Passive transport processes?
Why do passive transport processes exist in biology? The goal is always to achieve a concentration equilibrium. However, when substances are transported with the concentration gradient, equilibrium is not achieved.
Why does wilted lettuce become fresh again in sugar water?
Hello there We're currently learning about osmosis in biology, and I stumbled across this tip online. You're supposed to soak wilted lettuce in sugar water for two hours and BOOM, it's fresh again. I still don't quite understand how this works since the sugar solution is actually hypertonic and the fluid should flow out of…
Why does plasmolysis occur?
Plasmolysis is the release of water, for example, when the external medium is hypertonic, i.e. contains more water. But why does this happen? The plant cell must suffer negative consequences because the turgor decreases and it no longer has enough water. So plasmolysis is totally unnecessary, isn't it? It would be smarter if water flowed…