Which of These Determines the Quaternary Structure of a Protein

question 58

Multiple Choice

Which of these determines the quaternary structure of a protein?

• A)The sequence of amino acids.
• B)The ratio of acidic amino acids to basic amino acids.
• C)The number of alpha helices and pleated sheets along the axis of the protein.
• D)Two or more subchains of amino acids held together by attractions between the chains.
• E)Interactions between amino acids separated by significant distances on the protein chain.

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Definitions:

Cell-mediated Immune Response

The branch of the immune response that involves the activation of T-cells and the direct destruction of infected cells.

T cells

A type of lymphocyte developed in the thymus, crucial for the adaptive immune response, playing roles in cell-mediated immunity and the activation of other immune cells.

Opsonization

The process where pathogens are marked for destruction by immune cells through the binding of antibodies or complement proteins.

Phagocytosis

The process by which a cell engulfs particles such as bacteria or cellular debris to digest them.