Carbohydrates, lipids, and proteins

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What are carbohydrates?

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Carbohydrates are organic molecules made up of carbon, hydrogen, and oxygen, typically in a ratio of 1:2:1. They serve as a primary energy source and are found in foods like sugars, starches, and fibers.

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What are lipids?

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Lipids are a diverse group of hydrophobic organic molecules, including fats, oils, and steroids. They are primarily composed of carbon and hydrogen and are important for energy storage, insulation, and cell membrane structure.

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What are proteins?

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Proteins are large, complex molecules made up of amino acids. They play critical roles in the body, including catalyzing biochemical reactions (enzymes), providing structure, and facilitating communication between cells.

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What are the building blocks of carbohydrates?

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The building blocks of carbohydrates are monosaccharides, which are simple sugars like glucose and fructose.

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What are the building blocks of proteins?

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The building blocks of proteins are amino acids, which are organic compounds that combine to form proteins.

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What is cellulose?

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Cellulose is a polysaccharide that serves as a structural component in the cell walls of plants, providing rigidity and strength.

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What is starch?

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Starch is a polysaccharide that serves as a storage form of energy in plants, composed of long chains of glucose molecules.

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What is glycogen?

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Glycogen is a polysaccharide that serves as a storage form of energy in animals, primarily found in the liver and muscles.

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What elements are organic molecules primarily composed of?

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Organic molecules are primarily composed of carbon and hydrogen, along with other elements like oxygen, nitrogen, and phosphorus.

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What is the role of enzymes?

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Enzymes are proteins that act as catalysts in biochemical reactions, speeding up the reactions without being consumed in the process.