15 Questions
What gives each protein its unique structure and function?
The specific number and order of amino acids
Which level of protein molecular structure refers to the specific number and order of amino acids in the protein chain?
Primary structure
What is the main function of actin and tubulin proteins within the cell?
Providing structural support to the cell
What is the irreversible process that occurs when a protein loses its shape and structure?
Denaturation
Which type of protein structure involves the bonding of subunits within a protein from multiple polypeptide chains?
Quaternary Structure
Why are proteins considered organic molecules?
Because they contain carbon atoms
What is the primary role of chaperone proteins in the folding of a protein?
Encourage proper folding and assist in maintaining correct shape
What is one consequence of protein denaturation?
The protein loses its function and ability to bind to substrates
In sickle cell anemia, what change in the amino acid sequence leads to the abnormal shape of red blood cells?
Substituting a hydrophilic amino acid with a hydrophobic amino acid
What is the main function of microtubule strands in the cell?
Transport of materials
Which protein molecule acts as a receptor protein binding to the hormone estrogen and also acts as a transcription factor?
Estrogen receptor
What is the role of p53 protein in the cell?
Protect against DNA damage
Which protein molecule helps link neighboring cells together and promotes tissue structure?
Cadherin
What is the main function of the enzyme acetylcholinesterase in muscle cells?
Break down acetylcholine
Which protein molecule aids in restoring the natural membrane potential of neurons and allows for neuron communication?
Sodium-potassium pump
Explore the concept of protein denaturation through examples like increased body temperature's effect on pathogens and cooking eggs. Understand how denaturation leads to irreversible changes in proteins' structure and function.
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