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NEET 2006
Exam
NEET
Year
2006
Subject
Botany
Chapter
Photosynthesis in Higher Plants

NEET 2006 · Botany · Photosynthesis in Higher Plants

Which of the following statements regarding mitochondrial membrane...

Which of the following statements regarding mitochondrial membrane is not correct ?

Options

  1. Athe outer membrane resembles a sieve
  2. Bthe outer membrane is permeable to all kinds of molecules
  3. Cthe enzymes of the electron transfer chain are embedded in the outer membrane
  4. Dthe inner membrane is highly convoluted forming a series of infoldings

Correct answer

C. the enzymes of the electron transfer chain are embedded in the outer membrane

Step-by-step solution

In mitochondria, the outer membrane is semi permeable, and thus resembles a sieve permeable to all molecules of 10,000 Daltons. The inner membrane is selectively permeable and highly convoluted, forming a series of infoldings known as cristae. The enzymes of the electron transport chain are found in the inner membrane, while the outer membrane contains enzymes involved in mitochondrial lipid synthesis. Related Theory The inner membrane surrounds a central fluid-filled space called inner chamber or mitochondrial matrix. The machinery for energy generation can be found on the cristae (infoldings of the inner membrane). The matrix side of the inner membrane and cristae bear numerous tennis racket-like particles called oxysomes or elementary particles or F0−F1F_0-F_1 particles. The cristae and the proteins of the inner membrane aid in the production of ATP molecules during oxidative phosphorylation. Enzymes of electron transport chain are located in the inner membrane.
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