Each of the Following Statements Regarding CD95-Stimulated Programmed Cell Death

question 52

Multiple Choice

Each of the following statements regarding CD95-stimulated programmed cell death is true except

• A)CD95 ligand binding with CD95 receptor stimulates recruitment of adaptor proteins.
• B)adaptor proteins stimulate the PI3K-Akt pathway.
• C)recruitment to sites of receptor clustering activates initiator caspase (caspase 8)activity.
• D)initiator caspases proteolytically cleave executioner procaspases (procaspase 3).
• E)a caspase cascade results in the cleavage of many types of proteins in the target cell.

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Definitions:

Stress Hormones

Chemical substances released into the body in response to perceived threats, which prepare the body for fight or flight, including cortisol and adrenaline.

Lymphocytes

Type of white blood cells that are an integral part of the immune system, involved in protecting the body against both infectious disease and foreign invaders.

NK Cells

Immune cells part of the innate immune system, crucial for their ability to recognize and destroy cells that are stressed, infected, or cancerous without prior sensitization.

Learned Helplessness

A state of feeling completely unable to influence one's own life, generally because of a distressing event or ongoing unsuccessful endeavors.