Question 1

Negative-feedback mechanisms:

Accepted Answer

A)   minimize changes in blood glucose levels.
B)   maintain homeostasis.
C)   are responsible for an increased rate of sweating when air temperature is higher than body temperature.
D)   All of the above are correct.

Question 2

Match each term with its corresponding definition or explanation
-Altered DNA that causes abnormal proteins to be made that do not perform their intended function

Accepted Answer

A)  Prion
B)  Tumor
C)  Fungi
D)  Gene mutation
E)  BacteriaF) VirusG) Protozoa

Question 3

Intracellular parasites that consist of DNA or RNA surrounded by a protein coat and sometimes by a lipoprotein envelope are called:

Accepted Answer

A)   viruses.
B)   bacteria.
C)   fungi.
D)   protozoa.

Question 4

Of the pathogenic organisms, which of the following are the most complex?

Accepted Answer

A)   Viruses
B)   Tapeworms
C)   Bacteria
D)   Protozoa B

Question 5

Match each term with its corresponding definition or explanation
-An intracellular parasite that consists of an RNA or DNA core surrounded by a protein coat

Accepted Answer

A)  Prion
B)  Tumor
C)  Fungi
D)  Gene mutation
E)  BacteriaF) VirusG) Protozoa F

Question 6

Eponyms are scientific terms that:

Accepted Answer

A)   sound alike but are spelled differently.
B)   can have more than one meaning.
C)   are based on a person's name.
D)   are none of the above.

Question 7

Pathogenesis can be defined as:

Accepted Answer

A)   a specific disease.
B)   a group of diseases.
C)   the course of disease development.
D)   a subgroup of viruses.

Question 8

Epidemiology is the study of the _____ of diseases in human populations.

Accepted Answer

A)   occurrence
B)   distribution
C)   transmission
D)   All of the above are correct.

Question 9

Match each term with its corresponding definition or explanation
-An abnormal growth or neoplasm

Accepted Answer

A)  Prion
B)  Tumor
C)  Fungi
D)  Gene mutation
E)  BacteriaF) VirusG) Protozoa

Question 10

If the secretion of oxytocin during childbirth operated as a negative-feedback control loop, what effect would it have on uterine contractions?

Accepted Answer

A)   Oxytocin would stimulate stronger uterine contractions.
B)   Oxytocin would inhibit uterine contractions.
C)   There would be no changes in the strength of the uterine contractions.
D)   Uterine contractions would initially be weak and then gain strength after the release of the hormone.

Question 11

Intrinsic control:

Accepted Answer

A)   usually involves the endocrine or nervous system.
B)   operates at the cellular level.
C)   is sometimes called autoregulation.
D)   operates at the system or organism level.

Question 12

Give an example of how categories of risk factors or predisposing conditions could overlap.

Accepted Answer

Categories of risk factors or predisposi...

Question 13

Match each term with its corresponding definition or explanation
-Simple organisms that are similar to plants but lack chlorophyll, which allows plants to make their own food; because these organisms cannot make their own food, they parasitize human tissue

Accepted Answer

A)  Prion
B)  Tumor
C)  Fungi
D)  Gene mutation
E)  BacteriaF) VirusG) Protozoa C

Question 14

Homeostasis can best be described as:

Accepted Answer

A)   a constant state maintained by living and nonliving organisms.
B)   a state of relative constancy.
C)   adaptation to the external environment.
D)   changes in body temperature.

Question 15

Match each term with its corresponding definition or explanation
-A type of protein that converts normal protein in the nervous system into abnormal proteins that cause loss of function

Accepted Answer

A)  Prion
B)  Tumor
C)  Fungi
D)  Gene mutation
E)  BacteriaF) VirusG) Protozoa

Question 16

Which of the following may put one at risk for developing a given disease?

Accepted Answer

A)   Environment
B)   Stress
C)   Lifestyle
D)   All of the above

Question 17

Shivering to try to raise your body temperature back to normal would be an example of:

Accepted Answer

A)   the body trying to maintain homeostasis.
B)   a positive-feedback mechanism.
C)   a negative-feedback mechanism.
D)   both A and C.

Question 18

Give an example of a system, either living or nonliving, that is designed to maintain a relatively constant condition by using a negative-feedback mechanism. Explain briefly how the system works to accomplish this.

Accepted Answer

The answer of Give an example of a system, either...

Question 19

Which of the following is a protein substance with no DNA or RNA and is thought to be the cause of mad cow disease?

Accepted Answer

A)   Virus
B)   Bacteria
C)   Prion
D)   Protozoan

Question 20

Diagram a homeostatic control mechanism, including the three basic components.

Accepted Answer

Homeostatic control mechanisms are essen...

Exam 2: Homeostasis

Negative-feedback mechanisms:

Correct AnswerverifiedShow Answer

Match each term with its corresponding definition or explanation -Altered DNA that causes abnormal proteins to be made that do not perform their intended function

Correct AnswerverifiedShow Answer

Intracellular parasites that consist of DNA or RNA surrounded by a protein coat and sometimes by a lipoprotein envelope are called:

Correct AnswerverifiedShow Answer

Of the pathogenic organisms, which of the following are the most complex?

Correct AnswerverifiedB

Match each term with its corresponding definition or explanation -An intracellular parasite that consists of an RNA or DNA core surrounded by a protein coat

Correct AnswerverifiedF

Eponyms are scientific terms that:

Correct AnswerverifiedShow Answer

Pathogenesis can be defined as:

Correct AnswerverifiedShow Answer

Epidemiology is the study of the _____ of diseases in human populations.

Correct AnswerverifiedShow Answer

Match each term with its corresponding definition or explanation -An abnormal growth or neoplasm

Correct AnswerverifiedShow Answer

If the secretion of oxytocin during childbirth operated as a negative-feedback control loop, what effect would it have on uterine contractions?

Correct AnswerverifiedShow Answer

Intrinsic control:

Correct AnswerverifiedShow Answer

Give an example of how categories of risk factors or predisposing conditions could overlap.

Correct AnswerAnswered by ExamLex AICategories of risk factors or predisposi...View AnswerShow Answer

Match each term with its corresponding definition or explanation -Simple organisms that are similar to plants but lack chlorophyll, which allows plants to make their own food; because these organisms cannot make their own food, they parasitize human tissue

Correct AnswerverifiedC

Homeostasis can best be described as:

Correct AnswerverifiedShow Answer

Match each term with its corresponding definition or explanation -A type of protein that converts normal protein in the nervous system into abnormal proteins that cause loss of function

Correct AnswerverifiedShow Answer

Which of the following may put one at risk for developing a given disease?

Correct AnswerverifiedShow Answer

Shivering to try to raise your body temperature back to normal would be an example of:

Correct AnswerverifiedShow Answer

Give an example of a system, either living or nonliving, that is designed to maintain a relatively constant condition by using a negative-feedback mechanism. Explain briefly how the system works to accomplish this.

Correct AnswerverifiedShow Answer

Which of the following is a protein substance with no DNA or RNA and is thought to be the cause of mad cow disease?

Correct AnswerverifiedShow Answer

Diagram a homeostatic control mechanism, including the three basic components.

Correct AnswerAnswered by ExamLex AIHomeostatic control mechanisms are essen...View AnswerShow Answer

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Categories of risk factors or predisposi...
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C

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Homeostatic control mechanisms are essen...
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