Zusammenfassung der Ressource
9.1 Transport in the
xylem of plants
- NATURE OF SCIENCE
- Use models as
representations of
the real world
- Water transport in the xylem
using apparatus and materials
that show similarities in
structure to plant tissues
- Models of water transport in xylem
- Blotting or filter paper
- Filter paper
- Porous pots
- Capillaries tubing
- Potometers
- Effect of temperature or
humidity on transpiration rates
- Transpiration
- Water from the roots to the
leaves to replace losses
from evaporation
- Active uptake of mineral ions
in the roots causes absorption
of water by osmosis
- Cohesive vs Adhesive
properties of water
- Structure of the xylem vessels
- Measurement of stomatal
apertures and the distribution
of stomata using leaf casts
- Drawing the structure of primary
xylem vessels in sections of stems
based on microscope images
- Aim 7
- Image processing software and
digital microscopes increases
further the ability to gather
more data to ensure reliability
- Adaptations of plants
- Deserts
- Saline soils for
water conservation