LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which explanation correctly describes the origin of the mitochondria?
A
Mitochondria were originally prokaryotic cells that were engulfed by an ancestral eukaryotic cell, and the two formed a symbiotic relationship.
B
Mitochondria, formed from ancient chloroplasts in an environment without sunlight, evolved to produce ATP instead of glucose.
C
Mitochondria evolved from the Golgi apparatus after photosynthetic organisms began producing oxygen gas.
D
Mitochondria were formed from methane, water vapor, and carbon dioxide that were struck by lightning on early Earth.
Explanation: 

Detailed explanation-1: -According to the Endosymbiotic Theory, endosymbiosis became the means by which organelles such as mitochondria and chloroplasts within eukaryotic cells came about.

Detailed explanation-2: -Which explanation correctly describes the origin of the mitochondria? Mitochondria were originally prokaryotic cells that were engulfed by an ancestral eukaryotic cell, and the two formed a symbiotic relationship.

Detailed explanation-3: -According to the endosymbiotic theory, mitochondria derive from archeo bacteria, which built a structural and functional association with the cell.

Detailed explanation-4: -Evolutionary Origin of Mitochondria They contain their own DNA, which is circular as is true with bacteria, along with their own transcriptional and translational machinery. Mitochondrial ribosomes and transfer RNA molecules are similar to those of bacteria, as are components of their membrane.

Detailed explanation-5: -Explanation: The Endosymbiotic Theory states that the mitochondria and chloroplast in eukaryotic cells were once aerobic bacteria (prokaryote) that were ingested by a large anaerobic bacteria (prokaryote). This theory explains the origin of eukaryotic cells.

There is 1 question to complete.