Which of the Following Statements Concerning Signal Transduction by the Insulin

question 30

Multiple Choice

Which of the following statements concerning signal transduction by the insulin receptor is not correct?

• A)Activation of the receptor protein kinase activity results in the activation of additional protein kinases.
• B)Binding of insulin to the receptor activates a protein kinase.
• C)Binding of insulin to the receptor results in a change in its quaternary structure.
• D)The receptor protein kinase activity is specific for tyrosine residues on the substrate proteins.
• E)The substrates of the receptor protein kinase activity are mainly proteins that regulate transcription.

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Definitions:

Fibrocartilage

A tough, dense type of cartilage that provides substantial support and withstands heavy pressure.

Elastic Cartilage

A type of cartilage that contains elastic fibers, allowing it to stretch and return to its original shape, found in structures like the ear and epiglottis.

Hyaline Cartilage

A type of connective tissue found in various parts of the body, providing support with some flexibility, such as in the nose, trachea, and at the ends of ribs.

Vertebrae

Vertebrae are the individual bones that make up the vertebral column (backbone) in vertebrates, providing structural support and housing for the spinal cord.