PHSI3011 12-2 Comparative Physiology and Thermal #2

Frage 1 von 33

1

Fülle die Lücke, um den Text zu vervollständigen

What is Tb?
(just imagine the "b" is subscript)

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Frage 2 von 33

1

Fülle die Lücke, um den Text zu vervollständigen

What is Ta?
(just imagine the "a" is subscript)

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Frage 3 von 33

1

"Homeotherm" means:

Wähle eine der folgenden:

"one body temperature"
Homeoerotically "hot"
Self-heating

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Frage 4 von 33

1

Tb varies with circadian rhythm by up to 1 degree. When is it lowest and highest?
(again, imagine the "b" is subscript)

Wähle eine der folgenden:

3-6am lowest; 3-6pm highest
3-6am highest; 3-6pm lowest
12-3am lowest; 12-3pm highest
12-3am highest; 12-3pm lowest

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Frage 5 von 33

1

Tb varies with the menstrual cycle, usually increasing ~0.5-1°C during the:
(again, imagine the "b" is subscript)

Wähle eine der folgenden:

Post-ovulatory phase
Post-menstrual phase
Follicular phase
Post-follicular phase

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Frage 6 von 33

1

Babies are less able to maintain Tb. Why?
(just imagine the "b" is subscript)
(select all that apply)

Wähle eine oder mehr der folgenden:

Don’t readily shiver or sweat
High surface-mass ratio
They’re dumb

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Frage 7 von 33

1

During a fever (or exercise), the normal Tb is:
(just imagine the "b" is subscript)

Wähle eine der folgenden:

34-36°C
36-38°C
38-40°C
40-42°C

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Frage 8 von 33

1

True or false: Old people also have less effective regulation, due in part to their reduced ability to dissipate heat. One reason for this is sweat gland atrophy.

Wähle eins der folgenden:

WAHR
FALSCH

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Frage 9 von 33

1

True or false: Old people also have less effective regulation, due in part to their reduced ability to generate heat. One reason for this is sweat gland atrophy.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 10 von 33

4

Wähle von der Dropdown-Liste, um den Text zu vervollständigen.

E = G + T*S
E = ( Total internal energy, Energy emitted from a system )
G = ( disposable ("Good") energy, energy Gained by a system )
T = ( absolute Temperature, Thermodynamic energy within a system, Temperature increase )
S = ( entropy, total energy within a System )

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Frage 11 von 33

1

True or false: an Endotherm is an organism that can generate its own heat.

Wähle eins der folgenden:

WAHR
FALSCH

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Frage 12 von 33

1

True or false: Metabolism is defined as all the chemical processes involved in energy production, energy release, and growth.

Wähle eins der folgenden:

WAHR
FALSCH

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Frage 13 von 33

1

Anabolic vs Catabolic:

Wähle eine oder mehr der folgenden:

Anabolic = FORMATION of substances
Anabolic = BREAKDOWN of substances
Catabolic = FORMATION of substances
Catabolic = BREAKDOWN of substances

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Frage 14 von 33

1

Metabolic Rate (MR) = the rate at which energy is consumed during:
(select all that apply)

Wähle eine oder mehr der folgenden:

internal work
external work
energy expenditure / unit of time
energy expenditure (independent of a unit of time)

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Frage 15 von 33

1

BMR vs RMR
The difference between BASAL metabolic rate and RESTING metabolic rate is:

Wähle eine der folgenden:

Both are idling, but Basal is during minimal part of the day
Both are idling, but Resting is during minimal part of the day

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Frage 16 von 33

1

Metabolic Rate (MR) depends on:
(select all that apply)

Wähle eine oder mehr der folgenden:

Muscle activity (voluntary)
Muscle activity (involuntary)
Certain hormones
A rise in tissue temperature itself

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Frage 17 von 33

1

Hormones that can influence Metabolic Rate (MR) include Thyroxine and Adrenaline. What effect can they have?

Wähle eine der folgenden:

Adrenaline increases MR; Thyroxine decreases MR.
Adrenaline decreases MR; Thyroxine increases MR.
Both DECREASE MR.
Both INCREASE MR.

