What does this describe? group of similar cells working together?
tissue
15
What does this describe? Building blocks of life
cells
5
What does this describe? group of tissues working together
organ
5
Which system do the kidneys and bladder belong to?
urinary/renal
10
If you went into the naca cave which has an average temperature of 70 C, why would you build up water in your lungs?
it condenses BECAUSE your lungs are cooler than the air!!
25
What is the change in carbon dioxide levels when you breath in, compared to when you breath out?
From 0.04% to 4 % (accept there is 100 X more carbon dioxide but it is always a small amount)
20
When you inhale you take in ___(a)________. When you exhale you breath out ___ (b)_______. What are (a) and (b)?
a) oxygen b) carbon dioxide
15
Name the structure that protects your lungs
ribcage
10
What is the scientific name for an air sac?
alveoli
5
Put the following in order to describe how oxygen reaches your lungs: trachea-capillaries-air goes in nasal cavity- bronchi- blood to heart- bronchioles-alveoli
air goes in nasal cavity--> trachea--> bronchi--> bronchioles--> alveoli-->capillaries--> blood to heart
25
the volume of gas in the lungs at a given time during the respiratory cycle
lung volume
10
When your diaphragm relaxes, it moves __a)___ and the volume inside your chest ___b)___
a) up b) decreases
20
When you inhale, water vapour is ____ than when you exhale
less
15
soft tissue in the bone where blood cells are made
