BSCI 442
Laboratory Schedule
H. Sze
Fall 2008
Plant Physiology
HJP 2230

 

1.  Sept. 8/9

Safety, Lab. Basics, Chemical Calculations.

Expt. 1.  Making chemical solutions

Planting seeds (by T.As)

 

2. Sept. 15/16

Expt. 2.  Learning to be quantitative:  Estimating protein levels in seed and seedlings (sprouts)

Construction of a standard curve.

Use of the spectrophotometer

 

3.  Sept. 22/23

Results due

Expt. 3.  Importance and behaviour of water: 

Determination of water potential and its effect on water movement

 

4.  Sept 29/30

 

* Report due

Expt. 4. Water potential and the pathways of water transport

A. Determination of xylem water potential

B. Know the structure of root, stem and leaf

 

5.  Oct. 6/7

Expt. 5.  Factors regulating leaf guard cell movement

Guard cells regulate the opening and closing of stomata and thus control gas exchange into and out of the plant.

 

6.  Oct. 13/14

 

*Report due

Expt. 6.  Photosynthetic oxygen evolution

Light energy oxidizes water to yield oxygen and electrons.

 

7.  Oct. 20/21

Expt. 7. Measuring photosynthetic electron transport:

Light energy absorbed by chlorophyll can be dissipated as fluorescence or used in a photochemical reaction (electron  transfer)

 

8.  Oct  27/28

 

 

* Report due

Expt. 8. Preparing for an oral presentation

A.  Searching for scientific references in plant biology

How do I read a scientific paper? What? How? Why?

Class will be held in McKeldin Library, Rm # 2109

9.  Nov 3/4

Summary due

Expt. 8. B.  Presenting and discussing a special topic

Prepare for next expt: cut barley seeds

 

10.  Nov. 10/11

Light and hormonal regulation of development

Expt. 9.  Design experiments to test effect of environmental factors (light or temperature) and hormones (ethylene, ABA, auxin) on germination and development of wild-type or mutant plants.
Propose hypothesis and begin expt

 

11.  Nov. 17/18

Expt. 9 . 

[continued]  Analyze results quantitatively (Excel) and interpret the findings.   Present the results to class.

Movies!  Motion in plants

 

12.  Nov. 24/25

Expt. 10.  Induction of alpha-amylase by the hormone, gibberellic acid, during barley seed germination.   Effect of abscisic acid.

Determine the effect of embryo and GA on a-amylase activity and protein levels. 

 

13.  Dec. 1/2

 

 

 

 

* Report due

Expt. 11.  Exercise:  Searching for genes, proteins, and their expression patterns using databases.

Using NCBI & other databases to find the latest scoop.

 

N.B.  Class will meet in Chemistry Building, Rm 3222. 

Open Work Station Lab. [Caedmon Walters, computer manager]

 

14.  Dec. 8/9

Clean up lab. Last day to turn in all reports to T.As.

 

 

Message from the Student Honor Council

The University of Maryland, College Park has a nationally recognized Code of Academic Integrity, administered by the Student Honor Council. This Code sets standards for academic integrity at Maryland for all undergraduate and graduate students. As a student you are responsible for upholding these standards for this course. It is very important for you to be aware of the consequences of cheating, fabrication, facilitation, and plagiarism. For more information on the Code of Academic Integrity or the Student Honor Council, please visit
http://www.shc.umd.edu.

 

To further exhibit your commitment to academic integrity, remember to sign the Honor Pledge on all examinations, laboratory reports and assignments: "I pledge on my honor that I have not given or received any unauthorized assistance on this examination (report)."