1) Does diffusion occur instantly?
Diffusion - matter are made up of particles that are always moving. Thus, answer is no.
2) Difference between ingestion & digestion?
Ingestion - process of "eating" of taking in nutrients.
Digestion - mechanical, chemical
*similarity: occur at the same time.
3) What does it mean for intestine to be convoluted
** increase surface area to volume ratio
4) What is the difference between bile & bile salts?
In our level, we can use both. Bile salts is in bile:)
5) Function of semi-lunar valve and tricuspid valve?
Tricuspid Valve (Right Hand Side) --> preventing the back-flow of blood from the right ventricle to the right atrium of the heart
6) Heavy smoking affect heart?
nicotine--> hardening of vessels
cholestrol gets trap in the vessels.
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