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Frage 18 von 33

1

Under resting conditions, the rate of heat production is:

Wähle eine der folgenden:

~80 kcal/h
~400-600 kcal/h
~80-120 kcal/h
~120-160 kcal/h
~800 kcal/h

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Frage 19 von 33

1

During a fast walk or jog, Metabolic Rate (MR) is increased to 400-600 kcal/h. In the absence of compensatory heat loss (sweating etc), this extra thermal load would increase Body Temperature by how much?

Wähle eine der folgenden:

1°C every 8-10 minutes
1°C every minute
1°C every hour
1°C every 10-20 minutes
1°C every 1-2 hours

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Frage 20 von 33

1

The most common method to measure metabolic rate is:

Wähle eine der folgenden:

Indirect calorimetry
Guesswork?

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Frage 21 von 33

1

Animals including the stripe-faced dunnart (Sminthopsis macroura) are heterothermic. Heterotherms are:

Wähle eine der folgenden:

Able to maintain homeothermic thermoregulation, but sometimes can enter torpor.
Animals which maintain thermoregulation collectively.

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Frage 22 von 33

1

Torpor vs Hibernation.
What's the difference?

Wähle eine der folgenden:

Torpor lasts less than a day; Hibernation lasts longer than a day.
Torpor lasts less than a day; Hibernation is a multiday series of torpor bouts.

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Frage 23 von 33

1

Torpor and hibernation use are found in which groups:
(select all that apply)

Wähle eine oder mehr der folgenden:

Artiodactyls (even toed ungulates - e.g. sheep, cattle, pigs, camels, goats)
Certiodactyls (marine mammals - e.g. whales, dolphins, porpoises)
Perissodactyls (odd-toed ungulates - e.g. horses, rhinoceroses)
Monotremes (e.g. echidnas)
Marsupials (e.g. pygmy possums)
Primates (e.g. Antivaxxers)
Insectivores (Eulipotypla: European shrews and hedgehogs; Afrotheria: tenrecs and elephant shrews)
Carnivores (badgers and bears)
Rodents (e.g. ground squirrels and hamsters)
Bats

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Frage 24 von 33

1

Are there Aussie birds which hibernate?

Wähle eine der folgenden:

Yeah
Nah

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Frage 25 von 33

1

"Super-hibernator":
This is fucking awesome - the arctic ground squirrel hibernates at body temperatures of ~0°C! around the lips is at (or slightly above) zero, while some other parts (including colon) get BELOW 0°C.
Yeah, this is true. So cool, though (geddit?? ...sigh).

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 26 von 33

3

Klicke auf jeden orangenen Punkt und wähle die korrekte Antwort.

Current view of the efferent mechanisms of thermoregulation.
Label the three appropriate areas.

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Frage 27 von 33

1

True or false: Brown Fat / Brown Adipose Tissue (“BAT”) can induce non-shivering thermogenesis in the absence of muscle stimulus.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 28 von 33

2

Wähle von der Dropdown-Liste, um den Text zu vervollständigen.

During cold exposure, ( Sympathetic, Parasympathetic ) ( Norepinephrine (/noradrenaline), Epinephrine (/adrenaline) ) release activates BAT by stimulation of lipolysis and “futile” UCP1-dependent mitochondrial respiration.

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Frage 29 von 33

1

True or false: UCP1 is found in significant levels in the cortex of non-torpor mammals.

Wähle eins der folgenden:

WAHR
FALSCH

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Frage 30 von 33

1

Wähle von der Dropdown-Liste, um den Text zu vervollständigen.

UCP1 is:
( Un-, Universal ) ( Coupling, Cold-sensitive, Climate-sensitive ) ( Progenitor, Protein ) 1

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Frage 31 von 33

1

Which of the 4 ways of heat loss is the most physiologically significant (under normal conditions)?

Wähle eine der folgenden:

Radiation
Conduction
Convection
Evaporation

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Frage 32 von 33

1

Hot flushes usually last how long?

