Carboxyl groups have an electronegative oxygen atom double bonded to a carbon atom. This carbon-oxygen bond is very polar and the fact that its a double bond increases the polarity of the bond.
PEA agar, also referred to as Phenylethyl Alcohol Agar is a medium  used by microbiologists to grow microorganisms. The ingredient that  supplies nitrogen is casein. Making the world better, one answer at a time.
How to Germinate Peas. Peas supply a wide variety of nutrients to your diet. Depending on the type--from sugar snap peas to dry peas to green garden peas-they provide high amounts of fiber, iron, protein, Vitamin C, lysine, tryptophan and carbohydrates.Peas are a cool-season crop, so indoor planting and germination should take place several weeks before the last frost in your area.This will ensure plenty of time for outdoor planting, growth and harvest before temperatures warm to the point where pea plants fail to grow and produce.lthough you can plant pea seeds directly in the ground, horticulturists with the Oregon State University Extension Service and the University of Maryland College of Agriculture and Natural Resources advise that knowledge of how to germinate peas before planting ensures a better harvest.