객관식
In humans, which cell type would typically contain a higher number of mitochondria: a skeletal muscle cell or a skin (epidermal) cell?
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11. Aerobic Respiration
Mitochondria
객관식
Which cell type would be expected to contain the greatest number of mitochondria due to its high demand for ATP?
A
Mature red blood cell (erythrocyte)
B
Goblet cell in the intestinal epithelium specialized for mucus secretion
C
Cardiac muscle cell (cardiomyocyte)
D
Adipocyte (fat cell) specialized for lipid storage
검증된 단계별 안내1
Step 1: Understand the role of mitochondria in cells. Mitochondria are the organelles responsible for producing ATP, the energy currency of the cell, through cellular respiration.
Step 2: Consider the energy demands of each cell type listed. Cells with high energy requirements will have more mitochondria to meet their ATP needs.
Step 3: Analyze each cell type: Mature red blood cells lack mitochondria because they rely on anaerobic metabolism; goblet cells secrete mucus but do not have extremely high energy demands; adipocytes store fat and have moderate energy needs.
Step 4: Recognize that cardiac muscle cells (cardiomyocytes) continuously contract to pump blood, requiring a constant and large supply of ATP, thus they contain a high number of mitochondria.
Step 5: Conclude that the cell type with the greatest number of mitochondria due to high ATP demand is the cardiac muscle cell.
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