Have you ever wondered what happens to the rain once it falls and it's just on the ground?
Now that you're talking about it, I'm kind of wondering too. Let's find out!
Well I've done some research lately and when it rains the water goes into the ground and through the plant cell membranes. This process is called osmosis. The rain is moving from the high concentration of the clouds to the low concentration of the ground. This is one type of passive transport. Passive transport takes no energy.
You just said one type of passive transport. Are there more?
Wait, so if passive transport takes no energy is there a transport type that takes energy?
Yes indeed there is. The other type of passive transport is called diffusion. Diffusion is basically the same thing as osmosis except that it doesn't have to be just in water or through a cell membrane. It can happen anywhere and anytime. An example of diffusion is simply just spraying a perfume bottle. The perfume particles move from a high concentration of the bottle to the low concentration of the air.
Yes, thank you for mentioning, I almost forgot. This transport type is called active transport and it on the other hand does require energy.
Yes of course. There are two main examples used for active transport, endocytosis and exocytosis.
Can you please give me an example?
One example of endocytosis is putting a paper clip into the bottom of a bag, clamping it off with your scissors and take the paperclip out.
Endocytosis is basically the engulfment of an unwanted particle into the cell to protect the cell.
That is all over the place! Can I have a further explanation... maybe an example perhaps?
What is endocytosis?!
Exocytosis is basically the opposite of endocytosis. An example is continuing your paper clip thing and unclamping your scissors and taking the paper clip back out.
Wow! This is super cool! I've learned so much today. I feel like a genius!