Explore Cornell Home Gardening Flower Growing Guides Growing Guide Airponic Fruit Hydroponic Tower Garden System Growing Zones Melatonin Helps Plants Grow and Resist Stress, UH Engineers Report University of Houston Many foods, but especially most plant foods, are not one single macronutrient. Beans contain both protein and carbohydrates, and a cup of pasta contains more protein than a large egg. This Plants Top View Images Browse 2,591,689 Stock Photos, Vectors, and Video Adobe Stock