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 (A)</p> Signup and view all the answers

What are simple lipids made up of?

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

What characterizes sterols?

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

Which substance is made up of triglycerides?

<p>Fat found in food (C)</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 (C)</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 (B)</p> Signup and view all the answers

How many calories are provided by each gram of fat?

<p>9 cal (B)</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 (D)</p> Signup and view all the answers

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

<p>55 (C)</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 (A)</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 (B)</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 (A)</p> Signup and view all the answers

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

<p>Derived lipids (D)</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 (A)</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 (B)</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 (B)</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 (B)</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 (B)</p> Signup and view all the answers

What are fats composed of?

<p>Fatty acids and glycerol (B)</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 (A)</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 (D)</p> Signup and view all the answers

How many calories are provided by each gram of fat?

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

Which substance is made up of triglycerides?

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

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

<p>25-30% (B)</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 (B)</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 (B)</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. (D)</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 (A)</p> Signup and view all the answers

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