According to the Endosymbiotic Theory, Early Eukaryotes Acquired the Mitochondrion

question 29

Multiple Choice

According to the endosymbiotic theory, early eukaryotes acquired the mitochondrion from a symbiotic bacterium. What happened to the bacterial genes?

• A) All of the bacterial genes were transferred to the nuclear genome.
• B) All of the bacterial genes still exist and comprise the mitochondrial genome.
• C) All of the bacterial genes still exist and comprise the chloroplast genome.
• D) Some bacterial genes were transferred to the nucleus, some were lost, and some comprise the mitochondrial genome.

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Definitions:

Blood Clotting

A biological mechanism wherein blood cells and fibrin strands form a clot to stop bleeding and begin repair of the damaged vessel.

Cardiac Output

The volume of blood the heart pumps through the circulatory system in a minute.

Stroke Volume

The amount of blood ejected by the left ventricle of the heart in one contraction.

Lymphatic System

A subsystem of the cardiovascular system; returns excess interstitial fluid (lymph) to the circulation; defends the body against disease organisms.