Multiple Choice
Photosynthesis is to chloroplasts as cellular respiration is to which organelle?
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11. Aerobic Respiration
Mitochondria
Multiple Choice
Why do skeletal muscle cells typically contain more mitochondria than skin cells?
A
Muscle cells have more mitochondria primarily to increase their capacity for protein synthesis on ribosomes.
B
Skin cells have more mitochondria than muscle cells because they need to produce digestive enzymes for the body.
C
Muscle cells require more mitochondria because they perform most of the body's detoxification reactions.
D
Muscle cells have higher ATP demands for contraction, so they contain more mitochondria to support aerobic respiration.
Verified step by step guidance1
Step 1: Understand the primary function of skeletal muscle cells, which is to contract and generate force for movement.
Step 2: Recognize that muscle contraction requires a large amount of energy in the form of ATP (adenosine triphosphate).
Step 3: Recall that mitochondria are the organelles responsible for producing ATP through aerobic respiration, which is more efficient than anaerobic processes.
Step 4: Compare this to skin cells, which have lower energy demands because their functions (such as protection and barrier formation) do not require as much ATP.
Step 5: Conclude that skeletal muscle cells contain more mitochondria to meet their higher ATP demands, supporting sustained muscle contraction and overall energy needs.
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