IA #2

1) Protein is a sequenced chain of peptide bonds made of amino acid. They are essential building blocks for life and make up much of a body’s structure, and are one of the three main macronutrients (the others being fat and carbohydrates)

2) S’mores poptarts contribute 3g of protein/one pastry (a single serving) according to this nutrition label:

However, the FDA website specifies quantity of a substance/100 grams, so they list the protein content of a POUCH of poptarts (2 pastries/pouch) as 5.82 grams. Each poptart is by itself is 52 grams.

3) Ingredients that contribute to the protein include the flour, containing glutenin and gliadin.

4) According to the aforementioned nutrition label, there are 4 calories/gram of protein. If a serving size of one poptart has 3 grams of protein, that means 12 calories are contributed to the calorie amount. You can tell this by looking at the calories per gram listing under the %DV and multiplying the number of grams of protein by the number of calories/gram (3g protein/serving x 4 calories/gram of protein=12 calories)

FAT

1. Fat is one of the primary macronutrients needed for survival (along with proteins and carbohydrates), and is composed of a glyceride and fatty acid. Most fats we eat are triglycerides, made of a glycerol ‘backbone’ and 3 fatty acid chains.

2) This food is contributing 8% of ones DV of fat. This means 8% of the fat you need daily can be attained by consuming one s’mores poptart.

3) Ingredients that contribute to the fat content include palm oil and egg whites, which contribute the saturated and unsaturated fats.

4) This food contains 1.5g of saturated fat, 2g of polyunsaturated fat, and 1g of monounsaturated fat. This food contains 0g of trans fat which has been linked to heart disease. Saturated fats typically come from animals, whereas unsaturated come from plants. Unsaturated also points to the addition of hydrogen atoms to the fat bond.

5) Poptarts contain 9 calories per gram. Using the simple multiplication used to find the protein, we find that poptarts have:

1.5g saturated fat x 9 calories=13.5 calories/gram of saturated fat

2g polyunsaturated fat x 9 calories=18 calories/gram polyunsaturated fat

1g monounsaturated fat x 9 calories=9 calories/gram of monounsaturated fat.

You can tell this by checking the nutrition label below %DV where it lists calories per gram and utilizing simple math.