Transport In And Out Of Cells Flashcards
Osmosis
The movement of water molecules across a partially permeable membrane
Active transport requires
Energy
What happens if a plant cell is placed in a concentrated sugar solution?
Water will leave the cell
The rate of diffusion happens faster when…
There is a large surface area to volume ratio
Diffusion takes place in…
Liquids and gas
A potato is placed in pure water. Where is the water concentration the highest?
Outside the potato (in the water)
Active transport can only happen in
Living things
Osmosis is the movement of
Just water
What happpens if a plant cell is surrounded by a solution that has the same concentration as the cytoplasm and vacuole
There is no net movement of water
What part of the cell releases the most energy
Mitochondria
Diffusion
The movement of substances from a high to low concentration
Turgid def
Enlarged and swollen with water
Which gas diffuses into body cells from the bloodstream
Oxygen
Eg of active transport in plants
Mineral ions from the soil going into plant roots from low concentrations in the soil.
Why is it important to record the % change in mass rather than the change of mass(g)
The starting masses of the potatoes were all different
