Cumulative

Question 1

Methods of estimating body composition

Answer 1

1. Underwater weighing or hydrodensity (very accurate)
2. Bioeletrical impedance
3. Fatfold measure (low accuracy)
4. Waist circumference (moderate accuracy)

Question 2

metabolically fit

Answer 2

lack biochemical risk factors for chronic disease (i.e., high cholesterol or high blood pressure).

Question 3

Define the BMI for underweight, healthy, overweight and obese levels

Answer 3

• Underweight is defined as a BMI below 18.5.
• Healthy BMI’s are between 18.5 and 24.9.
• Overweight is defined as a BMI of 25 – 29.9.
• Obese is defines as a BMI greater than or equal to 30 kg/m2.

Question 4

Behavior modifications to keep weight off

Answer 4

1. maintain a low calorie, low fat diet
   2, high level of physical activity (at least one hour per day)
2. eat breakfast every day
3. weigh themselves at least once per week
4. watch less than 10 hours of TV per week

Question 5

Coenzyme

Answer 5

• a vitamin or provitamin plus a molecular structure that assists in the catalytic actions of enzymes.
• some enzymes need coenzymes and some do not

Question 6

Which of the following vitamins act physiologically as a coenzyme or part of a coenzyme: thiamin, biotin, vitamin B6, pantothenic acid, folate?

Answer 6

All of the these vitamins act or are a part of a conezyme

Question 7

______ ______ due to folate depletion, plus neurological problems because of poor myelin formation.

Answer 7

megaloblastic anemia

Question 8

Vitamin B12 deficiency is called _______ _____ because two symptoms develop:

• megaloblastic anemia due to folate depletion, plus
• neurological problems because of poor myelin formation.

Answer 8

pernicious anemia

Question 9

Older adults are at risk for ______ _____because _____ _____ is a common condition in adults over 50 and results in impaired functioning of the tissue lining the stomach. ___ and intrinsic factor tend to be reduced in older populations resulting in poor _________ ___ absorption.

Answer 9

1. Pernicious anemia
2. atrophic gastritis
3. HCL
4. vitamin B12

Question 10

Beta carotene has two roles: 1) is a precursor to retinal and 2) is a ______.

Answer 10

• antioxidant

- a precursor for vitamin A

Question 11

A _____ of baby carrots supplies about a half of your need for vitamin A for the day.

Answer 11

a handful

Question 12

Sources of Vitamin A as retinol:

Answer 12

milk and milk products, eggs, liver

Question 13

Sources of vitamin A as carotenoids:

Answer 13

dark green, yellow and orange vegetables

Question 14

Exposing hands, face and arms to the sun for ___ to ___ minutes, ___ to ___ times a week should be plenty for good vitamin D status.

Answer 14

1. 5-10

2. 2-3

Question 15

Name 2 phytochemicals which are antioxidants

Answer 15

1. carotenoids

2. flavonoids

Question 16

Name the vitamins that act as antioxidants

Answer 16

vitamin E, vitamin C, and many phytochemicals such as carotenoids and flavonoids, act as antioxidants to halt damage attributed to free radicals.

Question 17

A number of cellular enzymes including ______ ______ and _______ ______ can seek out and neutralize free radicals. These enzymes are dependent on the minerals _____, _____, ______, and ____.

Answer 17

1. glutahione peroxidase
2. superoxide dismistase
3. selenium, copper, manganese, and zinc