A polypeptide chain's adjacent amino acid residues are arranged in regular patterns in space, known as secondary structure. It is kept in place by hydrogen bonds between the amide hydrogens and the peptide backbone's carbonyl oxygens. Helixes and structures are the two main secondary structures.
Local regions of proteins can be organized into one of three three-dimensional configurations: alpha helices (-helix), beta sheets (-strand), or omega loops. The alpha helix is the most prevalent secondary protein shape because it is stable and low-energy.
The interaction of amino acids with every backbone NH hydrogen bound with the backbone C=O group of the corresponding amino acid residue in the polypeptide chain results in the- helix formation. The- helix motif is particularly prevalent in transmembrane regions of proteins that traverse the lipid bilayer.

You are observing proteins in a lab for an experiment. During transport, they have started to unwind and lose their shape.

The level of the structure is the proteins in the secondary.

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The ocean is called the carbon sink because there is mass amounts of carbon all the way at the bottom. How did the carbon get th

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There is absorption of carbon dioxide by the oceans through physicochemical (air-sea surface exchange) and biological processes. During physicochemical process, molecules of CO2 get into the ocean by diffusing into the sea surface waters and dissolving. Various factors such as wind, sea surface mixing, concentrations of CO2, and the temperature of the water influences the amount of CO2 that diffuses and dissolves in the ocean surface water. Also, during biological processes, dead cells, shells and other parts of dead organisms get decayed and releases carbon dioxide at the bottom of the water.

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2 years ago