Multiple Choice
In eukaryotic cells, the primary function of mitochondria is to:
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11. Aerobic Respiration
Mitochondria
Multiple Choice
Do plant cells have mitochondria, and what is their primary role in the cell?
A
Yes; they generate ATP primarily through cellular respiration (e.g., oxidative phosphorylation).
B
No; plant cells lack mitochondria and rely exclusively on chloroplasts for ATP production.
C
Yes; they are the site of photosynthesis and carbon fixation.
D
Yes; they synthesize proteins for secretion as part of the endoplasmic reticulum–Golgi pathway.
Verified step by step guidance1
Step 1: Understand the question is asking whether plant cells contain mitochondria and what their primary function is within the cell.
Step 2: Recall that mitochondria are organelles found in almost all eukaryotic cells, including plant cells, and are known as the 'powerhouses' of the cell.
Step 3: Recognize that mitochondria generate ATP, the cell's energy currency, primarily through the process of cellular respiration, which includes oxidative phosphorylation.
Step 4: Differentiate mitochondria from chloroplasts, which are the organelles responsible for photosynthesis and carbon fixation in plant cells, not ATP generation via respiration.
Step 5: Conclude that plant cells do have mitochondria, and their primary role is to produce ATP through cellular respiration, complementing the energy produced by chloroplasts.
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