The Highest Recession Velocities That Have Recently Been Detected for Quasars

question 453

Multiple Choice

The highest recession velocities that have recently been detected for quasars are:

• A) 3000 km/s, or about 1% of the speed of light.
• B) more than 90% of the speed of light.
• C) about 10% of the speed of light.
• D) almost half the speed of light.

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Definitions:

Pinocytosis

A form of endocytosis where cells ingest extracellular fluid and its dissolved contents.

Facilitated Diffusion

The process of spontaneous passive transport of molecules or ions across a biological membrane via specific transmembrane integral proteins.

Active Exocytosis

Active exocytosis is a cellular process where substances are expelled from a cell, requiring energy for vesicles to fuse with the plasma membrane.

Chromatid

Each of the two strands of a replicated chromosome, which are joined at the centromere before cell division.