Multiple Choice
According to the endosymbiotic theory, which of the following is likely the ancestor of the mitochondria?
1. Introduction to Biochemistry
Endosymbiotic Theory
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What is the primary purpose of cristae in the mitochondria?
A
Provide a large surface area for chemical reactions
B
Prevent the mitochondria from folding onto itself
C
Protect the mitochondrial DNA
D
No purpose has been identified yet
Verified step by step guidance1
Understand the structure of mitochondria: Mitochondria are double-membraned organelles found in eukaryotic cells, known as the powerhouse of the cell due to their role in energy production.
Identify the cristae: Cristae are the folds of the inner mitochondrial membrane. These folds increase the surface area available within the mitochondria.
Relate structure to function: The increased surface area provided by the cristae is crucial for the mitochondria's function, as it allows for more space for the electron transport chain and ATP synthesis to occur.
Consider the role of the electron transport chain: The electron transport chain is a series of protein complexes located in the inner mitochondrial membrane, where ATP is produced through oxidative phosphorylation.
Conclude the primary purpose: The primary purpose of the cristae is to provide a large surface area for these chemical reactions, specifically the electron transport chain and ATP synthesis, to occur efficiently.
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