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Multiple Choice
Which of the following lists correctly identifies the four main types of lipids found in biological systems?
A
Monosaccharides, disaccharides, polysaccharides, and nucleotides
B
Fatty acids, triglycerides, phospholipids, and steroids
C
Cholesterol, glucose, cellulose, and hemoglobin
D
Amino acids, peptides, proteins, and nucleic acids
Verified step by step guidance
1
Step 1: Begin by understanding the definition of lipids. Lipids are a diverse group of hydrophobic molecules that play critical roles in biological systems, including energy storage, membrane structure, and signaling.
Step 2: Review the four main types of lipids found in biological systems. These include fatty acids, triglycerides, phospholipids, and steroids. Each type has distinct functions and characteristics.
Step 3: Compare the options provided in the question. Eliminate choices that include molecules not classified as lipids, such as monosaccharides, disaccharides, polysaccharides, nucleotides, amino acids, peptides, proteins, and nucleic acids.
Step 4: Focus on the correct answer, which lists fatty acids, triglycerides, phospholipids, and steroids. These are the main types of lipids found in biological systems, as they align with the definition and functions of lipids.
Step 5: Reinforce your understanding by briefly reviewing the roles of each lipid type: fatty acids are building blocks of lipids, triglycerides store energy, phospholipids form cell membranes, and steroids act as signaling molecules and structural components.