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 A
Explanation
A. The “danger zone” for bacterial growth is between 40°F and 140°F (4°C–60°C). Within this temperature range, bacteria such as Salmonella, E. coli, and Listeria can multiply rapidly, increasing the risk of foodborne illness. Foods should be kept below 40°F in refrigeration or above 140°F during cooking or holding to prevent bacterial proliferation.
B. 35°F–155°F is slightly outside the standard danger zone range. Temperatures below 40°F are generally safe, and 155°F exceeds the threshold where most bacteria are destroyed.
C. 30°F–130°F is too low and does not accurately reflect the range in which bacteria multiply rapidly. Foods at 30°F are generally frozen or safe from bacterial growth.
D. 50°F–150°F does not reflect the standardized danger zone. Bacterial growth can occur at lower temperatures, starting around 40°F, and most pathogens are destroyed above 140°F.
Correct Answer is D
Explanation
A. Listeriosis is a bacterial infection caused by Listeria monocytogenes, typically from contaminated food, and is particularly dangerous during pregnancy. It is unrelated to cravings for nonfood items.
B. Famine refers to a widespread scarcity of food, often due to crop failure or disaster. It is not a medical condition involving cravings.
C. Preeclampsia is a pregnancy-related condition characterized by high blood pressure and protein in the urine, sometimes accompanied by swelling. It does not involve cravings for nonfood substances.
D. Pica is the medical term for a craving and consumption of nonfood substances such as dirt, clay, chalk, ice, or paper. It is often associated with nutritional deficiencies (e.g., iron or zinc deficiency), pregnancy, or certain mental health conditions. Pica can lead to health risks, including gastrointestinal blockages, poisoning, or infections if the nonfood items are contaminated.
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