Leaving Certificate Biology
Homeostasis EQ iQuiz
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Homeostasis means maintaining
a constant …
Body shape
Body mass
External
environment
Internal
environment
Which of the following is involved
in homeostasis?
Brain
Bones
Bladder
Bronchi
Which of the following animals is
an endotherm?
Salmon
Seal
Snake
Spider
Which of the following may result
in a drop in water content of the
blood?
Sleeping
Exercise
A cold day
Drinking
The body temperature of an
ectotherm varies with it’s …
Food intake
Fluid intake
Internal
temperature
External
temperature
At which temperature do human
enzymes work best?
35 °C
36 °C
37 °C
38 °C
In cold conditions the blood
capillaries in the skin …
Move up
near surface
Constrict
Dilate
None of these
Which of the following controls the
water content of the blood?
ADH
ADP
FSH
HGH
Leaves of plants are well adapted
for rapid gas exchange because
they are …
Narrow
Thin
Thick
Green
Which homeostatic organ controls
the pH of the blood?
Heart
Skin
Kidney
Lung
Which of the following is not a
means by which the body retains
heat?
Adipose tissue
Hairs stand up
Blood capillaries
constrict
Sweat is released
ADH acts on which of the following
parts of the nephron?
Proximal tubule &
collecting Duct
Proximal tubule &
Loop of Henle
Distal tubule &
collecting Duct
Distal tubule &
Loop of Henle
The concentration in the blood of
which of the following gases,
controls breathing?
Oxygen
Carbon dioxide
Carbon monoxide
All of these
What is the main source of heat
that keeps the body at a constant
temperature?
Exercise
Metabolism
Eating
Breathing
Name the main hormone involved
when internal body temperature
drops.
Oxytocin
Insulin
Testosterone
Thyroxine
Homeostasis EQ iQuiz
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