Question

Food & Matter Quiz- Chapter 7 Lesson 2
5 of 55 of 5 Items
07:41 / 20:00





Question
Possible Points: 20
During a nutrition lab, students compared these items:

Protein bar: 18 g protein, 12 g carbohydrate, 6 g fat, plus calcium and vitamin C.
Bottle of water: 0 g protein, carbohydrate, or fat; contains dissolved minerals.
Diet soda: 0 g protein, carbohydrate, or fat; has artificial sweetener.
Potato chips: 3 g protein, 24 g carbohydrate, 9 g fat, trace sodium.
They also reviewed macromolecule diagrams and learned that all carbohydrates, fats, and proteins contain C, H, O atoms, while proteins also contain N atoms.

Some students argued that water and diet soda should count as food because we consume them. Others thought minerals should count as food because they’re needed for survival.



Scientists define food as any substance that provides energy and/or molecular building blocks.


Which of the following items count as food under this definition?
(Select ALL that apply.) 2 items

Responses

C. The bottle of water — it hydrates cells but supplies no usable energy or building blocks.
C. The bottle of water — it hydrates cells but supplies no usable energy or building blocks.

A. The protein bar — it contains carbohydrates, fats, and proteins that can be broken down for energy and matter.
A. The protein bar — it contains carbohydrates, fats, and proteins that can be broken down for energy and matter.

D. The diet soda — it contains artificial sweetener so it can provide some molecular building blocks.
D. The diet soda — it contains artificial sweetener so it can provide some molecular building blocks.

E. The potato chips — they have macronutrients (C, H, O-based) that provide energy and matter.
E. The potato chips — they have macronutrients (C, H, O-based) that provide energy and matter.

B. The calcium in the protein bar — it provides energy because it’s on the nutrition label.
B. The calcium in the protein bar — it provides energy because it’s on the nutrition label.

Answer 1

Correct answers: A and E.

- A (protein bar): Yes — contains proteins, fats, and carbohydrates that can be broken down for energy and for molecular building blocks.
- E (potato chips): Yes — contains carbohydrates, fats, (and some protein) that provide energy and building blocks.

Why the others are not selected:
- Bottle of water: hydrates but supplies no usable energy or organic building-block molecules.
- Diet soda: typically has no macronutrients (no usable energy or substantial molecular building blocks); artificial sweeteners in diet sodas don’t provide significant energy or bulk building material.
- The calcium option: the calcium mineral itself does not provide energy (and the option’s reasoning is incorrect).