Wähle eine der folgenden:

1-5 min
5-10 min
10-15 min
15-30 min
30-60 min

	Erstellt von Michael Jardine vor etwa 7 Jahre

PHSI3011 12-2 Comparative Physiology and Thermal Physiology #2

PHSI3011 12-2 Comparative Physiology and Thermal #2

Frage 1 von 33

Fülle die Lücke, um den Text zu vervollständigen

What is Tb? (just imagine the "b" is subscript)

Erklärung

Frage 2 von 33

Fülle die Lücke, um den Text zu vervollständigen

What is Ta? (just imagine the "a" is subscript)

Erklärung

Frage 3 von 33

"Homeotherm" means:

Wähle eine der folgenden:

Erklärung

Frage 4 von 33

Tb varies with circadian rhythm by up to 1 degree. When is it lowest and highest? (again, imagine the "b" is subscript)

Wähle eine der folgenden:

Erklärung

Frage 5 von 33

Tb varies with the menstrual cycle, usually increasing ~0.5-1°C during the: (again, imagine the "b" is subscript)

Wähle eine der folgenden:

Erklärung

Frage 6 von 33

Babies are less able to maintain Tb. Why? (just imagine the "b" is subscript) (select all that apply)

Wähle eine oder mehr der folgenden:

Erklärung

Frage 7 von 33

During a fever (or exercise), the normal Tb is: (just imagine the "b" is subscript)

Wähle eine der folgenden:

Erklärung

Frage 8 von 33

True or false: Old people also have less effective regulation, due in part to their reduced ability to dissipate heat. One reason for this is sweat gland atrophy.

Wähle eins der folgenden:

Erklärung

Frage 9 von 33

True or false: Old people also have less effective regulation, due in part to their reduced ability to generate heat. One reason for this is sweat gland atrophy.

Wähle eins der folgenden:

Erklärung

Frage 10 von 33

Wähle von der Dropdown-Liste, um den Text zu vervollständigen.

Erklärung

Frage 11 von 33

True or false: an Endotherm is an organism that can generate its own heat.

Wähle eins der folgenden:

Erklärung

Frage 12 von 33

True or false: Metabolism is defined as all the chemical processes involved in energy production, energy release, and growth.

Wähle eins der folgenden:

Erklärung

Frage 13 von 33

Anabolic vs Catabolic:

Wähle eine oder mehr der folgenden:

Erklärung

Frage 14 von 33

Metabolic Rate (MR) = the rate at which energy is consumed during: (select all that apply)

Wähle eine oder mehr der folgenden:

Erklärung

Frage 15 von 33

BMR vs RMR The difference between BASAL metabolic rate and RESTING metabolic rate is:

Wähle eine der folgenden:

Erklärung

Frage 16 von 33

Metabolic Rate (MR) depends on: (select all that apply)

Wähle eine oder mehr der folgenden:

Erklärung

Frage 17 von 33

Hormones that can influence Metabolic Rate (MR) include Thyroxine and Adrenaline. What effect can they have?

Wähle eine der folgenden:

Erklärung

Frage 18 von 33

Under resting conditions, the rate of heat production is:

Wähle eine der folgenden:

Erklärung

Frage 19 von 33

During a fast walk or jog, Metabolic Rate (MR) is increased to 400-600 kcal/h. In the absence of compensatory heat loss (sweating etc), this extra thermal load would increase Body Temperature by how much?

Wähle eine der folgenden:

Erklärung

Frage 20 von 33

The most common method to measure metabolic rate is:

Wähle eine der folgenden:

What is Tb?
(just imagine the "b" is subscript)

What is Ta?
(just imagine the "a" is subscript)

Tb varies with circadian rhythm by up to 1 degree. When is it lowest and highest?
(again, imagine the "b" is subscript)

Tb varies with the menstrual cycle, usually increasing ~0.5-1°C during the:
(again, imagine the "b" is subscript)

Babies are less able to maintain Tb. Why?
(just imagine the "b" is subscript)
(select all that apply)

During a fever (or exercise), the normal Tb is:
(just imagine the "b" is subscript)

Metabolic Rate (MR) = the rate at which energy is consumed during:
(select all that apply)

BMR vs RMR
The difference between BASAL metabolic rate and RESTING metabolic rate is:

Metabolic Rate (MR) depends on:
(select all that apply)

Torpor vs Hibernation.
What's the difference?

Torpor and hibernation use are found in which groups:
(select all that apply)

"Super-hibernator":
This is fucking awesome - the arctic ground squirrel hibernates at body temperatures of ~0°C! around the lips is at (or slightly above) zero, while some other parts (including colon) get BELOW 0°C.
Yeah, this is true. So cool, though (geddit?? ...sigh).

Current view of the efferent mechanisms of thermoregulation.
Label the three appropriate areas.

UCP1 is:
( Un-, Universal ) ( Coupling, Cold-sensitive, Climate-sensitive ) ( Progenitor, Protein ) 1