31.How much energy is required to raise the temperature of 1 kilogram of water 1°C?

a.1 kilocalorie

b.10 kilocalories

c.100 kilocalories

d.1,000 kilocalories

32.In North America, food energy is commonly expressed in kcalories.  Which of the following is the international unit for food energy?

a.kilojoules

b.kilograms

c.kilometres

d.kilonewtons

33.Internationally, units of food energy are expressed in which of the following units?

a.newtons

b.degrees Centigrade

c.kilojoules

d.kilocalories

34.What is the equivalent volume in millilitres of a half-cup?

a.50 mL

b.85 mL

c.120 mL

d.200 mL

35.What is the approximate weight, in grams, of a half-cup vegetable serving?

a.25 g

b.50 g

c.75 g

d.100 g

36.Gram for gram, which of the following compounds provides the most energy?

a.fats

b.alcohol

c.proteins

d.carbohydrates

37.A diet for weight loss calls for a daily intake of 1400 kcalories, which includes 30 g of fat. Approximately what percentage of the total energy is contributed by fat?

a.2.1 percent

b.8.5  percent

c.15.0 percent

d.19.3 percent

38.A diet provides a total of 2200 kcalories per day, of which 40 percent of the energy is from fat and 20 percent from protein. How many grams of carbohydrate are contained in the diet?

a.220 g

b.285 g

c.440 g

d.880 g

39.What is the kcalorie value of a meal supplying 110 g of carbohydrates, 25 g of protein, 20 g of fat, and 5 g of alcohol?

a.160 kcalories

b.345 kcalories

c.560 kcalories

d.755 kcalories

40.Which of the following nutrient sources yields more energy than 4 kcalories per gram?

a.plant fats

b.plant proteins

c.animal proteins

d.plant carbohydrates