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Development of understanding about structure and function of plants…
Development of understanding about structure and function of plants
function
gas exhange
diffuse into stomates
open and close
manages gas exchange and water vapor loss
closes
temp inc
wind intensity
prevent water loss
light intesity
Vascular system
Xylem
transports water and other dissolved ions
Unidirectional
Purpose
across all areas of leaf
water, nutrients to cells in need
Phloem
bidirectional
transports sugars and other materials
structure
epidermal tissue
stomates
guard cells
vascular tissue
xylem
phloem
transpiration, cohesion, tension theory
explanation
movement of water up xylem
1.transpiration causes tension
pulls water from xylem through veins
Cohesion, adhesion. maintain transpiration stream
root pressure forces water from root to shoot
Photosynthesis
carbon dioxide + water -> glucose + oxygen
occurs in chloroplasts and autotrouphs
light dependent/independent phases
reverse of cellular respiration
(glucose + oxygen -> carbon dioxide + water)
Development
photosynthesis
Jan Igenhousz
Jean senebier
Joseph Priestly
F.F Blackman
Jan baptista Van Helmont
Cornelius Van Niel
theory
Henry Dickson
Eugen Askenasy
John Holy
H. Jochen Schenk
Stephan Hales
Steven Jansen