Multiple Choice
In eukaryotic cells, what is the primary function of mitochondria?
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11. Aerobic Respiration
Mitochondria
Multiple Choice
In the human body, which cell type typically contains the highest density of mitochondria to meet its constant ATP demand?
A
Red blood cells (erythrocytes)
B
White adipocytes (fat cells)
C
Keratinocytes of the epidermis
D
Cardiac muscle cells (cardiomyocytes)
Verified step by step guidance1
Understand the role of mitochondria: Mitochondria are the organelles responsible for producing ATP through cellular respiration, which is essential for energy-demanding processes in cells.
Consider the energy demands of different cell types: Cells that require a lot of energy to perform their functions will have a higher density of mitochondria to meet this demand.
Analyze the options: Red blood cells lack mitochondria because they rely on anaerobic metabolism; white adipocytes store fat and have moderate energy needs; keratinocytes are skin cells with lower energy requirements.
Focus on cardiac muscle cells: These cells contract continuously to pump blood, requiring a constant and high supply of ATP, which explains their high mitochondrial density.
Conclude that cardiac muscle cells (cardiomyocytes) have the highest density of mitochondria among the given options to sustain their continuous energy demand.
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