lecture 5

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indicate whether the following statements are true or false. if a statement is false, explain why it is false. A.The amino acids in the interior of a protein do not interact with the ligand and do not play a role in selective binding. B.Antibodies are Y-shaped and are composed of six different polypeptide chains. C.ATPases generate ATP for the cell D. Hexokinase recognizes and phosphorylates only one of the glucose stereoisomers

A. false - they do B. false - composed of four C. false - break down D. true

antibodies are made by a class of white blood cells called __ _________.

B cells

________________ _____________________ is a method of separating biochemical mixture based on a highly specific interaction between antigen and antibody, enzyme and substrate, receptor and ligand, or protein and nucleic acid.

affinity chromatography

________________ defend us against infection

antibodies

a protein molecule's physical interaction with other molecules determines its __________________ ___________________.

biological properties

_________________ are small non protein molecules that perform functions that would be difficult or impossible to do with amino acids alone.

coenzymes

negative feedback ______________ production.

decrease

________________ are powerful and highly specific catalysts.

enzymes

the regulation of enzyme activity by other molecules is known as ____________ _______________.

feedback regulation

_________________________ is the technique of precipitating a protein antigen out of solution using an antibody that specifically binds to that particular protein.

immunoprecipitation (IP)

positive feedback _____________ production.

increase

the substance that is bound by the protein is referred to as a ___________ for that protein.

ligand


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