In this type of structure a hydrogen bond forms between an amino acid and one four amino acids further along the chain. In a perfect alpha-helix, therefore, every peptide bond is hydrogen-bonded to two other peptide bonds in the chain length, but this is rarely the case in natural proteins.
Now that we know how many fluid ounces and milliliters there are in a teaspoon and a tablespoon, we can count easily how many teaspoons in a tablespoon: 1  1 US tablespoon has 3 teaspoons. 2  1 Australian tablespoon has 4 teaspoons.
By using their chart, you can easily see that there are 16 TBSP (tablespoons) in 1 cup. This means there are 10 2/3 TBSP in 2/3 of a cup. To measure this out, you can either eyeball it, or you can use 10 TBSP + 2 teaspoons (TSP) to get 2/3 cups since there are 3 TSP in a TBSP.