You Are Observing a Cell

question 40

Essay

You are observing a cell.Its cell wall is made of a long-chain polysaccharide called peptidoglycan.It has the ability to make all but the simplest molecules and can make all of the 20 amino acids.What kind of cell is it? If the cell contained pigments capable of photosynthesis,what would it be called?

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Definitions:

Isotopic Ages

The determination of the age of rocks, minerals, or samples by measuring the relative abundance of specific isotopes.

Correlations

In geology, the establishment of equivalency between geological features or layers at different locations based on their characteristics and age.

Dashed Lines

Lines consisting of dashes, used in diagrams to represent boundaries, paths, or other demarcated features.

Index Fossils

Fossils of organisms that were geographically widespread but limited to a short span of geological time, used to define and identify geological periods.