Marine animals, which are hypo-osmotic, actively exclude salts. Some marine animals increase the concentrations of solutes, such as urea and amino acids, in their body fluids to match the osmotic potential of seawater and thus reduce the movement of water out of their bodies

TLS Online TPP Program

#Id: 8339

#Unit 2. Cellular Organization

Filament capping proteins:

CapZ blocks (+)end Tropomodulin blocks (-)end

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#Id: 602

#Unit 2. Cellular Organization

CII is a very unstable protein in E. coli; it is degraded by a specific protease called FtsH (HflB), encoded by the hfl gene. 

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#Id: 8286

#Unit 1. Molecules and their Interaction Relevant to Biology

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#Id: 9875

#Unit 4. Cell Communication and Cell Signaling

The main physical barriers—the body’s first line of defense—are the epithelial layers of the skin and of the mucosal and glandular tissue surfaces connected to the body’s openings

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#Id: 188

#Unit 5. Developmental Biology

At high concentrations (about 300 molecules/cell), activin induced expression of the goosecoid gene and instructed the cell to become the frog’s dorsal-most structures.