The noble gases are left out of the trends in atomic radii because there is great debate over the experimental values of their atomic radii.

The SI units for measuring atomic radii are the nanometer (nm) and the picometer (pm). 1 nm = 1 X 109 m; 1 pm = 1 X 10-12 m.

TLS Online TPP Program

#Id: 7759

#Section 2: General Biology

Some elements exist naturally as molecules. For example, hydrogen and oxygen exist as two-atom molecules.

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#Id: 9165

#Section 3: Genetics, Cellular and Molecular Biology

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#Id: 8177

#Section 3: Genetics, Cellular and Molecular Biology

In plant cells,

Golgi apparatus serves as the site at which the complex polysaccharides of the cell wall (pectin & hemicellulose) are synthesized.

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#Id: 8091

#Section 2: General Biology

Plasmalogens are ether glycerophospholipids in which the alkyl moiety is cis-a, b-unsaturated

      

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#Id: 9191

#Section 3: Genetics, Cellular and Molecular Biology

Types of selection