Picture First Roots and Stems - Exam 2
Monocot Root Dicot Stem
What are the two things that have a pith?
Pericycle: The ring of tissue between the endodermis and the phloem. Role: it gives rise to lateral roots (lateral meristems) *Pericycle (inside layer) Endodermis (outside)
What is #10 if #9 is the Endodermis?
Endodermis: - Regulates entry of materials to vascular tissue - The endodermis forces water through a biological membrane! - Lets mineral nutrients in but NOT out - Also membrane proteins control water out
What is this?
Dicot Root - Cross/X in the middle - No pith
What is this? Monocot Stem Dicot Stem Monocot Root Dicot Root
Dicot Stem - Peripheral Vascular Bundles (on the outer parts) - Has a Pith - Has Vascular Cambium
What is this? Monocot Stem Dicot Stem Monocot Root Dicot Root
Monocot Stem -Scattered Vascular Bundles - No Pith
What is this? Monocot Stem Dicot Stem Monocot Root Dicot Root
Monocot Root - Has a Pith - Xylem Form a ring
What is this? Monocot Stem Dicot Stem Monocot Root Dicot Root Note: The core of the parenchyma = pith
The Dicot Stem has Peripheral Vascular Bundles.
Which one has Peripheral Vascular Bundles?Monocot Stem or Dicot Stem?
The Monocot Stem has Scattered Vascular Bundles.
Which one has Scattered Vascular Bundles?Monocot Stem or Dicot Stem?