Drain the artichokes and reserve the liquid. Add enough water to make 1 cup liquid. Cut the artichokes in quarters. Cook and stir the 5 cloves minced garlic into 1.5 tablespoons oil in a large skillet over medium-high heat until golden. Reduce the heat to low. Add artichokes and tomatoes; simmer 1 minute. Stir in artichoke liquid, lemon juice, pepper flakes, parsley, salt, and pepper. Simmer 5 minutes. Meanwhile in a separate saute pan, cook and stir bread crumbs and 1 tablespoon chopped garlic in remaining half tablespoon oil. Pour artichoke sauce over penne in large bowl; toss gently to coat. Sprinkle with bread crumb mixture and cheese.