Hole's Human Anatomy & Physiology (Shier), 12th Edition

Ph.I.L.S. 3.0 Quizzing 25: Ph.I.L.S. 3.0 Quizzing

Ph.I.L.S. 3.0 Quizzing

1
What is the effect of cooling on the rate of oxygen consumption?
A)The rate of oxygen of oxygen consumption increased.
B)The rate of oxygen of oxygen consumption did not change.
C)The rate of oxygen of oxygen consumption decreased.
2
Click the 'NORM' button on the graph and notice that the two (black) lines intersect. At what temperature did the two lines intersect for this animal on the normal diet?
A)Around 12 C.
B)Around 15 C.
C)Around 18 C.
D)Around 21 C.
3
The relationship between the rate of oxygen consumption and temperature has two phases. Is the slope of the (black) line at the cooler temperatures (below 18 C):
A)flatter than the slope of the line at warmer temperatures?
B)the same as the slope of the line at warmer temperatures?
C)steeper than the slope of the line at warmer temperatures?
4
Consider the data at obtained between 18 and 24 C, when the mouse showed a slower increase in metabolic rate. Why did the metabolic rate increase when the chamber was cooled?
A)The mouse was more awake at the cooler temperature.
B)The thyroid gland was stimulated by the stress of cooling.
C)The animal allowed its body temperature to drop.
5
Why did the mouse exhibit a faster increase in metabolic rate at the cooler temperatures (below 18 C)?
A)The mouse was more awake at the cool temperatures.
B)The animal shivered to keep warm because thyroid hormones could not maintain body temperature.
C)The animal allowed its body temperature to drop.
6
Click the 'PTU' button on the graph, and notice the two (red) lines. At what temperature did the two lines intersect?
A)Around 12 C.
B)Around 15 C.
C)Around 18 C.
D)Around 21 C.
7
Click the 'BOTH' button on the graph and determine the temperatures at which the black and the red lines intersect. Is the value for the black lines (the animal on normal food).
A)warmer than the value for the red lines (the animal on PTU food).
B)the same as the value for the red lines (the animal on PTU food).
C)cooler than the value for the red lines (the animal on PTU food).
8
If the steeper slope on the graphs indicates when the mice were shivering, what does this tell you about the effectiveness of the thyroid hormones in the animal on the food with PTU?
A)Thyroid function was compromised, so the PTU animal began shivering at a warmer temperature.
B)Thyroid function was normal; the animal lost heat because it had less fat.
C)Thyroid function was compromised, so the PTU animal began shivering at a cooler temperature.
9
If the steeper slope on the graphs indicates when the mice were shivering, which animal exhibited the steeper slope in the cold temperatures (below 16 C)?
A)The animal eating the normal food.
B)The animal whose food contained PTU.
C)The slopes were the same for the two animals.
10
Why did the animal on the PTU diet exhibit a faster increase in metabolic rate than the animal on the normal food?
A)The animal on the PTU diet was forced to shiver to compensate for low thyroid function.
B)The animal on the PTU diet lost heat faster from its body.
C)The animal on the PTU diet had less adrenalin so its response to stress was less.
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