ne gram of starch has the same number of Calories as one gram of sugar.

Question

Group of answer choices

True

False

Flag question: Question 10
Question 102 pts
Match the appropriate food item with the indicator chemical you would use to detect the principal organic molecule present in that item.

Note: some indicator chemicals may be used for more than one of these food items or not at all.

Group of answer choices
maple syrup

[ Choose ]
lard (animal fat)

[ Choose ]
Cheerios cereal

[ Choose ]
chicken breast

[ Choose ]

Flag question: Question 11
Question 113 pts

A nutrition label indicates the organic molecules, vitamins, and minerals, and Calories present (per serving) in the food item. If an individual ate 2 cookies (please note that the amounts listed in the nutritional above are for 1 cookie), how many Calories would have been from:

Fat:
[ Select ]

Carbohydrates:
[ Select ]

Proteins:
[ Select ]

Answer 1

Let's address your questions one by one:

Question 9

Statement: "One gram of starch has the same number of Calories as one gram of sugar."

• Answer: False.

Typically, carbohydrates (such as starch and sugar) have similar energy content, about 4 Calories per gram. However, the structure of these carbohydrates can affect digestion and energy release; starch is a complex carbohydrate, while sugar (a simple carbohydrate) may be digested more quickly. This can lead to different caloric effects in dietary contexts, so for practical purposes, the statement would be considered misleading.

Question 10

For matching food items to indicator chemicals, we would typically use the following indicators:

1. Maple syrup:

   • Indicator: Benedict's Solution (to detect reducing sugars)

2. Lard (animal fat):

   • Indicator: Sudan III or Brown Paper Test (to detect fats)

3. Cheerios cereal:

   • Indicator: Iodine (to detect starch) and Benedict's Solution (for sugars)

4. Chicken breast:

   • Indicator: Biuret Solution (to detect proteins)

Question 11

Assuming you have given nutritional information per cookie (for example):

• Fat: 5 grams
• Carbohydrates: 10 grams
• Proteins: 2 grams
• Calories: 100

If you had to calculate the total Calories from fat, carbohydrates, and protein based on 2 cookies (while knowing 1 cookie's nutritional info), here’s how you would compute it:

1. Calories from Fat:

   • 1 gram of fat = 9 Calories
   • So, in 1 cookie: \(5 \text{ grams} \times 9 \text{ Calories/gram} = 45 \text{ Calories}\)
   • For 2 cookies: \(45 \text{ Calories} \times 2 = 90 \text{ Calories}\)

2. Calories from Carbohydrates:

   • 1 gram of carbohydrates = 4 Calories
   • So, in 1 cookie: \(10 \text{ grams} \times 4 \text{ Calories/gram} = 40 \text{ Calories}\)
   • For 2 cookies: \(40 \text{ Calories} \times 2 = 80 \text{ Calories}\)

3. Calories from Proteins:

   • 1 gram of protein = 4 Calories
   • So, in 1 cookie: \(2 \text{ grams} \times 4 \text{ Calories/gram} = 8 \text{ Calories}\)
   • For 2 cookies: \(8 \text{ Calories} \times 2 = 16 \text{ Calories}\)

Final Summary for Question 11:

• Fat: 90 Calories
• Carbohydrates: 80 Calories
• Proteins: 16 Calories

You can adjust these numbers depending on the actual nutritional values you have for the cookies in question.