In the context of protein synthesis, cell signaling is the process by which:
A) amino acids are joined via peptide bonds.
B) a protein's three-dimensional structure is altered.
C) the DNA strands in a cell combine to form chromosomes.
D) a cell is notified when to make a particular protein.
D
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The processes of growth and development
A. are most rapid during adulthood. B. occur in a predictable and orderly fashion during infancy and childhood. C. become random and unpredictable during adolescence. D. are completed by birth in a full-term infant.
The predominant form of hunger in the United States today is caused by: a. political barriers
b. lack of food nearby to purchase. c. lack of money. d. inadequate farm land. e. lack of energy to shop for food.
Which of the following has the most starch?
A. 8 fluid ounces of milk B. 4 ounces of meat C. 1 medium orange D. 1 cup of kidney beans
Alen is a 30-year-old college student who has recently lost 30 pounds. He lost the excess weight by watching his diet and by working out. He still would like to lose the last ten pounds he gained through his 20s, most of which is in his torso area. He has become frustrated because his weight loss has slowed down. He has seen on the Internet and in several fitness magazines a product advertized as
a weight-loss supplement containing acai berry. The product ads state that the powerful antioxidants in the supplement will melt away fat and remove waste from the body while he is sleeping. Alen is tempted to purchase the product in an attempt to quickly lose his last 10 pounds. However, before he decides to purchase the acai berry supplement he learns that there are other ingredients in the product. The ingredients include ephedra, ginseng, coenzyme Q10, acai berry extract, chromium, potassium, caffeine, and chicory root. What should Alen do to lose the last ten pounds? A) Use the acai berry supplement and continue to work out and eat right B) Look for a different weight-loss supplement that is more effective and has been proven safe C) Be patient and continue to eat well and change up his workout routine D) Try a high-protein, low-carbohydrate diet and increase the duration of his aerobic workouts