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Muscle cells have high ATP demands. Which of the following is a scientific claim about how the structure of the mitochondria in muscle cells should be different than it is in other cells because of the high energy demands of mitochondria?


The inner membrane of the mitochondria in muscle cells should have more folds to increase the surface area, allowing more ATP to be synthesized.

A

The inner membrane of the mitochondria in muscle cells should be more permeable to large enzymes, allowing the same reactions to occur in both compartments of the mitochondria.

B

The outer membrane of the mitochondria in muscle cells should be thicker, allowing more rapid diffusion of molecules into the mitochondria.

C

The outer membrane of the mitochondria of muscle cells should have more folds, increasing the surface area for faster diffusion of molecules from the cytoplasm.

D

Respuesta :

CGlees

Answer:

The answer is choice D

Explanation:

If a cell has more folds on the outer membrane, the Surface Area to Volume ratio increases, maximizing rate of diffusion.

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luisvaschetto

The scientific claim about the structure of the mitochondria in muscle cells is "The inner membrane of the mitochondria in muscle cells should have more folds to increase the surface area, allowing more ATP to be synthesized" (Option A).

  • The main functions of muscle cells are movement and motion because of their ability to forcefully shorten.

  • Compared to other cells, muscle cells have higher energy demands and higher protein composition.

  • Due to their high energy demands, muscle cells have a high amount of mitochondria, which are the energy centers of eucaryotic cells.

  • Mitochondria are responsible for synthesizing ATP molecules, the energy coin of the cell.

  • The energy released by the hydrolysis of ATP into ADP and phosphate (Pi) is used to perform cellular metabolic functions.

  • The inner membrane of mitochondria contains an ATP synthetase which is responsible to synthesize ATP by taking advantage of the difference in proton (H+) concentration across this mitochondrial membrane.

  • On the other hand, muscle cells also have an important amount of ribosomes to synthesize contractile proteins.

  • The main proteins that form muscle cells are myosin and actin proteins.

In conclusion, the scientific claim about how the structure of the mitochondria in muscle cells is "The inner membrane of the mitochondria in muscle cells should have more folds to increase the surface area, allowing more ATP to be synthesized" (Option A).

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