Which Lab Procedure Is the Best to Use to Determine

question 154

Multiple Choice

Which lab procedure is the best to use to determine whether a newly discovered single-celled organism is prokaryotic or eukaryotic?

• A) Search for the presence of membrane-bound structures within the cell, using transmission electron microscopy.
• B) Determine the molecular makeup of the organism's cell membrane, using chemical analysis.
• C) Stain cells with a ribosome-specific stain, and then use light microscopy to assess whether ribosomes are present or absent in the cells.
• D) Use biochemical methods to determine whether the organism has a cell wall and is also capable of carrying out photosynthesis.
• E) Use analytical techniques to determine the number of genes encoded in the organism's DNA.

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Definitions:

Heat Waves

Prolonged periods of excessively hot weather, which can have significant health, ecological, and societal impacts.

Temperature

A measure of the warmth or coldness of an environment or object, expressed in degrees.

Causally Related

A connection between two events where one directly impacts or brings about the other.

Predictability

The degree to which a future event or outcome can be accurately foreseen based on current knowledge or past events.