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Lipids and Fats Classification
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Lipids and Fats Classification

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Questions and Answers

What is the characteristic feature of lipids?

  • Solubility in water
  • Low solubility in water
  • Insolubility in water (correct)
  • High solubility in water

    • At what temperature are fats considered solid?

  • -20°C
  • 20°C (correct)
  • 10°C
  • -10°C

    • Which of the following is a more concentrated source of energy than carbohydrates and proteins?

  • Proteins
  • Oils
  • Fats (correct)
  • Carbohydrates

    • Which category of lipids includes phospholipids, glycolipids, and lipoprotein?

    <p>Compound lipids</p> Signup and view all the answers

    What are simple lipids made up of?

    <p>Three fatty acids attached to glycerol</p> Signup and view all the answers

    What characterizes sterols?

    <p>They have a benzene ring structure</p> Signup and view all the answers

    Which type of fatty acids have single bonds between carbon atoms and contain all the hydrogen atoms possible?

    <p>Saturated fatty acids</p> Signup and view all the answers

    Which substance is made up of triglycerides?

    <p>Fat found in food</p> Signup and view all the answers

    What is the main function of fat in the body?

    <p>To keep body temperature in the normal range</p> Signup and view all the answers

    What happens if you take in more fat than needed?

    <p>It will cause an excess calorie intake and potential weight gain</p> Signup and view all the answers

    How many calories are provided by each gram of fat?

    <p>9 cal</p> Signup and view all the answers

    Which type of lipids have an extremely high percentage of saturated fatty acids and are solid at room temperature?

    <p>Vegetable oils</p> Signup and view all the answers

    What is the recommended amount of fat intake for a 2000 Cal diet?

    <p>55</p> Signup and view all the answers

    Apart from cholesterol, which other substance is mentioned to be included in the fat-like substances?

    <p>Fatty acids</p> Signup and view all the answers

    What can excess fat intake lead to?

    <p>Increased risk of diabetes, heart disease, high blood pressure, and certain cancers</p> Signup and view all the answers

    What is the function of the acid group at one end of the carbon chain in fatty acids?

    <p>It is able to bond with glycerol to form a triglyceride</p> Signup and view all the answers

    Which category of lipids includes cholesterol, carotenes, and steroids?

    <p>Derived lipids</p> Signup and view all the answers

    What is the main difference between fats and oils?

    <p>Fats contain more saturated fatty acids than oils</p> Signup and view all the answers

    What is the primary characteristic of compound lipids?

    <p>At least one fatty acid is replaced by carbohydrate, protein, or phosphorus</p> Signup and view all the answers

    What is the structure of sterols?

    <p>Have a benzene ring structure and are not made up of fatty acids and glycerol</p> Signup and view all the answers

    What characterizes derived lipids?

    <p>They are chemicals produced when simple and compound lipids combine and undergo hydrolysis</p> Signup and view all the answers

    What distinguishes simple lipids from compound lipids?

    <p>Simple lipids are made up of three fatty acids attached to glycerol, while compound lipids have at least one fatty acid replaced by carbohydrate, protein, or phosphorus</p> Signup and view all the answers

    What are fats composed of?

    <p>Fatty acids and glycerol</p> Signup and view all the answers

    Which type of fatty acids have single bonds between carbon atoms and contain all the hydrogen atoms possible?

    <p>Saturated fatty acids</p> Signup and view all the answers

    What is the main function of fat in the body?

    <p>To absorb and transport vitamins in the body</p> Signup and view all the answers

    How many calories are provided by each gram of fat?

    <p>9 calories</p> Signup and view all the answers

    Which substance is made up of triglycerides?

    <p>Fat found in food</p> Signup and view all the answers

    At what percentage of total energy intake should fat ideally contribute?

    <p>25-30%</p> Signup and view all the answers

    What happens if you keep on taking in more calories than you burn through physical activity?

    <p>You will gain weight and increase your chance of being overweight</p> Signup and view all the answers

    What can excess fat intake lead to?

    <p>Increased risk of diabetes, heart disease, high blood pressure, and some forms of cancer</p> Signup and view all the answers

    What distinguishes saturated fatty acids from unsaturated fatty acids?

    <p>Presence of single bonds between carbon atoms in saturated fatty acids.</p> Signup and view all the answers

    Which type of lipids have an extremely high percentage of saturated fatty acids and are solid at room temperature?

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

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