975576
Description
Mind Map by Steve Harton, updated more than 1 year ago
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Created by Steve Harton
over 10 years ago
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9.2 Transport in the
phloem of plants
- NATURE OF SCIENCE
- Developments in scientific
research follow
improvements in apparatus
- Measuring phloem
transport rates
- Aphid stylets +
radioactively-labelled CO2
- Aphid stylets +
radioactively-labelled CO2
- Measuring phloem
transport rates
- Developments in scientific
research follow
improvements in apparatus
- Plants transport organic
compounds from sources to sinks
- Incompressibility of water allows
transport along hydrostatic
pressure gradients the source
- Active transport is used to load
organic compounds into phloem
sieve tubes at the source
- High concentrations of solutes in
the phloem at the source lead to
water uptake by osmosis
- Raised hydrostatic pressure
causes the contents of the
phloem to flow towards sinks
- Raised hydrostatic pressure
causes the contents of the
phloem to flow towards sinks
- Structure-function
relationships of
phloem sieve tubes
- High concentrations of solutes in
the phloem at the source lead to
water uptake by osmosis
- Active transport is used to load
organic compounds into phloem
sieve tubes at the source
- Identification of xylem and
phloem in microscope
images of stem and root
- Incompressibility of water allows
transport along hydrostatic
pressure gradients the source
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