Search found 198 matches

by plasmodesmata11
Fri Feb 06, 2009 3:19 am
Forum: General Discussion
Topic: can anyone help me answer these biology questions?
Replies: 2
Views: 7780

Re: can anyone help me answer these biology questions?

In more friendlier terms, try working on someting yourself. If you know anything about biology (it's ok if you don't, but then why would you be on this site?) you should be able to answer these questions. The internet could also easily provide you these answers, or any textbook. Have fun.
by plasmodesmata11
Mon Jan 26, 2009 11:16 pm
Forum: Botany Discussion
Topic: Turgor Question~
Replies: 2
Views: 4051

When turgor is reduced, the cell loses pressure and "deflates". This inhibits elongation and causes drooping. As to why growth rates fall to zero when cells are still turgid, I am sure that the cell being turgid doesn't mean it must grow. The turgor pressure changes usually for nastic move...
by plasmodesmata11
Mon Jan 26, 2009 11:04 pm
Forum: Botany Discussion
Topic: Alternation of generation
Replies: 8
Views: 20497

Re: Alternation of generation

Yes, angiosperms go through the alternation of generations. The primary stage is the sporophyte with an incredibly small, nutritionally dependent gametophyte stage that is located in the flower. Check out this link for a full diagram and explanation: http://ecology.botany.ufl.edu/ecologyf03/apomixis.html
by plasmodesmata11
Tue Jan 20, 2009 12:16 am
Forum: Ecology
Topic: Aminophosphonic Analogues and Herbicides
Replies: 2
Views: 7799

Aminophosphonic Analogues and Herbicides

I was talking to a man who belongs to the Nature Conservancy, and for a project he wants to remove the plants Japanese Barberry and Oriental Bittersweet from a site. I live in New England, and here they are invasive. I know basics about the plant and its removal, but he was wondering how to treat th...
by plasmodesmata11
Mon Dec 01, 2008 3:51 am
Forum: Botany Discussion
Topic: Phytochelatin Synthase and chelation
Replies: 2
Views: 4544

Phytochelatin Synthase and chelation

All right, I need a little help: Chelation is a process, in plants at least, where trace elements (heavy metals) are absorbed in a soluble, but bound manner. How does the plant utilize them from there? Also, uptake of iron, I hear, is necessary through a chelating agent because it will form a precip...