Homeostasis Flashcards
Bodily levels that need to be controlled include what four things?
ION CONTENT
WATER CONTENT
SUGAR CONTENT
TEMPERATURE
Ion content is regulated by what?
THE KIDNEYS
Ions, once taken into the body by food, they’re then absorbed into what?
THE BLOOD
Some ions are lost in sweat. Why does this taste salty?
IT CONTAINS NA+
Water is taken into the body as food and drink and is lost from the body in which 3 days?
THROUGH THE SKIN AS SWEAT
VIA THE LUNGS IN BREATH
VIA THE KIDNEYS AS URINE
On a cold day when you’re not exercising, you don’t sweat much, so you’ll produce more urine. What will the urine look like and why?
THE URINE WILL BE PALE SINCE THE WASTE CARRIED IN THE URINE IS MORE DILUTED
On a hot day, or when you’re exercising, you sweat a lot, and so will produce less urine. What will this urine look like and why?
MORE CONCENTRATED HENCE A DEEPER COLOUR
Body temperature is controlled by what?
BY THE BRAIN
All enzymes work best at a certain temperature. At what temperature do the enzymes within the human body work best at?
37 DEGREES CELSIUS
What does homeostasis mean?
ALL THE FUNCTIONS OF YOUR BODY WHICH TRY TO MAINTAIN A CONSTANT INTERNAL ENVIRONMENT