Question 1

Which statement about thermoregulation is INCORRECT?

Accepted Answer

A)  In a cold environment, the body will gain heat by conduction, convection, radiation, and evaporation. 
B)  In a hot environment when the temperature of the environment exceeds that of the skin surface, evaporation is the only means for the body to lose heat. 
C)  The temperature control centres in the hypothalamus receive afferent input from peripheral thermoreceptors in the skin and central thermoreceptors in the hypothalamus and internal organs.

Question 2

Match the method of heat exchange in the right column with its description in the left column by using the answer code:
-transfer of heat by air or water currents

Accepted Answer

A) convection 
B) evaporation 
C) radiation 
D) conduction

Question 3

Which statement concerning obesity is correct?

Accepted Answer

A)  The percentage of body fat and body mass index are two commonly used determinants of obesity. 
B)  The health risks are same for a person who is in the obese category and a person who is in the overweight category. 
C)  Waist circumference (W
C)  is not a significant measurement in gathering a fat weight distribution. 
D)  A link between obesity and heredity is not yet scientifically proven.

Question 4

MATCHING
Match the items below in the right column with their descriptions in the left column by using the answer code:
-all forms of biological energy expenditure that do not accomplish work outside the body

Accepted Answer

A) energy equivalent of oxygen 
B) external work 
C) calorie 
D) basal metabolic rate 
E) internal work

Question 5

MATCHING
Match the items below in the right column with their descriptions in the left column by using the answer code:
-amount of heat required to raise the temperature of 1 gram of H₂O 1°C

Accepted Answer

A) energy equivalent of oxygen 
B) external work 
C) calorie 
D) basal metabolic rate 
E) internal work

Question 6

The most important factor influencing heat transfer by radiation is the relative humidity of the atmosphere.

Accepted Answer

A) True 
 B)False

Question 7

A fever augments the inflammatory response and therefore inhibits the multiplication of ____________________ microorganisms.

Accepted Answer

The answer of A fever augments the inflammatory response and...

Question 8

The minimal waking rate of energy expenditure determined under standardized conditions is known as the ____________________.

Accepted Answer

The answer of The minimal waking rate of energy expenditure...

Question 9

Which statement is INCORRECT?

Accepted Answer

A)  The most important factor influencing heat transfer by radiation is the relative humidity of the atmosphere. 
B)  Skin vasoconstriction reduces the temperature of the skin. 
C)  Sweating is the only mechanism for heat loss when body temperature is the same as environmental temperature. 
D)  Upon exposure to heat, skin vasodilation occurs, which increases the temperature gradient between the skin and environment, thus promoting heat loss.

Question 10

The ____________________ signalling of the autonomic nervous system controls the vasomotor responses of the skin.

Accepted Answer

The answer of The ____________________ signalling of the autonomic nervous...

Question 11

Match the term with the correct characteristic by using the answer code:
-excessive fat content in adipose tissues stores

Accepted Answer

A) hypothermia 
B) obesity 
C) frostbite 
D) hyperthermia 
E) anorexia
F)heat stroke
G)heat exhaustion

Question 12

An elevated body temperature is always indicative of an infection.

Accepted Answer

A) True 
 B)False

Question 13

What is the major means of increasing heat production in response to a cold environmental temperature?

Accepted Answer

A)  skin vasoconstriction 
B)  wearing warm clothing 
C)  increased muscle activity, such as through shivering and increased voluntary exercise 
D)  formation of "goose bumps"

Question 14

Which statement concerning radiation is correct?

Accepted Answer

A)  It refers to heat emission from a warm object in the form of electromagnetic waves. 
B)  It is only a source of heat loss for the body (i.e., the body can lose but not gain heat by radiation). 
C)  It refers to the transfer of heat by direct contact between a warmer and cooler object. 
D)  It involves the continued cycling of cool air over the body.

Question 15

Which statement concerning nonshivering thermogenesis is correct?

Accepted Answer

A)  It is stimulated by epinephrine and thyroid hormone. 
B)  It refers to the general increase in muscle tone in response to abrupt exposure to cold. 
C)  It enhances the insulative capacity of the skin by promoting increased deposition of brown fat under the skin. 
D)  It refers to the elevation of body temperature in response to pyrogen release.

Question 16

The feeding and satiety centres are located in the hypothalamus.

Accepted Answer

A) True 
 B)False

Question 17

Sweating is the only mechanism for heat loss when body temperature is the same as environmental temperature.

Accepted Answer

A) True 
 B)False

Question 18

When does the lowest metabolic rate occur?

Accepted Answer

A)  during sleep 
B)  during a basal metabolic rate determination 
C)  during exercise 
D)  after a meal

Question 19

Match the term with the correct characteristic by using the answer code:
-heat loss mechanisms are absent despite the fact that the body temperature is rapidly rising

Accepted Answer

A) hypothermia 
B) obesity 
C) frostbite 
D) hyperthermia 
E) anorexia
F)heat stroke
G)heat exhaustion

Question 20

Which system does NOT impact the variance of "Normal" body temperature ?

Accepted Answer

A)  exercise 
B)  the menstrual cycle 
C)  glucose level in blood

Exam 15: Energy Balance and Temperature Regulation

Which statement about thermoregulation is INCORRECT?

Match the method of heat exchange in the right column with its description in the left column by using the answer code: -transfer of heat by air or water currents

Which statement concerning obesity is correct?

MATCHING Match the items below in the right column with their descriptions in the left column by using the answer code: -all forms of biological energy expenditure that do not accomplish work outside the body

MATCHING Match the items below in the right column with their descriptions in the left column by using the answer code: -amount of heat required to raise the temperature of 1 gram of H₂O 1°C

The most important factor influencing heat transfer by radiation is the relative humidity of the atmosphere.

A fever augments the inflammatory response and therefore inhibits the multiplication of ____________________ microorganisms.

The minimal waking rate of energy expenditure determined under standardized conditions is known as the ____________________.

Which statement is INCORRECT?

The ____________________ signalling of the autonomic nervous system controls the vasomotor responses of the skin.

Match the term with the correct characteristic by using the answer code: -excessive fat content in adipose tissues stores

An elevated body temperature is always indicative of an infection.

What is the major means of increasing heat production in response to a cold environmental temperature?

Which statement concerning radiation is correct?

Which statement concerning nonshivering thermogenesis is correct?

The feeding and satiety centres are located in the hypothalamus.

Sweating is the only mechanism for heat loss when body temperature is the same as environmental temperature.

When does the lowest metabolic rate occur?

Match the term with the correct characteristic by using the answer code: -heat loss mechanisms are absent despite the fact that the body temperature is rapidly rising

Which system does NOT impact the variance of "Normal" body temperature ?