PLANT
PHYSIOLOGY:
Water and Nutrient Transport in Plants
ROOT HAIRS thin-walled sender extensions of root epidermal cells that greatly increase the
surface area for absorption.
APOPLASTIC
PATHWAY water moves exclusively through the cell wall without crossing any membranes..
CASPARIAN BAND OF RADICAL CELL WALLS IN THE ENDODERMIS THAT IS IMPREGNATED WITH THE WAX LIKE,
STRIP HYDROPHOBIC SUBSTANCE SUBERIN.
SUBERIN ACTS AS A BARRIER TO WATER AND SOLUTE MOVEMENT.
SYMPLASTIC WATER TRAVELS FROM ONE CELL TO THE NEXT VIA THE PLASMODESMATA.
PATHWAY
A NARROW CHANNELS THAT ACT AS A INTERCELLULAR CYTOPLASMIC BRIDGES TO FACILITATE
PLASMODESMATA COMMUNICATION AND TRANSPORT OF MATERIALS BETWEEN PLANT CELLS.
ROOT PLANT IF FORCE THAT HELPS TO DRIVE FLUIDS UPWARD INTO THE WATER-CONDUCTING VESSELS
PRESSURE (XYLEM); RESPONSIBLE FOR PUSHING UP WATER TO SMALL HEIGHTS IN THE STEM.
BULK WATER AND SOLUTES MOVE THROUGH XYLEM VESSELS AND SIEVE TUBES BY ___.
FLOW
TRANSPIRATION THE LOSS OF WATER FROM THE PLANT THROUGH EVAPORATION AT THE LEAF SURFACE.
COHESION-TENSION THE WATER IS PULLED FROM THE XYLEM UNDER THE TENSION DUE TO THE ADHESIVE ATTRACTION BETWEEN WATER AND LEAF
THEORY OF SAP ASCENT
CELL WALLS; IT REQUIRES THE COHESIVE PROPERTIES OF WATER TO SUSTAIN LARGE TENSIONS IN THE XYLEM WATER COLUMNS.
COHESION MUTUAL ATTRACTION BETWEEN WATER MOLECULES.
ATTRACTION OF WATER MOLECULES TO POLAR SURFACES (SUCH AS THE SURFACE OF TRACHEARY
ADHESION
ELEMENTS.)
SURFACE WATER MOLECULES ARE ATTRACTED TO EACH OTHER IN THE LIQUID PHASE MORE THAN TO WATER IN THE GAS
TENSION PHASE.
PHOTOSYNTHATES PRODUCTS OF PHOTOSYNTHESIS.
SOURCES STRUCTURES THAT PRODUCE PHOTOSYNTHATES FOR THE GROWING PLANT.
TRANSLOCATION sugars produced in sources, such as leaves, need to be delivered to growing parts of the plant
via the phloem.
SINKS the points of sugar delivery, such as roots, young shoots, and developing seeds.
PHLOEM organic compound are transported from sources to sinks via a vascular tube system called ___.
PLANT SAP THE NUTRIENT RICH, VISCOUS FLUID OF THE PHLOEM.
PHYSIOLOGY:
Water and Nutrient Transport in Plants
ROOT HAIRS thin-walled sender extensions of root epidermal cells that greatly increase the
surface area for absorption.
APOPLASTIC
PATHWAY water moves exclusively through the cell wall without crossing any membranes..
CASPARIAN BAND OF RADICAL CELL WALLS IN THE ENDODERMIS THAT IS IMPREGNATED WITH THE WAX LIKE,
STRIP HYDROPHOBIC SUBSTANCE SUBERIN.
SUBERIN ACTS AS A BARRIER TO WATER AND SOLUTE MOVEMENT.
SYMPLASTIC WATER TRAVELS FROM ONE CELL TO THE NEXT VIA THE PLASMODESMATA.
PATHWAY
A NARROW CHANNELS THAT ACT AS A INTERCELLULAR CYTOPLASMIC BRIDGES TO FACILITATE
PLASMODESMATA COMMUNICATION AND TRANSPORT OF MATERIALS BETWEEN PLANT CELLS.
ROOT PLANT IF FORCE THAT HELPS TO DRIVE FLUIDS UPWARD INTO THE WATER-CONDUCTING VESSELS
PRESSURE (XYLEM); RESPONSIBLE FOR PUSHING UP WATER TO SMALL HEIGHTS IN THE STEM.
BULK WATER AND SOLUTES MOVE THROUGH XYLEM VESSELS AND SIEVE TUBES BY ___.
FLOW
TRANSPIRATION THE LOSS OF WATER FROM THE PLANT THROUGH EVAPORATION AT THE LEAF SURFACE.
COHESION-TENSION THE WATER IS PULLED FROM THE XYLEM UNDER THE TENSION DUE TO THE ADHESIVE ATTRACTION BETWEEN WATER AND LEAF
THEORY OF SAP ASCENT
CELL WALLS; IT REQUIRES THE COHESIVE PROPERTIES OF WATER TO SUSTAIN LARGE TENSIONS IN THE XYLEM WATER COLUMNS.
COHESION MUTUAL ATTRACTION BETWEEN WATER MOLECULES.
ATTRACTION OF WATER MOLECULES TO POLAR SURFACES (SUCH AS THE SURFACE OF TRACHEARY
ADHESION
ELEMENTS.)
SURFACE WATER MOLECULES ARE ATTRACTED TO EACH OTHER IN THE LIQUID PHASE MORE THAN TO WATER IN THE GAS
TENSION PHASE.
PHOTOSYNTHATES PRODUCTS OF PHOTOSYNTHESIS.
SOURCES STRUCTURES THAT PRODUCE PHOTOSYNTHATES FOR THE GROWING PLANT.
TRANSLOCATION sugars produced in sources, such as leaves, need to be delivered to growing parts of the plant
via the phloem.
SINKS the points of sugar delivery, such as roots, young shoots, and developing seeds.
PHLOEM organic compound are transported from sources to sinks via a vascular tube system called ___.
PLANT SAP THE NUTRIENT RICH, VISCOUS FLUID OF THE PHLOEM.
