Transport Process in Plants Flashcards
(44 cards)
The process of transporting water, minerals and food to all parts of the plant body.
Transportation
The uptake and loss of water and solutes by ___________
Individual Cells
Distance transport of substances from cell to cell at the level of tissue or organs.
Short Transport
Distance transport of within Xylem and Phloem at the level of the whole plant.
Long Transport
2 Means of Transport
Passive and Active Transport
Transport without input of energy, involves the movement of molecules and no amount of energy is required
Passive Transport
Transport with the use of energy, this transport involves the movement of molecules from lower concentration to higher concentration with the use of energy.
Active Transport
Types of Passive Transport
- Simple Diffusion
- Osmosis
- Facilitated Diffusion
The movement of a substance from an area of high concentration to an area of low concentration.
Simple Diffusion
Simple Diffusion is a ____ process and occurs most likely in _______________
slow, liquid and gases
Transport gasses (lenticel) is a very important process for photosynthesis where carbon dioxide from the stomate diffuses into the leaves and finally into the cells.
Diffusion
Rate of Diffusion depends on?
Concentration
Pressure
Temperature (High Temperature, High diffusion)
Permeability
Movement of water molecules from a piece from a place of higher concentration to a place of lower concentration to create a stable and equal cellular environment.
Osmosis
3 types of osmosis
Isotonic
Hypertonic
Hypotonic
It is a balanced environment where it does not result in any net movement of water in or out of the cell. However a plant cell may become flaccid (soft, drooping or inelastic).
Isotonic
More salts in the inside, when there is an excessive amount of water inside, the cell wall will burst.
Hypotonic
The bursting of plasma membrane
Plasmolysis
More salts outside (the cell will shrink). It implies that the external solution has a higher solute concentration than the internal cytoplasm of the plant cell.
Hypertonic
A special type of diffusion which includes the absorption of water by solid, called colloids, resulting in enormous increase in volume.
Imbibition
It is utilized by molecules that are unable to freely cross the phospholipid bilayer.
Facilitated Diffusion
Types of Facilitated Diffusion
Channel Proteins
Carrier Proteins
Proteins that acts like a pore in the membrane that lets H2O molecules or small ions through quickly
Channel Proteins
Specific for an ion molecule, or group of substance, carry ions/molecules across the membrane by changing shape after binding of the ions/molecules
Carrier Proteins
Types of Active Transport
Chemiosmosis and Charge Gradient