BOT 410 Exam # 2 fall 1997 Name __________________________________________

 

30 (pts.) Briefly explain the meaning of the following. Answer only: 10 (3 pts. Each)

a] Hypodermis

 

 

 

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b] Nonarticulated Laticifer

 

 

 

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c] Articulated Laticifer

 

 

 

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d] Secretory Duct or Canal

 

 

 

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e] Colleter

 

 

 

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f] Shizogenous

 

 

 

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g] Lysigenous

 

 

 

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h] Interfascicular

 

 

 

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i] exarch

 

 

 

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j] endarch

 

 

 

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k] triarch

 

 

 

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l] polyarch

 

 

 

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m] latex

 

 

 

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n] epithelium

 

 

2. (31 pts.) All plant organs contain the same three primary tissues. Identify these

A] _________________________________________

                    B] _________________________________________

C] _________________________________________

Make labeled outline sketches of cross sections which illustrate the following structures.

 

 

3] (13 pts.) What traits are associated with leaves that live in hydric environments

A] ______________________________________________________

B] ______________________________________________________

C] ______________________________________________________

D] ______________________________________________________

E] ______________________________________________________

Why does a floating leaf like Water Lily (Nymphia) have a mix of hydromorphic and xeromorphic traits?

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

What mix of 2 Major hydromorphic and xeromorphic traits would you find with a floating leaf like water lily (Nymphia)?

Give two traits for each.

Xeromorphic

A] ________________________________________________________

B] ________________________________________________________

Hydromorphic

A] _______________________________________________________

B] _______________________________________________________

4] (19 pts.)There are two basic types of Apical Meristems found in land plants. Identify these.

A] _____________________________ _______________________________

B] _____________________________ _______________________________

In what two ways is the root apex different from the stem apex?

A] _____________________________________________________________________

B] ______________________________________________________________________

How does branching in Roots Differ from Branching in Shoots?

The Endodermis is an important feature that is found in virtually all roots.

Where is the Endodermis found in Roots? ________________________________________________

__________________________________________________________________________________

To which tissue system does it belong? __________________________________________________

What unique structural feature does the Endodermis have which distinguishes it from adjacent cells? You may want to use a labeled sketch.

How does this structure regulate the passage of materials from the Endodermis to the vascular cylinder?

____________________________________________________________________________________

Bonus (1 pt.) Cite one Example of a SPECIFIC non-root organ which has an endodermis

____________________________________________________________________________________

5] ( 12 pts.) There are various types of vascular bundles in stems. Identify these in the ID ___________ spaces inside each box and make labeled outline sketches which illustrate these.

Bonus Question (10 pts)

You get a call from the Bishop Museum. They ask you to identify the plant used to make a unique type of Hawaiian mat.

Lead me through a logical sequence of steps & decision points that you would take to identify the plant part used to make the mat, and a general identification of the type of plant used with a minimal amount of damage. Include key anatomical features you would use in a "if then" fashion (i.e.) if it has wings it is a bird, if not it is a mugwump.

Bonus (2 pts.) Defend the hypothesis that the venation in monocots is the functionally the same as that in dicots