Proteins on the surface of vesicles determine where vesicles go. which cell organelle provides the instructions for these protenis

The endoplasmic recticulum (ER) is the organelle that provides instructions to the proteins on the surface of vesicles.

The endoplasmic reticulum is a type of organelle which are found in eukaryotic cells. Their function is to support the manufacturing and packaging system of the cells. They work closely with the Golgi apparatus, mRNA, tRNA and  ribososmes.

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.