Carbohydrates and Lipids
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Questions and Answers

What is the general formula for carbohydrates?

  • CH3OH
  • CnHnO2n
  • CnH2nOn (correct)
  • C2H4O2
  • Which type of sugar consists of single sugar subunits?

  • Polysaccharides
  • Disaccharides
  • Oligosaccharides
  • Monosaccharides (correct)
  • Which polysaccharide aids in digestion but cannot be broken down by enzymes?

  • Starch
  • Lignin
  • Cellulose (correct)
  • Glycogen
  • What potential health issues can result from excessive intake of simple sugars like sucrose and glucose?

    <p>Cardiovascular issues, dental problems, obesity, type 2 diabetes</p> Signup and view all the answers

    Which class of lipids serves as energy storage, structural components, and signaling molecules?

    <p>Triglycerides</p> Signup and view all the answers

    Why should trans fats and saturated fats be limited in the diet?

    <p>Due to their negative impact on cardiovascular health</p> Signup and view all the answers

    Disaccharides like sucrose and lactose have three sugar subunits.

    <p>False</p> Signup and view all the answers

    Cellulose, a polysaccharide in plants, can be easily broken down by enzymes.

    <p>False</p> Signup and view all the answers

    Excessive intake of simple sugars like sucrose and glucose can lead to dental problems.

    <p>True</p> Signup and view all the answers

    Phospholipids are examples of lipids that serve as energy storage.

    <p>False</p> Signup and view all the answers

    Trans fats and saturated fats have a positive impact on cardiovascular health.

    <p>False</p> Signup and view all the answers

    Polysaccharides like starch and glycogen are composed of many glucose subunits.

    <p>True</p> Signup and view all the answers

    Monosaccharides like glucose, fructose, ribose, and deoxyribose are single sugar subunits, important for ______ and hydrophilic properties.

    <p>energy</p> Signup and view all the answers

    Disaccharides like sucrose and lactose consist of two sugar subunits, while polysaccharides like starch and glycogen have many ______ subunits.

    <p>glucose</p> Signup and view all the answers

    Cellulose, a polysaccharide in plants, cannot be broken down by enzymes but aids in digestion and feeling full ______.

    <p>longer</p> Signup and view all the answers

    Excessive intake of simple sugars like sucrose and glucose can lead to cardiovascular issues, dental problems, ______, and type 2 diabetes.

    <p>obesity</p> Signup and view all the answers

    Lipids, including triglycerides, phospholipids, cholesterol, and prostaglandins, serve as energy storage, structural components, and ______ molecules.

    <p>signaling</p> Signup and view all the answers

    Trans fats and saturated fats, common in animal products, should be limited in the diet due to their negative impact on cardiovascular ______.

    <p>health</p> Signup and view all the answers

    Match the following types of carbohydrates with their descriptions:

    <p>Monosaccharides = Single sugar subunits important for energy and hydrophilic properties Disaccharides = Consist of two sugar subunits Polysaccharides = Have many glucose subunits and include starch and glycogen Cellulose = Cannot be broken down by enzymes but aids in digestion and feeling full longer</p> Signup and view all the answers

    Match the following health issues with the excessive intake of simple sugars:

    <p>Cardiovascular issues = Result from excessive intake of sucrose and glucose Dental problems = Result from excessive intake of sucrose and glucose Obesity = Result from excessive intake of sucrose and glucose Type 2 diabetes = Result from excessive intake of sucrose and glucose</p> Signup and view all the answers

    Match the following lipids with their functions:

    <p>Triglycerides = Serve as energy storage Phospholipids = Serve as structural components Cholesterol = Serve as signaling molecules Prostaglandins = Serve as signaling molecules</p> Signup and view all the answers

    Match the following fats with their dietary recommendations:

    <p>Trans fats = Should be limited in the diet due to negative impact on cardiovascular health Saturated fats = Should be limited in the diet due to negative impact on cardiovascular health Unsaturated fats = Considered healthier alternatives for cardiovascular health Polyunsaturated fats = Considered healthier alternatives for cardiovascular health</p> Signup and view all the answers

    Match the following lipid components with their roles:

    <p>Energy storage = Function served by triglycerides Structural components = Function served by phospholipids Signaling molecules = Functions served by cholesterol and prostaglandins Catalysts = Functions served by cholesterol and prostaglandins</p> Signup and view all the answers

    Match the following lipid types with their sources:

    <p>Triglycerides = Found in various food sources like oils, nuts, and seeds Phospholipids = Abundant in cell membranes and egg yolks Cholesterol = Found in animal products like meat, eggs, and dairy Prostaglandins = Produced in the body from fatty acids</p> Signup and view all the answers

    Study Notes

    • Carbohydrates are biological molecules found in the body with the formula CnH2nOn, having twice the number of hydrogens as carbon and oxygen.
    • Monosaccharides like glucose, fructose, ribose, and deoxyribose are single sugar subunits, important for energy and hydrophilic properties.
    • Disaccharides like sucrose and lactose consist of two sugar subunits, while polysaccharides like starch and glycogen have many glucose subunits.
    • Cellulose, a polysaccharide in plants, cannot be broken down by enzymes but aids in digestion and feeling full longer.
    • Excessive intake of simple sugars like sucrose and glucose can lead to cardiovascular issues, dental problems, obesity, and type 2 diabetes.
    • Lipids, including triglycerides, phospholipids, cholesterol, and prostaglandins, serve as energy storage, structural components, and signaling molecules.
    • Trans fats and saturated fats, common in animal products, should be limited in the diet due to their negative impact on cardiovascular health.

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    Description

    Explore the role of carbohydrates like monosaccharides, disaccharides, and polysaccharides in the body, along with the functions of lipids such as triglycerides and cholesterol. Learn about the impact of excessive sugar intake and the importance of limiting trans fats and saturated fats.

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