Why are omega - 3 fatty acids important for the diet?

Omega-3 fatty acids are one of the "good" types of fat. They may help lower the risk of heart disease, depression, dementia, and arthritis. Your body can't make them. You have to eat them or take supplements.

Omega-3 fatty acids may help to:

Lower blood pressure.

Reduce triglycerides.

Slow the development of plaque in the arteries.

Reduce the chance of abnormal heart rhythm.

Reduce the likelihood of heart attack and stroke.

Lessen the chance of sudden cardiac death in people with heart disease.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?