The Argument That Mitochondria and Chloroplasts Originally Were Self-Sufficient Bacteria

question 1

Multiple Choice

The argument that mitochondria and chloroplasts originally were self-sufficient bacteria is supported by the presence of what protein-DNA structure?

• A)nucleoids
• B)chromatin
• C)importins
• D)chromatids
• E)nucleosomes

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Definitions:

Diffusion

The passive movement of molecules or particles from an area of higher concentration to an area of lower concentration, until equilibrium is reached.

Allergic Reaction

An immune response to a substance, known as an allergen, that is typically harmless to most people.

Osmosis

The movement of water molecules through a semipermeable membrane from a region of lower solute concentration to one of higher concentration.

Charged Molecules

Molecules that have an electric charge due to the loss or gain of one or more electrons.