In this passage, which of the following is not mentioned as a role of HGH in the human body?
- A. Regulating the metabolism.
- B. Stimulating the immune system.
- C. Regulating leptin, an appetite-controlling hormone.
- D. Facilitating calcium retention.
Correct Answer: C
Rationale: The correct answer is C: Regulating leptin, an appetite-controlling hormone. In the provided passage, it is stated that human growth hormone (HGH) is essential for regulating metabolism, building muscle, facilitating calcium retention, and stimulating the immune system. However, leptin is not mentioned as directly regulated by HGH. Instead, the passage discusses how inadequate sleep can lead to lowered levels of leptin, affecting appetite control. Choices A, B, and D are all roles of HGH explicitly mentioned in the passage, making them incorrect answers. Therefore, C is the correct choice as it was not directly linked to HGH in the passage.
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Which is the best title for the passage about Hypertension?
- A. How to Manage Hypertension Successfully
- B. Doctors Discover the Hidden Dangers of Hypertension
- C. Doctors Work to Understand the Causes of Hypertension
- D. Causes, Symptoms, Complications, and Management of Hypertension
Correct Answer: D
Rationale: The best title for the passage about Hypertension is 'Causes, Symptoms, Complications, and Management of Hypertension.' This title accurately reflects the content of the passage, which provides information about the causes, symptoms, complications, and management of hypertension. It covers a broad spectrum of information presented in the passage, making it the most comprehensive and suitable title.
Choice A, 'How to Manage Hypertension Successfully,' is too narrow as it focuses solely on management without encompassing the other crucial aspects like causes and symptoms. Choice B, 'Doctors Discover the Hidden Dangers of Hypertension,' is misleading as the passage does not focus on any recent discoveries but rather provides general information about hypertension. Choice C, 'Doctors Work to Understand the Causes of Hypertension,' is also inaccurate as the passage mainly discusses causes, symptoms, complications, and management, rather than doctors' ongoing research efforts.
What conclusion can the reader draw after reading the passage about The Sleep Workout?
- A. Getting uninterrupted sleep is more important than getting enough sleep.
- B. Insufficient sleep may result in an increased risk for obesity.
- C. Human growth hormone is not essential for muscle development.
- D. Leptin is essential for building muscle.
Correct Answer: B
Rationale: The correct answer is B because the passage highlights that insufficient sleep could lead to an increased risk of obesity. The passage emphasizes the importance of uninterrupted sleep in muscle development and mentions that inadequate sleep is linked to lowered levels of leptin, a hormone that controls appetite. This imbalance in leptin due to lack of sleep can lead to increased cravings for carbohydrates, contributing to obesity. Choice A is incorrect as the passage stresses the significance of both uninterrupted sleep and getting enough sleep for muscle growth. Choice C is incorrect because the passage clearly states that human growth hormone (HGH) is essential for muscle development. Choice D is incorrect as leptin is not essential for building muscle but is mentioned in the passage as a hormone related to controlling appetite and its link to inadequate sleep and obesity.
What does the term elasticity mean, as used in the passage about Hypertension?
- A. Firmness.
- B. Compactness.
- C. Flexibility.
- D. Rigidity.
Correct Answer: C
Rationale: Elasticity, as used in the passage about Hypertension, refers to the stretchiness or flexibility of blood vessels. The text mentions that blood vessels lose elasticity and stiffen as a person ages, indicating that they become less flexible. This eliminates choices A and D (Firmness and Rigidity) as the correct answers. Choice B (Compactness) is unrelated to the concept of elasticity in the context of blood vessels and is therefore incorrect. Understanding elasticity as the ability to stretch or flex helps in choosing flexibility as the correct answer.
What is the author's primary purpose in writing the essay about Sunny-Side Up?
- A. To persuade.
- B. To reflect.
- C. To entertain.
- D. To inform.
Correct Answer: D
Rationale: The author's purpose is to inform readers about the benefits of sunlight.
What is the main idea of the passage about Super Foods?
- A. Super foods are low in calories but provide essential nutrients that have enormous health benefits.
- B. U.S. supermarkets should make a point of stocking up on powerful super foods.
- C. Blueberries are a super food that contains a natural inflammatory as well as important vitamins and minerals.
- D. Doctors now believe that daily inclusion of super foods in the diet can reverse the aging process.
Correct Answer: A
Rationale: The main idea is that super foods are low in calories but provide essential nutrients with significant health benefits.