|Plant Physiology (Biology 327) - Dr. Stephen G. Saupe; College of St. Benedict/ St. John's University; Biology Department; Collegeville, MN 56321; (320) 363 - 2782; (320) 363 - 3202, fax; firstname.lastname@example.org|
In lab we will make "starch prints" using bean and/or geranium leaves. To do so, we will follow the procedures supplied in the references cited below.
Here's an experimental idea from Dr. Walker (University Sheffield, UK): What would happen if we float leaf disks on water +/- sucrose and +/- light overnight and then killing and staining as usual? In which treatment(s) will starch form?
Hypotheses: for each of the following treatments, record your prediction for whether starch will be formed or not.
|Treatment||Predicted Starch formation (+ or -)|
|disks + water + dark →|
|disks + sucrose + dark →|
|disks + water + light →|
|disks + sucrose + light →|
01/07/2009 � Copyright by SG