You are asked to determine if a tissue sample taken from a plant stem comes from a monocot or eudicot. How will you accomplish this?  

A.  Look at the ground tissue to see if it is arranged in concentric rings or in parallel bundles.
B.  Examine the vascular cambium and determine if it is divided into segments or is continuous throughout the stem.
C.  Determine if the xylem and phloem are located in separate vascular bundles or are bundled together.
D.  Examine the epidermis and determine the depth of the cuticle layer.
E.  Locate the vascular bundles and analyze their pattern. 


E.  Locate the vascular bundles and analyze their pattern. 

Both monocots and eudicots have vascular bundles that contain both xylem and phloem. Monocots have these vascular bundles arranged randomly throughout the stem while eudicots have these bundles located in a circular pattern towards the outside of the stem. See section 36.4 for more detailed information.

Biology & Microbiology

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