The outer and inner membranes of mitochondria spindle are?
Correct answer: A. Structurally and functionally different
- A. Structurally and functionally different
- B. Structurally different but functionally similar
- C. Structurally and functionally similar
- D. Structurally similar but functionally different
Explanation
The outer membrane is a phospholipid bilayer consisting of porins. It separates the inside organelle from the rest of the cell and primarily transports nucleotides, ions, and metabolites between cytosol and the intermembrane space. It is also associated with the endoplasmic reticulum. (The outer membrane is similar to the plasma membrane in structure).The inner membrane has several folds called cristae. It is the site of an electron transport chain and produces ATP. This membrane is permeable to oxygen, carbon dioxide, and water only and acts as an electric insulator and chemical barrier. Thus the membranes of mitochondria are structurally and functionally dissimilar.
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About Cell Structure and Function
Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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