Reference no: EM133568056
Activity 1 - Calibration
Record your data from Activity 1 in the boxes below. Enter the data you collected for the samples you tested (carbohydrates, fat, protein, nucleic acids) in the "Readout Calories" columns. Then calculate the theoretical caloric content of the carbohydrates, fat, protein, and nucleic acids samples based on the table and information given above. Place the answers in the "Expected Calories" columns.
1. Is the calorimeter accurate enough for use in an experiment? Explain.
Activity 2
Record your data from Activity 2 in the boxes below. Enter the data you collected for the samples you tested (beef, bread, celery, chicken) in the appropriate columns (weight in grams, readout calories). Then calculate the theoretical caloric content of the food based on its composition of carbohydrates, fat, protein, nucleic acids samples based on the table and formula given above. Place the answers in the "Expected Calories" columns.
1. Explain why the grams of the nutrient molecules in a food do not add up to the total gram weight of the food.
2. Explain why the calorimeter value varied from the expected caloric content calculated for each food.
Activity 3
Record your data from Activity 3 in the boxes below. Enter the data you collected for the samples you tested (beef, bread, celery, chicken) in the columns for the appropriated animals (cow, dog, rat, human).
1. Explain why there might be differences in the calorie calculations for the different animals.
2. Explain why it is important to know that animals vary in their ability to obtain calories from food.