What is a complex carbohydrate consisting of long chains of glucose?
Disaccharides
Monosaccharides
Glycogen
Polysaccharides
The Correct Answer is D
A. Disaccharides are carbohydrates composed of two sugar molecules linked together, such as sucrose (table sugar), lactose, and maltose. They are simpler than polysaccharides and provide quick energy but are not considered complex carbohydrates.
B. Monosaccharides are the simplest form of carbohydrates, consisting of a single sugar molecule such as glucose, fructose, or galactose. They are the building blocks of more complex carbohydrates but are not complex carbohydrates themselves.
C. Glycogen is a specific type of polysaccharide that serves as the body’s storage form of glucose in liver and muscle tissues. While glycogen is a complex carbohydrate, the term in the question refers to complex carbohydrates in general, not just the stored form.
D. Polysaccharides are complex carbohydrates composed of long chains of glucose units linked together. Examples include starch (found in plants), glycogen (stored in animals), and cellulose (a structural component in plants). Polysaccharides provide sustained energy as they are broken down more slowly than simple sugars and play roles in energy storage and structural support.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. While this option lists some food items, it is incomplete and includes “citrus” separately, which is already part of the fruit group, and “cheese” separately instead of as part of the broader dairy category.
B. The USDA food patterns include five main food groups: grains, vegetables, fruits, dairy, and protein foods. These patterns are designed to provide balanced nutrition, ensure adequate intake of essential nutrients, and promote overall health. Protein foods include lean meats, poultry, seafood, eggs, nuts, seeds, and legumes. The patterns emphasize whole grains, a variety of colorful vegetables and fruits, low-fat or fat-free dairy products, and lean protein sources. These food groups form the foundation of healthy eating recommendations, such as those presented in MyPlate.
C. This option is incomplete because it omits vegetables and dairy, which are essential food groups in the USDA guidelines.
D. While fruits, vegetables, and whole grains are important, this option leaves out dairy and protein foods, making it incomplete according to USDA recommendations.
Correct Answer is D
Explanation
A. Menopause is the natural cessation of menstruation in women, typically occurring around age 50. While it involves hormonal changes and can affect bone density, metabolism, and cardiovascular health, it does not impair swallowing or directly affect nutrition intake.
B. Taste threshold refers to the sensitivity of the taste buds to detect flavors. Although aging can alter taste perception, it does not cause difficulty swallowing or lead directly to inadequate nutrition.
C. Fibromyalgia is a chronic disorder characterized by widespread musculoskeletal pain, fatigue, and tender points. While it can affect quality of life, it does not directly impair swallowing or nutritional intake.
D. Dysphagia is a disorder that affects swallowing, making it difficult or painful to move food or liquid from the mouth to the stomach. It is common among older adults due to age-related changes, neurological disorders (such as stroke or Parkinson’s disease), or structural abnormalities. Dysphagia increases the risk of malnutrition, dehydration, and aspiration pneumonia, making proper diagnosis and management essential for maintaining adequate nutrition.
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