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Which is wrong about mitochondria? (a) S...

Which is wrong about mitochondria?
(a) Site of aerobic respiration
(b) Supported by double unit membrane
(c) Infolding of inner membrane forms cristae
(d) Many linear DNA and few ribosomes are found in matrix.

A

Site of aerobic respiration

B

Supported by double unit membrane

C

Infolding of inner membrane forms cristae

D

Many linear DNA and few ribosomes are found in matrix.

Text Solution

AI Generated Solution

The correct Answer is:
To determine which statement about mitochondria is incorrect, let's analyze each option step by step: 1. **Option (a): Site of aerobic respiration** - Mitochondria are indeed known as the "powerhouse of the cell" because they are the primary site for aerobic respiration. This process generates ATP, which is essential for cellular energy. - **Conclusion**: This statement is correct. 2. **Option (b): Supported by double unit membrane** - Mitochondria have two membranes: an outer membrane and an inner membrane. This double membrane structure is a characteristic feature of mitochondria. - **Conclusion**: This statement is correct. 3. **Option (c): Infolding of inner membrane forms cristae** - The inner membrane of mitochondria is indeed folded into structures known as cristae. These infoldings increase the surface area for chemical reactions involved in ATP production. - **Conclusion**: This statement is correct. 4. **Option (d): Many linear DNA and few ribosomes are found in matrix** - Mitochondria contain a single circular DNA molecule, not many linear DNA molecules. Additionally, while mitochondria do have ribosomes, they are not described as "few" in the context of their ability to synthesize some of their own proteins. The statement is misleading because it suggests the presence of multiple linear DNA strands, which is incorrect. - **Conclusion**: This statement is incorrect. Based on the analysis, the wrong statement about mitochondria is: **Answer**: (d) Many linear DNA and few ribosomes are found in matrix. ---
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