Which of the following statements about mitochondria is TRUE? A. The outer mitochondrial membrane is impermeable to ions and small molecules. B. Mitochondria are small round organelles that are often associated with actin filaments of the cytoskeleton. C. In sperm cells, mitochondria are seen wrapping tightly around the nucleus. D. Mitochondria are large enough to be seen with modern light microscopy, and can occupy as much as 20% of cytoplasmic volume.

D. Mitochondria are large enough to be seen with modern light microscopy, and can occupy as much as 20% of cytoplasmic volume.

Explanation:

Mitochondria are oval shaped organelles responsible for cellular respiration.

One of their defining characteristics

is the influx of protons from the mitochondrial membrane that enables ATP synthesis.

Mitochondria are known as the power house of the cell.

Structurally, mitochondria are spherocylindrical with a length of 2 microns and a diameter of 1 micron.

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.