Our Current Understanding of the Origin of Eukaryotic Organelles Such

question 81

Multiple Choice

Our current understanding of the origin of eukaryotic organelles such as mitochondria is that they

• A) were copies of a cell nucleus that failed to be separated by cytokinesis.
• B) are prokaryotes that were taken into a cell and now live there symbiotically.
• C) are variations of the plasma membrane.
• D) are new forms of life that arose inside other cells.

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Definitions:

Id

In Freudian psychology, the part of the human psyche that is the source of instinctual impulses and demands for immediate satisfaction of basic needs.

Superego

A component of Sigmund Freud's psychoanalytic theory, representing the ethical or moral conscience.

Defence Mechanism

Psychological strategies deployed by individuals unconsciously to protect themselves from anxiety arising from unacceptable thoughts or feelings.

Sublimation

The process of redirecting socially unacceptable impulses or urges into socially acceptable actions or behaviors.