Q: Which equation correctly represents the energy density of a food item?

$\frac{\text{calories}}{\text{weight (g)}}$

Question 1

Which of the following best describes the Recommended Dietary Allowance (RDA)?

Accepted Answer

The average daily intake level estimated to meet the needs of nearly all (97-98%) healthy individuals in a particular group.

Question 2

A 2000 calorie diet with 20% protein, 50% carbohydrates, and 30% fat falls within which of the following Acceptable Macronutrient Distribution Ranges (AMDR)?

Accepted Answer

Protein: 10-35%, Carbohydrates: 45-65%, Fat: 20-35%

Question 3

Which of the following is a micronutrient?

Accepted Answer

Vitamin C

Question 4

Which equation correctly represents the energy density of a food item?

Accepted Answer

$\frac{	ext{calories}}{	ext{weight (g)}}$

Question 5

Which of the following is NOT a function of dietary fiber?

Accepted Answer

Provides a concentrated source of energy

Question 6

A patient presents with muscle wasting, impaired growth, and low body temperature. Which nutrient deficiency is most likely responsible?

Accepted Answer

Marasmus (protein-energy malnutrition)

Question 7

Which of the following statements about water-soluble vitamins is TRUE?

Accepted Answer

They are not stored in the body and must be consumed regularly.

Question 8

Which of the following is a complete protein source?

Accepted Answer

Eggs

Question 9

A vegan is at increased risk for which vitamin deficiency, and what is a recommended solution?

Accepted Answer

Vitamin B12; take a B12 supplement or consume fortified foods

Question 10

Which of the following best describes the process of peristalsis?

Accepted Answer

Continuous involuntary contractions that push food along the GI tract

Question 11

Which of the following is a symptom of folate (Vitamin B9) deficiency during pregnancy?

Accepted Answer

Neural tube defects in the fetus

Question 12

Which of the following is a major function of phospholipids in the body?

Accepted Answer

Emulsification of fats in digestion

Question 13

Which of the following is a distinguishing feature of unsaturated fatty acids compared to saturated fatty acids?

Accepted Answer

Unsaturated fatty acids have one or more double bonds and a kinked structure.

Question 14

Which of the following is the primary source of energy for the body?

Accepted Answer

Glucose

Question 15

A person with low vitamin D and low calcium is at risk for which condition?

Accepted Answer

Osteoporosis

Question 16

Which of the following is NOT a step in the process of digestion?

Accepted Answer

Production of bile in the gallbladder

Question 17

Which equation would you use to calculate the percentage of calories from fat in a 2000 calorie diet with 60g of fat?

Accepted Answer

$\frac{60 	imes 9}{2000} 	imes 100$

Question 18

Which of the following is a feature of evidence-based nutrition practice guidelines?

Accepted Answer

They use a systematic process for identifying, analyzing, and synthesizing scientific evidence.

Question 19

Which of the following is a conditional essential amino acid?

Accepted Answer

Glutamine

Question 20

Which of the following is TRUE regarding insoluble fiber?

Accepted Answer

It is tightly packed and does not dissolve in water.

General Biology Study Notes: Nutrition, Digestion, and Nutrient Deficiencies

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