A Group of Cells That Act Together to Perform a Function

question 68

Multiple Choice

A group of cells that act together to perform a function is called a(n)

• A) molecule.
• B) organ.
• C) tissue.
• D) organism.

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Definitions:

Stereoisomeric Aldohexoses

Different spatial arrangements of atoms in aldohexose carbohydrates, leading to different physical and chemical properties despite having the same molecular formula.

Epimers

Stereoisomers that differ in configuration at exactly one stereogenic center and have the same molecular formula.

Asymmetric Carbons

Carbon atoms bonded to four different groups, leading to chirality or "handedness" in molecules, essential in stereochemistry.

α-D-Ribopyranose

An aldopentose sugar in the pyranose form where the α-configuration at the anomeric carbon is specific to the D-ribose structure.