Nokea
Which of the following vitamins are fat soluble and can become toxic when stored in the body's fat?
- A. Vitamin A
- B. Vitamin B12
- C. Vitamin K
- D. Vitamin E
- E. Vitamin C
- F. Vitamin D
- G. Vitamins B1 and B2
Correct Answer: A,C,D,E
Rationale: Fat-soluble vitamins (A, D, E, K) can accumulate in the body's fat and become toxic in high amounts.
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For nutrients to be utilized, they must first be absorbed into the bloodstream from the GI tract. This is accomplished by uptake of the nutrients into the
- A. Arteries providing the GI tract with blood supply.
- B. Veins carrying deoxygenated blood away from the GI tract.
- C. Capillaries located in the intestinal wall villi.
- D. Vessels in the pylorus of the stomach.
Correct Answer: C
Rationale: Capillaries in the intestinal villi absorb nutrients, which are then transported to the bloodstream.
Water has several important functions in the body. Which of the following are functions of water?
- A. To help maintain body temperature
- B. To help maintain blood pressure
- C. To dilute the waste products in the blood
- D. To flush toxins from your system
- E. To carry nutrients to the tissue cells
Correct Answer: A,B,C,D,E
Rationale: Water regulates temperature, maintains blood pressure, dilutes waste, removes toxins, and transports nutrients.
Which two gender and age groups normally require more calories than the others?
- A. 2- to 3-year-old male
- B. 17-year-old female
- C. 15-year-old male
- D. 39-year-old female
- E. 63-year-old male
Correct Answer: B,C
Rationale: Teenagers, particularly males, have higher caloric needs due to rapid growth and higher metabolic rates during puberty.
Which of the following nutrients cannot be digested and retain their original chemical identities in the body?
- A. Vitamins
- B. Proteins
- C. Minerals
- D. Fats
- E. Simple carbohydrates
Correct Answer: C
Rationale: Minerals are not broken down during digestion and retain their chemical structure in the body.
Which statements about body mass index (BMI) are accurate?
- A. It is a useful tool when evaluating a person's health risk.
- B. Exceptions to using BMI accurately include nonathletic people and pregnant women.
- C. It is the best tool as an indicator of obesity in the general population.
- D. People whose BMI is between 25 and 29.9 are considered obese.
- E. People whose BMI is below 18.5 are generally considered underweight.
Correct Answer: A,E
Rationale: BMI is useful for assessing health risks, and a BMI below 18.5 indicates underweight. BMI 25-29.9 is overweight, not obese.