Question Detail
Question
Which of the following statements is NOT true of mitochondria of a cell? A. It is the powerhouse of the cells B. It is found in all cells C. They are sausage shaped cell D. They consist of two straight membranes separated by fluid-filled space
Correct Answer
Option B is the correct answer.
Detailed Explanation
Mitochondria are not found in all cells. They are absent in prokaryotic cells (which lack membrane-bound organelles altogether). They are also absent in a few eukaryotic cell types, such as mature mammalian red blood cells (erythrocytes). The other options are generally accurate descriptions.
Hint
Think about the simplest cells (prokaryotes) – do they have this complex organelle?