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Proteins quiz #3

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  • What is an apoenzyme?
    An apoenzyme is the protein part of an enzyme without its cofactors or prosthetic groups.
  • What is a cofactor?
    A cofactor is a non-protein molecule required for enzyme activity.
  • What is the difference between a cofactor and a coenzyme?
    A cofactor can be inorganic or organic, while a coenzyme is specifically an organic cofactor.
  • What is the role of proteins in catalysis?
    Proteins act as enzymes to catalyze biochemical reactions.
  • What is the role of proteins in cell signaling?
    Proteins transmit and receive signals to regulate cellular activities.
  • What is the role of proteins in immune response?
    Proteins such as antibodies recognize and neutralize foreign substances.
  • What is the role of proteins in movement?
    Proteins like actin and myosin are involved in muscle contraction and cell movement.
  • What is the role of proteins in transport?
    Proteins transport molecules across membranes and within the body.
  • What is the role of proteins in storage?
    Proteins store essential molecules for later use.
  • What is the role of proteins in structure?
    Proteins provide structural support to cells and tissues.
  • What is the role of proteins in regulation?
    Proteins regulate gene expression and cellular processes.
  • What is the role of proteins in metabolism?
    Proteins act as enzymes to facilitate metabolic reactions.
  • Where does protein digestion begin in the human body?
    Protein digestion begins in the stomach.
  • Can protein be found in both animal and plant sources?
    Yes, protein can be found in both animal and plant sources.
  • What is the function of the blood protein fibrinogen?
    Fibrinogen is necessary for blood clotting.
  • What does the enzyme pepsin digest?
    Pepsin digests proteins.
  • What is the most abundant protein in plasma?
    Albumin is the most abundant protein in plasma.
  • What does the presence of the rhesus protein on blood represent?
    The presence of the rhesus protein on blood represents the Rh factor, which is important in blood typing.
  • What is the role of hydrochloric acid in protein digestion?
    Hydrochloric acid denatures proteins and activates pepsin for protein digestion in the stomach.
  • What is the monomer of a protein?
    The monomer of a protein is an amino acid.
  • Which plasma protein is essential for blood clotting?
    Fibrinogen is a plasma protein essential for blood clotting.
  • What is the monomer unit of a protein?
    The monomer unit of a protein is an amino acid.
  • Which macromolecule do amino acids form?
    Amino acids form proteins.
  • What is the monomer of a protein called?
    The monomer of a protein is called an amino acid.
  • Name one type of plasma protein.
    Albumin is one type of plasma protein.
  • A protein is a chain of what molecules?
    A protein is a chain of amino acid molecules.
  • Which plasma protein is essential for blood coagulation?
    Fibrinogen is essential for blood coagulation.
  • What is a long chain of amino acid molecules called?
    A long chain of amino acid molecules is called a polypeptide or protein.
  • What is the most abundant protein in plasma?
    Albumin is the most abundant protein in plasma.
  • What is a monomer of a protein?
    A monomer of a protein is an amino acid.
  • What is the monomer of a protein?
    The monomer of a protein is an amino acid.
  • What are the monomers of protein?
    The monomers of protein are amino acids.
  • What are the building blocks (monomers) of protein?
    The building blocks (monomers) of protein are amino acids.
  • The monomer of a protein is?
    The monomer of a protein is an amino acid.
  • What is the monomer for protein?
    The monomer for protein is an amino acid.
  • What is the most abundant plasma protein?
    Albumin is the most abundant plasma protein.
  • What is the most abundant plasma protein?
    Albumin is the most abundant plasma protein.
  • What is the protein monomer?
    The protein monomer is an amino acid.
  • What is the monomer unit of protein?
    The monomer unit of protein is an amino acid.
  • Name one function of a protein macromolecule.
    Proteins catalyze chemical reactions as enzymes.