Describe the major periods of growth and how they differ.
What will be an ideal response?
Answer: Physical growth is at its peak during infancy, during childhood it can occur in spurts, healthy children grow a few inches taller each year. Second period of increased growth is adolescence with onset of puberty, gain 15% of adult height-continue growing taller into 20s, gain 45-85% more weight than when they entered puberty. for both- males and females kidneys double in size, stomach grows and begins secreting enzymes, brain finishes growing by 6-10 years, heart by 9 years.
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Which of the following is a role for diet in physical activity?
a. Diets high in fat lead to a fall in amino acid utilization for fuel. b. Diets lacking in carbohydrates lead to increased amino acid utilization for fuel. c. Deficiencies of vitamins have no effect on performance provided that all other nutrients are adequate. d. Deficiencies of minerals have no effect on performance provided that all other nutrients are adequate. e. Anaerobic strength training does uses more protein for energy.
Which of the following is not a function of fat in foods?
A. Aroma B. Flavor C. Grittiness D. Texture
Most receptor proteins are most likely which type?
A) ?peripheral proteins B) ?internal proteins C) ?integral proteins D) ?glycoproteins
Which of the following is a characteristic of the trace minerals?
a. A deficiency sign common to many trace minerals is dermatitis b. The amounts in foods are dependent, in part, on soil composition c. Deficiencies are more difficult to recognize in children than in adults d. The amount of all trace minerals in the average person totals approximately 100 grams