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Homeostasis
Test Description: Plenary for homeostasis additional science
Instructions: Answer all questions to get your test result.
1) Vaso-dilation
A
You have this if you are diabetic
B
Blood flows closer to the surface of the skin to allow heat to escape
C
Keeps your body\'s internal environments steady
D
Blood vessels contract away from the skin to keep you warm
2) Vasoconstriction
A
Blood vessels contract away from the skin to keep you warm
B
Blood flows closer to the surface of the skin to allow heat to escape
C
Hairs lay flat agains your skin
D
Keeps your body\'s internal environments steady
3) Which organ in the body monitors blood glucose concentration?
A
Liver
B
Pituitry Gland
C
Stomach
D
Pancreas
4) Name the enzyme that might digest insulin
A
Lipase because insulin is protein
B
Amylase because insulin is a carbohydrate
C
Protease because insulin is a protein
D
Lipase because insulin is a fat
5) Negative feedback is...
A
when a sensory organ detects a change and causes a response to increase the change
B
When your body realises it has done something wrong
C
When you hurt yourself
D
when a sensory organ detects a change and causes a response to counteract the change detected
6) If your body gets too hot it responds by
A
shivering, vasodilation and hairs laying flat
B
sweating, vasodilation and hairs laying flat
C
sweating, vasoconstriction and hairs laying flat
D
shivering, vasoconstriction and hairs standing on end
7) Sweating cools your body down
A
because it absorbs the heat from your body
B
because as it evaporates it takes heat energy from your body
C
because as it evaporates it gives you cold energy
D
because as it is cold it is the same as washing your face with water
8) We shiver to warm up because
A
it encourages you to move
B
it distracts us from the cold
C
the quick contracting and relaxing warms up our muscles and releases heat energy
D
it uses up our energy so we get tired and go to bed
9) Homeostasis controls
A
Blood sugar and body temperature
B
Blood sugar, oxygen, carbon dioxide, water and temperature
C
Blood sugar, bodytemperature and water
D
levels of oxygen, water, carbon dioxide and temperature
10) A green house is an example of homeostasis in industry because
A
it is kept warm by the sun so the plants have better conditions
B
the conditions must be kept between levels so the plants produce the optimum produce
C
the conditions must be kept between levels so the plants don't die
D
the conditions are monitored all the time
*select an answer for all questions
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