Dictionary » P » Pores



1. One of the minute orifices in an animal or vegetable membrane, for transpiration, absorption, etc.

2. A minute opening or passageway; an interstice between the constituent particles or molecules of a body; as, the pores of stones.

Origin: F, fr. L. Porus, Gr. A passage, a pore. See Fare.

Please contribute to this project, if you have more information about this term feel free to edit this page

Results from our forum

Transpiration and Photosynthesis.

... through the xylem from the roots. However more significantly for photosynthesis to take place there needs to be gas exchange through the stomatal pores predominantly found on the lower sides of the leaf. If these pores are closed very little water can evapourate (transpire). So if there are low ...

See entire post
by Babybel56
Fri Mar 14, 2014 4:07 am
Forum: Botany Discussion
Topic: Transpiration and Photosynthesis.
Replies: 4
Views: 3080

PLGA scaffold problem

... in vitro and in vivo effect of this compound. Because it is water solule I could not use salt (particle) leaching method for the production of pores inside the scaffold. I do not have any computarized system so it should be manuel. As additional note this chemical is insoluble in ethanol and ...

See entire post
by Yeditepe
Sun Aug 12, 2012 5:03 pm
Forum: Cell Biology
Topic: PLGA scaffold problem
Replies: 0
Views: 2306

Molecules entering the bloodstream from skin absorption

... that seems to never be backed up by simple biology and chemistry of the body. It is widely taught in aromatherapy classes and books that the pores on the feet are larger than any other part of your body and that when you put essential oils on the soles of your feet you are able to get to ...

See entire post
by watermelonstand
Wed Jul 11, 2012 11:42 pm
Forum: Human Biology
Topic: Molecules entering the bloodstream from skin absorption
Replies: 2
Views: 14652

Help on lysis via the complement system

... antigens. Following which, complement proteins attach to the antibodies and produce the membrane attack complex, which causes the formation of pores in the cell membrane of the infected cell, causing it to then lyse. However, I was wondering, isn't this somewhat like necrosis where the cell ...

See entire post
by lokifenrir96
Mon Apr 30, 2012 3:00 pm
Forum: Human Biology
Topic: Help on lysis via the complement system
Replies: 2
Views: 2055

Cuticle, spores, vascular, plant evolution

... it goes into how plants evolved from living in the freshwater to living on land with the use of: --------------------- the cuticle and cutinized spores: a method of prevention against desiccation and protection for the spores against drying out stomata: initially just pores on the plant to enable ...

See entire post
by Klarien
Wed Feb 15, 2012 9:27 am
Forum: Botany Discussion
Topic: Cuticle, spores, vascular, plant evolution
Replies: 1
Views: 2525
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 10,235 times. 
What links here | Related changes | Permanent link