Passive Transport
Texto do Storyboard
- Girl at this point, it shouldn't even be a surprise. HAhA
- Now why you cry Alba?
- I'm about to fail the biology test! Tried studying but I don't remember anything.
- Can we study together right now Melanie?
- Yes movement or diffusion.
- Okay! First you need to know Osmosis involves water and only water.
- So it's the movement of water molecules through a membrane right?
- Now what about the categories of Osmosis.
- Hypotonic, water enters the cell and it gets bigger so guess what happens next?
- Exactly. Then hypertonic water leaves the cell so it shrinks.
- It shrinks? No wait that's hypertonic. It swells right?
- Then Isotonic is Normal balance of water.
- I remember ms Fennoy telling us how plant cell won't swell
- Wait then what is Turgor Pressure?
- Yes so they won't because their cell wall becomes turgid.
- Turgor pressure is caused by the osmotic flow of water and occurs in plants, fungi, and bacteria
- Girl I thought it was because it becomes flaccid!
- So what's the difference between turgid and flaccid? We are slow here. Sorry!
- No! plant cell's cell wall become turgid.
- HAHA.Turgid cell contains more water and a Flaccid cell lacks water.Turgid falls under Hypotonic, Flaccid falls under Isotonic and Plasmolyzed falls under Hypertonic.
- Yes so just remember the three categories and definitions of osmosis. Hypertonic, Hypotonic and Isotonic and you will be good.
- WE GOT THIS GUYS!!
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