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Ch. 36
Transport in vascular plants
25
Biology
Undergraduate 1
09/21/2010

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Term
Phyllotaxy is...
Definition
the arrangement pattern of leaves on a stem.
Term
This type of root system has one main root reaching deep-down from which several lateral roots form.
Definition
Taproot system
Term
This root system looks more like a branching network of wide-spread shallow reaching roots.
Definition
Fibrous root system
Term
This term refers to the phenomenon by which a plant will shed a leave or branch that doesn't receive enough sunlight and loses photosynthetic function.
Definition
Self-Pruning
Term
Symbiotic association between plant roots and fungal hyphae
Definition
Mycorrhizae
Term
To calculate the leaf area index of a plant, you would...
Definition

find the ratio between total upper leaf surface of said 


           plant and the          surface area of land on which it grows.

Term
Passive transport (diffusion) is ...
Definition
the transport of solutes from an area of higher concentration to an area of lower concentration; it does not require energy... it happens naturally.
Term
This type of transport moves solutes against their concentration gradients expending energy in the process (ATP)
Definition
Active transport
Term
[image]
Definition
This illustrates ionic active transport
Term
[image]
Definition
This illustrates active transport
Term
Water potential
Definition
...is a measurement that combines the effects of solute concentration and physical pressure.
Term
[image]
Definition
Label the arrows of transport routes and Identify the sympoplast and the apoplast
Term
Symplastic route flows...
Definition

... from one cell's cytosol, through the plasmodesmata to another cell's cytosol

Term
This transport route crosses from one cell cytoplasm, across the cell wall into the other cell cytoplam
Definition
Transmembrane route
Term
The Apolastic route voyages via
Definition
the cells walls into the extracellular spaces and back into the adjacent cell's cell wall
Term
Material in the apoplast is blocked by the ...
Definition
... casparian strip
Term
Why is material coming into the vascular system via the apoplast blocked?
Definition
The material is blocked because it has not yet been filtered since the apoplast only goes through cell wall which does not check incoming material for pathogens and other unwanteds.
Term
The fluid portion of a cell's cytoplasm, which lies outside the organelles and other insoluble components of the cytoplasm
Definition
Cytosol
Term
___________ is a collective term for the cytosol plus the organelles suspended within the cytosol.
Definition
Cytoplasm
Term
gelatinous, semi-transparent fluid that fills most cells. 
Definition
Cytoplasm
Term
A measurement that combines the effects of solute concentration and physical pressure to determine direction of water flow.
Definition
Water Flow (Ψ)
Term
The higher the concentration the ______ the water potential.
Definition
lower
Term
Water always flows from a region of _______ water potential to _______ water potential.
Definition
higher ... lower
Term
Aquaporins are
Definition
Proteins of the cell membrane in plants that enables water to diffuse down its gradient a an increased rate.
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