Homeostasis Question Preview (ID: 38719)


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What is homeostasis?
a) fluctuate greatly between very high and low values
b) ingestion of enough food to satisfy hunger
c) tendency of the body to maintain a stable environment
d) remains within certain limited ranges

Which of the following is not an example of homeostasis?
a) regulation of blood glucose
b) temperature regulation
c) regulation of vision
d) regulation of blood carbon dioxide levels

Organisms must be able to react to a:
a) Homeostasis, respond
b) Homeostasis, Energize
c) Homeostasis, Organize
d) Stimulus, Respond to environment

Stimulation of the heat-loss center causes ________.
a) Blood vessels in the skin to constrict
b) Breathing to become slow and shallow
c) Sweat glands to increase their output
d) All of the above

How does the body remove excess carbon dioxide from the body?
a) By gas exchange in the lungs
b) By gas exchange in the kidneys
c) By gas exchange in the liver
d) All of the above

How does sweat keep us cool?
a) Sweat is cool so it cools us down
b) As sweat evaporates it removes heat from the skin
c) It carries heat from one part of the body to another
d) None of the above

What is vasodilation?
a) Arterioles become wider, increasing the flow of blood in the skin capillaries
b) Arterioles become narrower, decreasing the flow of blood in the skin capillaries
c) Arterioles become narrower, increasing the flow of blood in the skin capillaries
d) None of the above

What happens when blood sugar levels become too high?
a) Insulin is secreted, causing the conversion of glucose to glycogen
b) Glucagon is secreted, causing the conversion of glucose to glycogen
c) Insulin is secreted, causing the conversion of glycogen to glucose
d) None of the above

What effect does insulin have on blood glucose concentration?
a) It increases the concentration of glucose
b) It increases the concentration of glucagon
c) It decreases the concentration of glucose
d) None of the above

It decreases the concentration of glucose
a) to avoid sweets
b) to workout
c) to rest
d) conversion of glycogen to glucose

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