VIP: Leaf Cross-Section

Provide both name and function labels:

→ Cuticle - wax
reduces water loss → Gas space - evap-
orative cooling → Guard cell - regu-
lates gas exchange → Stoma - gas
exchange path → Upper Epidermis -
window or lens → Palisade Mesophyll -
photosynthesis → Xylem -
water and mineral import → Phloem - sugar and
amino acid export → Bundle Sheath -
phloem loading → Spongy Mesophyll -
PSN + evaporative cooling → Lower Epidermis -
gas exchange

This page © Ross E. Koning 1994.

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