Protein structure is conceptually divided into four levels, from most basic to higher order: primary structure describes the order of amino acids in the peptide chain. secondary structure describes the basic three-dimensional structures, α-helices and β-sheets. tertiary structure describes how the secondary structures come together to form an individual globular protein. quaternary structure results from individual proteins coming together to form multi-subunit protein complexes.

a. to encourage apoptosis

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these macromolecules could either be amino acids, proteins or nucleic acids. they are responsible for the chemical changes and reactions that affects largely the cell and its composition. take for instance the cytoplasm of the cell where these organelles are settled. these simple organelles are composed of macromolecules which ignites and catalyses different functions that enables cells, in macro-perspective in motion and metabolism. in intestines for example, metabolism happens and breaking down parts of a food to simpler compounds that are used and these nutrients delivered throughout the body and again broken down by into smaller components.

answerscaffolding proteins;