Download AGV03/BIOLV23 Name: Fall 2009 Algiers, K Chapter 9: Water in

Name: ________________________________
Algiers, K
AGV03/BIOLV23
Fall 2009
Chapter 9: Water in Plants
Molecular Movement

All molecules are in _______________________________
− _________________________ – Movement of molecules from ___________ to
_____________ concentration
− _________________________ – Movement of ____________________ from
_______________ water concentration to ________________water concentration
− ________________ Pressure - Pressure of water pushing ____________ against
cell _______________
AGV03/BIOLV23
Fall 2009
Name: ________________________________
Algiers, K
− Cell in a _____________________ environment
− Cell in a _____________________ environment
− Plasmolysis– the ______________ of water through osmosis, which
_______________ the cytoplasm away from cell wall
− Molecular Movement
− All molecules are in constant motion
− ________________________– ___________________ of tissue due to adhesion
of _____________________ to internal surfaces
− Aids in ____________________________________
− _____________________ Transport– Cell moving molecules in against a
diffusion gradient (from _____________ to _____________ concentration)
− Requires _________________ from the cell
− Mangroves use ______________________________ to remove ______________
while they use osmosis to obtain water
AGV03/BIOLV23
Fall 2009
Name: ________________________________
Algiers, K
Movement of H2O through the Plant

_____________% of water entering a plant evaporates through ___________________
− ______________________ is the water vapor loss from internal leaf atmosphere
− Water travels through the ______________ through _________________ action
− Water travels from _______________ to _______________ to
_______________, where most of it _______________

As water evaporates from the stomata, (______________________), water is replaced by
_________________________
− Creates ________________________ on water column pulling water in
− Introduction of _____________________________ results in
__________________ of water transport

________________ cells open & close the ______________________
− Stomata regulate _________________________ and ___________ exchange
− _________________ ions (K+) actively enter guard cells during photosynthesis &
water is drawn in by osmosis, ______________________ the stoma
AGV03/BIOLV23
Fall 2009
Name: ________________________________
Algiers, K
− When photosynthesis is not occurring, _________________ ions (K+) leave the
cell, water is drawn out, & stoma ____________________
− Plants usually keep stomata closed during the ________________ and open them
at _______________ to avoid _________________________
Transport of Food Substances

The ______________ is responsible for transportation of ________________ substances
− ______________ are produced by ________________ cells
− Sugars enter ______________ by ______________ transport
− ______________ lets water in phloem by ______________
− Sugars ______________ go toward ______________ cells
− Water moves back to ______________ by osmosis
AGV03/BIOLV23
Fall 2009
Name: ________________________________
Algiers, K
Mineral Requirements for Growth
1. _____________ Essential elements used for growth
− ______________________________: 0.5-3% of plant’s dry weight
Nitrogen, Potassium, Calcium, Phosphorus, Magnesium, Sulfur
− Micronutrients: very small amounts (few parts per million)
The rest of the minerals below
− If deficient in ___________________, plants exhibit ______________________
symptoms, which ___________________________ when deficiency is
_______________________
AGV03/BIOLV23
Fall 2009
Name: ________________________________
Algiers, K
Review:
1. What is the difference between diffusion, osmosis, and active transport?
2. What is the difference between plasmolysis and imbibitions?
3. What happens to most (90%) of the water that enters a plant?
4. Explain how water move up a plant through the xylem.
5. Explain how food substances (sugars) move down a plant through the phloem.
6. Name two macronutrients.
7. Name two micronutrients.
8. Name a few symptoms of nutrient deficiency in the soil.