Question

Which list orders the terms from least complex (at the beginning) to most complex (at the end)? a. atom, molecule, macromolecule, cell b. molecule, macromolecule, cell, atom c. atom, cell, molecule, macromolecule d. molecule, atom, macromolecule, cell

Answer 1

The correct order of terms from least complex to most complex is: atom, molecule, macromolecule, cell.

Step-by-step explanation:

The correct order of the terms from least complex to most complex is:

1. atom
2. molecule
3. macromolecule
4. cell

An atom is the smallest unit of matter, and it forms molecules when multiple atoms are bonded together. Macromolecules, such as DNA, are composed of multiple molecules, and cells are the most complex structures, consisting of various macromolecules and organelles.

Answer 2

The correct order from least to most complex is atom, molecule, macromolecule, cell.

Step-by-step explanation:

To order the terms from least complex to most complex, one must understand the hierarchy of biological organization. The sequence that correctly represents this hierarchy is atom, molecule, macromolecule, cell. An atom is the smallest and most fundamental unit of matter that retains the properties of an element, consisting of a nucleus surrounded by electrons.

Atoms bond together to form a molecule, which is a chemical structure consisting of at least two atoms held together by one or more chemical bonds. Many molecules that are biologically important are macromolecules, which are large molecules typically formed by polymerization (combining smaller units called monomers). Finally, a cell is the smallest unit of life, encompassing macromolecules and more to form a living organism.