Podcast
Questions and Answers
Which molecule binds to a cell-surface receptor named Fas (CD95) to trigger apoptosis?
Which molecule binds to a cell-surface receptor named Fas (CD95) to trigger apoptosis?
- Hydrogen peroxide
- Tumor necrosis factor-alpha (TNF-α)
- Lymphotoxin (TNF-β)
- Fas ligand (FasL) (correct)
What is the main function of molecules that bind to specific receptors on the cell surface and signal apoptosis?
What is the main function of molecules that bind to specific receptors on the cell surface and signal apoptosis?
- Initiate apoptosis (correct)
- Stimulate protein synthesis
- Enhance DNA repair
- Promote cell growth
Which of the following triggers apoptosis by binding to the TNF receptor?
Which of the following triggers apoptosis by binding to the TNF receptor?
- Hypochlorite ion
- Tumor necrosis factor-alpha (TNF-α) (correct)
- Hydroxyl radical
- Superoxide anion
What is one common characteristic of cells undergoing apoptosis?
What is one common characteristic of cells undergoing apoptosis?
Which of these is NOT a death activator triggering apoptosis?
Which of these is NOT a death activator triggering apoptosis?
How do nucleotides released by cells undergoing apoptosis attract wandering phagocytic cells such as macrophages?
How do nucleotides released by cells undergoing apoptosis attract wandering phagocytic cells such as macrophages?
What is one example of a trigger that induces apoptosis?
What is one example of a trigger that induces apoptosis?
Which of the following is NOT a trigger for apoptosis?
Which of the following is NOT a trigger for apoptosis?
Cells undergoing apoptosis respond to signals that are:
Cells undergoing apoptosis respond to signals that are:
Which scenario would likely induce apoptosis in cells?
Which scenario would likely induce apoptosis in cells?
What effect do increased levels of oxidants have on a cell?
What effect do increased levels of oxidants have on a cell?
Which statement best describes one way cells respond to triggers of apoptosis?
Which statement best describes one way cells respond to triggers of apoptosis?
Which protein is important in triggering cell apoptosis?
Which protein is important in triggering cell apoptosis?
What role do cytotoxic T lymphocytes play in apoptosis?
What role do cytotoxic T lymphocytes play in apoptosis?
How do cells respond to DNA damage?
How do cells respond to DNA damage?
What is a common consequence of mutations in the p53 gene?
What is a common consequence of mutations in the p53 gene?
Which cells threaten the integrity of the organism and are targeted for apoptosis?
Which cells threaten the integrity of the organism and are targeted for apoptosis?
How do cytotoxic T lymphocytes contribute to the process of apoptosis?
How do cytotoxic T lymphocytes contribute to the process of apoptosis?
