the above. 
A)  the hypothalamus will release antidiuretic hormone. 
B)  you need to add water to your blood. 
C)  your sense of thirst will increase. 
D)  the kidneys will excrete less water. 
E)  All of the above.

Question 18

Comparing temperature regulation between giraffes and humans is an example of ______; comparing the parts of an octopus's eye to a human eye would be an example of ______.

Accepted Answer

A)  anatomy; physiology 
B)  physiology; anatomy 
C)  thermoregulation; homeostasis 
D)  homeostasis; physiology 
E)  physiology; homeostasis 
A)  anatomy; physiology 
B)  physiology; anatomy 
C)  thermoregulation; homeostasis 
D)  homeostasis; physiology 
E)  physiology; homeostasis

Question 19

Explain how vasoconstriction conserves body heat.

Accepted Answer

Body heat is lost through the surface of

Question 20

A group of different types of cells working together to perform a common function is a(n)

Accepted Answer

A)  cell. 
B)  tissue. 
C)  organ. 
D)  organ system. 
E)  All of the above. 
A)  cell. 
B)  tissue. 
C)  organ. 
D)  organ system. 
E)  All of the above.

Exam 25: B: Overview of Physiology Man Versus Mountain

Compare and contrast nonshivering thermogenesis in marlins with nonshivering thermogenesis in bats.

Explain how vasodilation cools the body.

One way to generate heat is through

Shivering is involuntary contraction and expansion of skeletal muscle.Can you simulate this voluntarily? Explain.

In all animals,there is no type of fat tissue that can

Homeostasis is best defined as

The ideal temperature for the function of most human enzymes is about

Thermoregulation maintains the human body at about

Using the concept of sensor and effector,describe the response of the body to a drastic decrease in temperature.

A(n)________ in blood pressure is typically followed by a(n)________ in antidiuretic hormone (ADH)release as part of a ________ feedback loop.

What is an effector?

Heat conservation by the body can actually lead to frostbite because

_____ is the maintenance of a relatively stable internal body temperature.

If the concentration of solvents in the blood is too high,

Comparing temperature regulation between giraffes and humans is an example of ______; comparing the parts of an octopus's eye to a human eye would be an example of ______.

Explain how vasoconstriction conserves body heat.

A group of different types of cells working together to perform a common function is a(n)

The Process of Science Java Report

Chemistry and Molecules of Life Mission to Mars

Cell Function and Structure Wonder Drug

Nutrition,metabolism,enzymes the Peanut Butter Project

Energy Flow and Photosynthesis the Future of Fuel

Dietary Energy and Cellular Respiration Supersize Me

DNA Structure and Replication Biologically Unique

Genes to Proteins Medicine From Milk

Cell Division and Mitosis Natures Pharmacy

Mutations and Cancer Fighting Fate

Single-Gene Inheritance and Meiosis Rock for a Cause

Complex Inheritance Qa: Genetics

Stem Cells and Cell Differentiation Grow Your Own

Natural Selection and Adaptation Bugs That Resist Drugs

A: Nonadaptive Evolution and Speciation Urban Evolution

B: Nonadaptive Evolution and Speciation Urban Evolution

Evidence for Evolution a Fish With Fingers

Life on Earth Qa: Evolution

Prokaryotic Diversity Lost City

A: Eukaryotic Diversity Rain Forest Riches

B: Eukaryotic Diversity Rain Forest Riches

Human Evolution Skin Deep

A: Population Ecology on the Tracks of Wolves and Moose

B: Population Ecology on the Tracks of Wolves and Moose

A: Community Ecology Whats Happening to Honey Bees

B: Community Ecology Whats Happening to Honey Bees

A: Ecosystem Ecology the Heat Is on

B: Ecosystem Ecology the Heat Is on

A: Sustainability the Makings of a Green City

B: Sustainability the Makings of a Green City

A: Overview of Physiology Man Versus Mountain

Digestive System Drastic Measures

A: Cardiovascular System Death in Bogalusa

B: Cardiovascular System Death in Bogalusa

Respiratory System Peak Performance

A: Central Nervous System Smoke on the Brain

B: Central Nervous System Smoke on the Brain

Reproductive System Too Many Multiples

Immune System Viral Mysteries

A: Plant Physiology

B: Plant Physiology

Filters

A(n) in blood pressure is typically followed by a(n) in antidiuretic hormone (ADH)release as part of a feedback loop.

Comparing temperature regulation between giraffes and humans is an example of ; comparing the parts of an octopus's eye to a human eye would be an example of .