Welcome

Hey Everyone,

This is my attempt to bring more technology into the classroom. I hope now that testing is over we can use the computer lab more often.

Please complete the tasks assigned and we will be in great shape for our field trip on Friday!

GREAT PLANT ESCAPE

One of the first things you should do after you have finished looking up the plants is to open the link below and complete case 3.

http://www.urbanext.uiuc.edu/gpe/gpe.html

This should help us get through some of the nitty gritty things quickly. Feel free to work with a partner!

Sunflower germination

This movie shows germination and early growth of sunflower seedlings under low intensity white light. As the seedlings emerge from the soil, they are already beginning to make chlorophyll and turn green. The cotyledons and apical hook unfold as the plant emerges into the light. One of the more striking things is the robust nutational movement (rotation of the stem) shown by these seedlings under continuous dim light. In darkness and in bright light, the nutational movement is present but less robust (see photomorphogenesis movie for comparison). It is almost like the seedlings are searching for a better light source. The time between images in this movie was 1 hour and they are shown at 6 frames per sec.