Glossary Flashcards
Osmosis
Movement of solvent molecules through a selectively permeable membrane, from an area of high water potential to low.
Diffusion
Movement of molecules from area of high concentration to low.
Plasmolysis
Contraction of protoplast of plant cell because of loss of water from cell.
Turgor
Rigidity of plant due to pressure of cell contents against cell wall.
Translocation
Transport of materials from leaves to other parts of plant
Transpiration
Water movement from soil to atmosphere.
Compensation point
Where light intensity is at the point where rate of photosynthesis is equal to point of respiration.
Photosynthesis
Process by which plants use energy from sunlight to produce glucose from co2 and water.
Aerobic respiration
Using oxygen to produce energy from food.
Anaerobic respiration
Respiration without oxygen