A drug is tested in the laboratory and is found to create holes in both mitochondrial membranes. Scientists suspect that the drug will be harmful to human cells because it will inhibit

D) the citric acid cycle and oxidative phosphorylation

Explanation:

From the available options:

A) the citric acid cycle.

B) oxidative phosphorylation.

C) glycolysis.

D) the citric acid cycle and oxidative phosphorylation

The mitochondrial membrane is a structure that surrounds the matrix of the organelle. The inner membrane of the mitochondrion has proteins that functions in electron transport and synthesis of ATP. Electrons are supplied into the chain from the citric acid cycle that takes place in the matrix.

Hence, if a drug is known to damage mitochondrial membranes, it will affect both the citric acid cycle and oxidative phosphorylation accordingly because the the electron generated from citric acid cycle will be redundant and causes the cycle to stop and without the electron transport chain, ATP cannot be synthesized through oxidative phosphorylation.

The correct option is D.

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.