Cells That Are Infected, Damaged, or Have Reached the End

question 25

Multiple Choice

Cells that are infected, damaged, or have reached the end of their functional life span often undergo "programmed cell death." This controlled cell suicide is called apoptosis. Select the appropriate description of this event on a cell's life cycle.

• A) Apoptosis is regulated by cell surface receptors that signal when a cell has reached its density-dependent limits.
• B) During apoptosis, dying cells leak out their contents, including digestive enzymes that also destroy healthy cells.
• C) During apoptosis, cellular agents chop up the DNA and fragment the organelles and other cytoplasmic components of a cell.
• D) Each cell organelle has protein signals that initiate the breakdown of the organelle's components, which leads to cell death.

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Definitions:

System Restore

A feature within Windows that allows you to revert your computer's state (including system files, installed applications, Windows Registry, and settings) to that of a previous point in time, which can be used to recover from system malfunctions or other problems.

Windows XP

A version of the Microsoft Windows operating system, introduced in 2001, that marked significant advancements in user interface and stability.

Windows 10

A version of Microsoft's operating system released in July 2015, offering features like the Cortana assistant, Edge browser, and multiple desktops.

Operating System

Software that manages computer hardware and software resources, providing common services for computer programs.