Revise how gases and liquids transport into and out of both animal and plant cells occurs through diffusion, osmosis and active transport.

The salt content of the oldest leaves is extremely variable. With senile leaves of plants growing in culture solutions of high salt concentration the salt content is very high, and it is very low with ...

Figure 1 | How plants sense salt and activate calcium channels. a, When the sodium ions (Na +) of salt are sensed outside a plant cell, an unknown calcium channel is activated and calcium ions (Ca ...

The opposite is the case in the higher concentration salt solutions. If the salt concentration in the cup is higher than inside the potato cells, water moves out of the potato into the cup.

The plant absorbs saline water from the soil through its roots, filters out the salt, and expels the concentrated salt solution onto the outer surface of its leaves.

"Mammals are attracted to low concentrations of salt; they will choose a salty solution over a salt-free one. But they will reject highly concentrated salt solutions, even when salt-deprived." ...

“If you make a really concentrated salt solution, or if you mix things like water and ethanol, you can actually feel them heat up a little bit,” says Anthony Straub, a professor of ...

If you have a gravel yard, you may have noticed weeds popping up between the rocks. Hand-pulling them can be a pain, so consider this simple trick to kill them.

Ants far from the coast are more attracted to a dilute salt (NaCl) solution than to a more concentrated sugar solution, probably because plant-eating ants in salt-poor inland areas are salt ...

"When built up in high concentrations, it messes with natural processes like photosynthesis, leading to cell damage and dehydration of the plant. "Once you've whipped up your salt solution, gently ...

Discover how substances move into and out of cells through diffusion, osmosis and active transport, then complete a practical investigation.