A typical animal cell containing the appropriate organelles is illustrated here. Scientists have determined that cellular organelles have specific functions. They include:

nucleus - control center; contains DNA

ribosome - site of protein synthesis

mitochondria - powerhouse; produces cellular energy

endoplasmic reticulum - movement of substances through the cell

Golgi appararus - packaging biomolecules

cell membrane - regulates what enters and leaves the cell; homeostasis

Suppose this cell is part of animal muscle tissue. How would we modify the model?

A) Increase the number of mitochondria.

B) Increase the number of Golgi apparatus.

C) Remove the cell membrane and add a cell wall.

D) Attach additional ribosomes to the endoplasmic reticulum.

Interestingly, if we look at a muscle cell we would see that they have an increased number of mitochondria. This happens because it is in mitochondria that happens a process called cellular respiration, which provides energy for the proper functioning of the cell, and muscle cells spend a lot of ATP to perform muscle contraction. So, the right answer is Letter A.

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