Programmed Aging Theories Propose That Senescence Occurs Because

question 20

Multiple Choice

Programmed aging theories propose that senescence occurs because

• A)the telomeres capping the ends of chromosomes become shorter with each cell division and their loss eventually stops the chromosomes from replicating.
• B)mistakes in the replication of cells or buildup of damaging by-products from biologic processes eventually destroy the organism.
• C)unstable oxygen,formed normally during metabolism,can damage cells by initiating reactions that break down cell membranes.
• D)fast-paced living shortens one's lifespan.

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Definitions:

Months of Age

A measurement of time used to denote the age of infants and young children by counting the number of months since birth.

Object Manipulation

The skill of using the hands and fingers to manipulate, move, control, or use objects effectively.

Cognition

Acquiring knowledge and insight through the mental processes of thinking, experiencing, and sensory engagement.

Examine Detail

The process of inspecting or scrutinizing something closely in order to observe or analyze its components.