OK so basically there are two reactants needed for respiration it would be oxygen and glucose OK so the main product that is created from this is called ATP.
Answer:
The air popped out of the empty rigid metal containers because the pressure inside the container is high.
<em>This is so because as air enters the container it tries to spread out and its volume increases as particles started occupying the empty space. With the occupying volume of particles, the air particles move faster and hit the container harder that increases the pressure inside the container, and air-popped out.</em>
When the cell increases in size, the volume increases faster than the surface area, because volume is cubed where surface area is squared. When there is more volume and less surface area, diffusion takes longer and is less effective.
I believe it is 137 kg. (the third one down)
