37. Which of the following sentences can best express the main idea of the passage?
(A) College classrooms are often drab and dreary places.
(B) Research shows that unattractive classrooms are unappealing and may adversely affect academic performance.
(C) Wolling and Montage selected two identical classrooms to conduct their research.
(D) Both teachers and students like the newly decorated classrooms.

33. According to the passage, which of the following statements is true? (A) Students helped design the “friendly classroom.” (B) Students took two different courses. (C) Students stayed in one room throughout the course. (D) Students were not told they were involved in a study.

34. According to the passage, which of the following adjectives is NOT intended in the design of the “friendly classroom”? (A) stuffy (B) informal (C) comfortable (D) cheerful

35. According to the passage, which of the following statements is NOT true? (A) The two professors in the study had read about the purpose of the research. (B) The students in the friendly classroom performed better on course exams. (C) In a traditional college classroom, chairs are lined up straight rows facing a lectern. (D) In a study, over 80% of university students described their classrooms as ugly.

36. Which would be the most appropriate title for this passage? (A) Cushions and Wooden Cubes (B) Colors in the Classrooms (C) A Common Psychology Course (D) Sterile and Friendly Classrooms

38. Excess sugar is brought from the blood into the cells by _____. (A) insulin (B) carbohydrates (C) glucose (D) caffeine

39. Which of the following items is NOT increased or released after the intake of sugar? (A) insulin (B) tryptophan (C) serotonin (D) calcium

40. We can conclude that a quick energy boost results when sugar _____. (A) increases tryptophan levels (B) is moved into the cells (C) rapidly pours into the bloodstream (D) works together with starch

41. The passage suggests that a high-protein snack _____. (A) provides more long-term energy than a high-sugar snack (B) should be eaten with carbohydrates (C) is similar to a highly refined carbohydrate snack (D) contains more fat and calories than a sugary snack

42. The main idea of paragraphs 2-4 is that _____. (A) sugar is a good source of carbohydrates (B) there are a few reasons why sugar slows us down (C) sugar has several beneficial effects on the body (D) eating a moderate amount of sweets may be okay for some people

43. What does the word “initiate” in the last paragraph mean? (A) block (B) follow (C) begin (D) disturb