The endomembrane system did not start developing until the atmosphere was ____.
A) high in oxygen, high in carbon dioxide
B) high in hydrogen, low in oxygen
C) changing from low oxygen to high oxygen levels
D) firmly in the age of aerobes
E) low in hydrogen, low in oxygen

Question

The endomembrane system did not start developing until the atmosphere was ____.
A) ​high in oxygen, high in carbon dioxide
B) ​high in hydrogen, low in oxygen
C) ​changing from low oxygen to high oxygen levels
D) ​firmly in the age of aerobes
E) ​low in hydrogen, low in oxygen

Quizplus · Accepted Answer

The endomembrane system, which includes the endoplasmic reticulum, Golgi apparatus, and lysosomes, did not start developing until the atmosphere shifted from low oxygen to high oxygen levels. This is because the development of this system was necessary for the evolution of aerobic respiration, which requires organelles like mitochondria to function. The other answer choices do not accurately reflect the conditions needed for the development of the endomembrane system.

The Endomembrane System Did Not Start Developing Until the Atmosphere