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Surface-active

surface-active

Indicating the property of certain agents of altering the physicochemical nature of surfaces and interfaces, bringing about lowering of interfacial tension; they usually possess both lipophilic and hydrophilic groups.

See: surfactant.


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Can anyone identify this picture?

... algae, especially pheophyta, have special organs in which they deposit gas, to make them lighter essentially so that they can be closer to the surface of the water.

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by MrMistery
Mon Sep 14, 2009 11:56 pm
 
Forum: General Discussion
Topic: Can anyone identify this picture?
Replies: 1
Views: 31

Doing research project -- trying to configure dosages...

... mesothelin antibody reacts with the death receptors for Fas after the mesothelin-ligand has bound itself to the mesothelin on the cancer cell's surface. In other words, will cancer cell apoptosis occur? The main components of the procedure have been worked out by my mentor and I. However, we ...

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by HenryH
Sat Sep 12, 2009 2:59 pm
 
Forum: Molecular Biology
Topic: Doing research project -- trying to configure dosages...
Replies: 0
Views: 28

Re:

... until it reaches the sunlight so it can start photosynthesis (it needs to get to the light quickly). The plant detects that it has reached the surface by the presence of red light (sunlight has all colors, but the receptors are just adapted to detect red light). By growing a plant in green ...

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by robsabba
Tue Sep 08, 2009 3:29 pm
 
Forum: Botany Discussion
Topic: green wavelength in plant photosynthesis
Replies: 4
Views: 198

green wavelength in plant photosynthesis

... until it reaches the sunlight so it can start photosynthesis (it needs to get to the light quickly). The plant detects that it has reached the surface by the presence of red light (sunlight has all colors, but the receptors are just adapted to detect red light). By growing a plant in green ...

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by MrMistery
Sat Sep 05, 2009 5:44 am
 
Forum: Botany Discussion
Topic: green wavelength in plant photosynthesis
Replies: 4
Views: 198

sterilization in microwave oven

... to safe levels) of what you put in them, but they are neither safe nor reliable for sterilization (destroying all living organisms on the surface).

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by canalon
Thu Sep 03, 2009 3:14 pm
 
Forum: Microbiology
Topic: sterilization in microwave oven
Replies: 12
Views: 10422
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