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Homeostasis Flashcards | StudBud
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Homeostasis
Homeostasis
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A wrap up of feedback loops in human body systems.
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16 cards
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Answers
1
Why do kidneys need a rich blood supply?
To maintain a concentration gradient
So they are connected to other parts of the body
To feel involved
To quickly remove reabsorbed products
2
What will happen to our body if we starve ourselves for 8 hours?
increased level of insulin
the condition is called hypergycemia
increased level of glucagon
The pancreas releases glycogen
3
Which part of the brain monitors the body's sugar levels, temperature and water content?
hypothalamus
hyppocampus
hypothermus
hyppopotamus
4
Which hormone is responsible for signaling the storage of blood glucose?
insulin
glucose
glucagon
glycogen
5
What type of feedback loop is shown?
Positive
Negative
6
How does sweat keep us cool?
As sweat evaporates it removes heat from the skin.
It carries heat from one part of the body to another.
Sweat is cool so it cools us down.
Sweat conserves heat.
7
What happen when our internal temperature increases?
shivering
vasoconstriction occurs
vasodilation occurs
erector pili muscle contracts
8
What does glucagon do?
makes extra glucose
Makes the liver breakdown glycogen, converting it to glucose
causes sugar to be stored
Makes cells use molecules for respiration
9
Why is it important to maintain a body temperature of 37 degrees.
So you don't shiver
Enzymes work best at 37 degrees
muscles work best at 37 degrees
10
What happen when we have eaten a chocolate brownies?
glucagon level increased
blood sugar level drops
insulin level increased
hypoglycemia
11
The amount of water reabsorbed in the kidney depends on which of the following hormones?
ADA
ADH
ATP
insulin
12
Which of the following is an example of negative feedback in living things?
Thyroid hormone regulation
Blood clotting
Apple ripening
Labor and childbirth
13
If our body is to function properly, it must regulate...
blood sugar level
all of them
PH level
water and salt level
14
Positive feedback is
Negation of the problem
Self-amplifying
to maintain set point
Always rising and falling
15
Why are large molecules left behind
they are too big to pass through the tubule membrane
they move via active transport instead
they cannot diffuse
16
Which of the following is NOT a mechanism of homeostasis?
contraction of uterus during childbirth
blood calcium level regulation
increased rate of perspiration
increased rate of breathing
