Transcript Warm-Up - Effingham County Schools

Ch. 37 Warm-Up
1.
What conclusions should we draw from van
Helmont’s experiment?
2.
Where would you expect a deficiency of a
relatively immobile element to be seen first in
a plant? (pg. 756)
3.
What are the possible consequences of selling
off water rights to cities and developments?
Chapter 37
Plant Nutrition
What you need to know:
Mutualistic relationships between plant
roots and the bacteria and fungi that grow
in the rhizosphere help plants acquire
important nutrients.
 Nonmutualistic nutritional adaptations
enable plant survival in adverse habitats.

Nutritional Requirements
Essential element: required for plant to
complete life cycle and produce another
generation
 Macronutrients (large amounts): CHNOPS +
K, Ca, Mg
◦ Nitrogen = most important!
 Micronutrients (small amounts): Fe, Mn, Zn,
Cu, etc.
Unusual nutritional adaptations:
epiphytes, parasitic plants, canivorous
plants
Epiphyte: grow on another plant, absorb H2O
from rain through leaves
Parasitic Plants: not photosynthetic; absorb
sugar and minerals from living hosts
Carnivorous Plants: photosynthetic, but obtain
some nitrogen and minerals by digesting small
animals