Biology STAAR (State of Texas Assessments of Academic Readiness) Practice Test

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Test your knowledge for the Biology STAAR Exam. Prepare with interactive quizzes, explore detailed questions with solutions, and enhance your understanding to excel!

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Which biological macromolecule includes sugars like glucose and fructose?

Proteins
Nucleic acids
Lipids
Carbohydrates

The correct answer is: Carbohydrates

The correct response is that carbohydrates include sugars such as glucose and fructose. Carbohydrates are organic compounds composed of carbon, hydrogen, and oxygen, typically in a ratio of 1:2:1. They serve as a primary energy source for living organisms and are divided into simple sugars (monosaccharides like glucose and fructose) and complex carbohydrates (polysaccharides like starch and cellulose). Glucose and fructose are examples of monosaccharides, which are the simplest forms of carbohydrates, and they play crucial roles in energy metabolism within cells. This category of macromolecules is essential for several biological functions, including energy storage and structural support in cells. Understanding the role of carbohydrates is fundamental to grasping broader biological concepts related to metabolism, nutrition, and cellular function.